Dr. Thomas Starzl, the “Father of Transplantation,” passes away

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Thomas E. Starzl, MD, PhD, FACS, known as the “father of transplantation” for his role as the first surgeon to perform a successful human liver transplant and for developing techniques for safe, standardized surgery in the field of transplantation, died March 4 at his home in Pittsburgh, PA. He was 90 years old.

After nearly a decade of laboratory research and surgical practice at institutions such as Northwestern Medical School, Chicago, IL, and Johns Hopkins Hospital, Baltimore, MD, Dr. Starzl performed the world’s first successful liver transplant while practicing at the University of Colorado, Boulder, in 1967. This achievement came at a time when the prevailing medical opinion on the feasibility of liver transplants was pessimistic, but Dr. Starzl’s monumental success led to a newfound clinical interest in the possibilities of allogenic human transplantation. In 1980, he introduced anti-lymphocyte globulin and cyclosporine to his previous development of azathioprine and corticosteroid immunosuppression to prevent organ rejection. It was this advancement that moved organ transplantation from being considered an experimental to a clinically accepted treatment modality.

Dr. Starzl joined the University of Pittsburgh School of Medicine in 1981 as professor of surgery; there, he launched the first liver transplant program in the U.S. Though he retired from clinical and surgical service in 1991 after serving as chief of transplantation services at various Pittsburgh hospitals, he remained at the University of Pittsburgh as distinguished service professor of surgery and director emeritus of the University of Pittsburgh Medical Center’s Thomas E. Starzl Transplantation Institute.

Read about Dr. Starzl’s storied career and a statement from his family at www.news.pitt.edu/news/starzl. For a more thorough account of Dr. Starzl’s accomplishments, visit the University of Pittsburgh’s Dr. Thomas E. Starzl website at www.starzl.pitt.edu/index.html.
 

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Thomas E. Starzl, MD, PhD, FACS, known as the “father of transplantation” for his role as the first surgeon to perform a successful human liver transplant and for developing techniques for safe, standardized surgery in the field of transplantation, died March 4 at his home in Pittsburgh, PA. He was 90 years old.

After nearly a decade of laboratory research and surgical practice at institutions such as Northwestern Medical School, Chicago, IL, and Johns Hopkins Hospital, Baltimore, MD, Dr. Starzl performed the world’s first successful liver transplant while practicing at the University of Colorado, Boulder, in 1967. This achievement came at a time when the prevailing medical opinion on the feasibility of liver transplants was pessimistic, but Dr. Starzl’s monumental success led to a newfound clinical interest in the possibilities of allogenic human transplantation. In 1980, he introduced anti-lymphocyte globulin and cyclosporine to his previous development of azathioprine and corticosteroid immunosuppression to prevent organ rejection. It was this advancement that moved organ transplantation from being considered an experimental to a clinically accepted treatment modality.

Dr. Starzl joined the University of Pittsburgh School of Medicine in 1981 as professor of surgery; there, he launched the first liver transplant program in the U.S. Though he retired from clinical and surgical service in 1991 after serving as chief of transplantation services at various Pittsburgh hospitals, he remained at the University of Pittsburgh as distinguished service professor of surgery and director emeritus of the University of Pittsburgh Medical Center’s Thomas E. Starzl Transplantation Institute.

Read about Dr. Starzl’s storied career and a statement from his family at www.news.pitt.edu/news/starzl. For a more thorough account of Dr. Starzl’s accomplishments, visit the University of Pittsburgh’s Dr. Thomas E. Starzl website at www.starzl.pitt.edu/index.html.
 

 

Thomas E. Starzl, MD, PhD, FACS, known as the “father of transplantation” for his role as the first surgeon to perform a successful human liver transplant and for developing techniques for safe, standardized surgery in the field of transplantation, died March 4 at his home in Pittsburgh, PA. He was 90 years old.

After nearly a decade of laboratory research and surgical practice at institutions such as Northwestern Medical School, Chicago, IL, and Johns Hopkins Hospital, Baltimore, MD, Dr. Starzl performed the world’s first successful liver transplant while practicing at the University of Colorado, Boulder, in 1967. This achievement came at a time when the prevailing medical opinion on the feasibility of liver transplants was pessimistic, but Dr. Starzl’s monumental success led to a newfound clinical interest in the possibilities of allogenic human transplantation. In 1980, he introduced anti-lymphocyte globulin and cyclosporine to his previous development of azathioprine and corticosteroid immunosuppression to prevent organ rejection. It was this advancement that moved organ transplantation from being considered an experimental to a clinically accepted treatment modality.

Dr. Starzl joined the University of Pittsburgh School of Medicine in 1981 as professor of surgery; there, he launched the first liver transplant program in the U.S. Though he retired from clinical and surgical service in 1991 after serving as chief of transplantation services at various Pittsburgh hospitals, he remained at the University of Pittsburgh as distinguished service professor of surgery and director emeritus of the University of Pittsburgh Medical Center’s Thomas E. Starzl Transplantation Institute.

Read about Dr. Starzl’s storied career and a statement from his family at www.news.pitt.edu/news/starzl. For a more thorough account of Dr. Starzl’s accomplishments, visit the University of Pittsburgh’s Dr. Thomas E. Starzl website at www.starzl.pitt.edu/index.html.
 

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Pitolisant Reduces Cataplexy Attacks in Narcolepsy

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If future studies confirm the findings, the drug could become a first-line therapy for cataplexy in patients with narcolepsy.

Pitolisant, a histamine H3 receptor inverse agonist, is well tolerated and effectively reduces cataplexy, according to data published in the March issue of Lancet Neurology. If the drug’s effect is confirmed in long-term studies, pitolisant could become a first-line therapy for cataplexy in patients with narcolepsy, who currently have few treatment options, according to the authors.

Two types of drugs are used to treat cataplexy. Antidepressants are used off-label and not well supported by evidence. Sodium oxybate is effective, but may cause serious adverse events.

Zoltán Szakács, MD, a doctor at the State Health Center in Budapest, and colleagues enrolled patients with narcolepsy from 16 sleep centers in nine countries into a randomized, double-blind, placebo-controlled trial. Eligible participants were age 18, had narcolepsy with cataplexy, had at least three cataplexies per week, and had excessive daytime sleepiness. Patients were randomized to pitolisant or placebo once per day. During a three-week flexible dosing period, patients randomized to pitolisant received 5 mg for the first week, 10 mg for the second week, and for the third week, a dose of between 5 mg and 20 mg, on the basis of safety and efficacy. A four-week period of stable dosing followed. Finally, patients underwent a one-week withdrawal period.

In all, 54 patients received pitolisant, and 51 received placebo. During the stable dosing period, the weekly cataplexy rate was decreased by 75% in patients who received pitolisant and by 38% among controls. The effect was significant regardless of the patient’s stable dose of pitolisant. Use of concomitant anticataplectic treatment before study initiation did not affect the results. The drug also improved scores on the Epworth Sleepiness Scale and maintenance of wakefulness test.

The pitolisant group had a significantly higher rate of treatment-related adverse events than did the placebo group (28% vs 12%). The researchers recorded no serious adverse events, but observed one case of severe nausea in the pitolisant group.

The study’s main limitation is that the diagnosis of narcolepsy was based on nonspecific criteria, said Christian R. Baumann, Professor of Neurology at University Hospital Zurich, in an accompanying editorial. “The fact that reported mean sleep latencies in the cohort of Szakács and colleagues (4.2–4.7 min) were higher than those reported in other cohorts, including ours (2.6–2.9 min), leaves some uncertainty about patient inclusion,” he added.

Nevertheless, the study may contribute to the regulatory approval of pitolisant. “This is good news for clinicians, since we need more treatment options to better tailor individualized therapy for patients with narcolepsy,” said Dr. Baumann.

Erik Greb

Suggested Reading

Szakacs Z, Dauvilliers Y, Mikhaylov V, et al. Safety and efficacy of pitolisant on cataplexy in patients with narcolepsy: a randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2017;16(3):200-207.

Baumann CR. Wide implications of a trial on pitolisant for cataplexy. Lancet Neurol. 2017;16(3):173-174.

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If future studies confirm the findings, the drug could become a first-line therapy for cataplexy in patients with narcolepsy.
If future studies confirm the findings, the drug could become a first-line therapy for cataplexy in patients with narcolepsy.

Pitolisant, a histamine H3 receptor inverse agonist, is well tolerated and effectively reduces cataplexy, according to data published in the March issue of Lancet Neurology. If the drug’s effect is confirmed in long-term studies, pitolisant could become a first-line therapy for cataplexy in patients with narcolepsy, who currently have few treatment options, according to the authors.

Two types of drugs are used to treat cataplexy. Antidepressants are used off-label and not well supported by evidence. Sodium oxybate is effective, but may cause serious adverse events.

Zoltán Szakács, MD, a doctor at the State Health Center in Budapest, and colleagues enrolled patients with narcolepsy from 16 sleep centers in nine countries into a randomized, double-blind, placebo-controlled trial. Eligible participants were age 18, had narcolepsy with cataplexy, had at least three cataplexies per week, and had excessive daytime sleepiness. Patients were randomized to pitolisant or placebo once per day. During a three-week flexible dosing period, patients randomized to pitolisant received 5 mg for the first week, 10 mg for the second week, and for the third week, a dose of between 5 mg and 20 mg, on the basis of safety and efficacy. A four-week period of stable dosing followed. Finally, patients underwent a one-week withdrawal period.

In all, 54 patients received pitolisant, and 51 received placebo. During the stable dosing period, the weekly cataplexy rate was decreased by 75% in patients who received pitolisant and by 38% among controls. The effect was significant regardless of the patient’s stable dose of pitolisant. Use of concomitant anticataplectic treatment before study initiation did not affect the results. The drug also improved scores on the Epworth Sleepiness Scale and maintenance of wakefulness test.

The pitolisant group had a significantly higher rate of treatment-related adverse events than did the placebo group (28% vs 12%). The researchers recorded no serious adverse events, but observed one case of severe nausea in the pitolisant group.

The study’s main limitation is that the diagnosis of narcolepsy was based on nonspecific criteria, said Christian R. Baumann, Professor of Neurology at University Hospital Zurich, in an accompanying editorial. “The fact that reported mean sleep latencies in the cohort of Szakács and colleagues (4.2–4.7 min) were higher than those reported in other cohorts, including ours (2.6–2.9 min), leaves some uncertainty about patient inclusion,” he added.

Nevertheless, the study may contribute to the regulatory approval of pitolisant. “This is good news for clinicians, since we need more treatment options to better tailor individualized therapy for patients with narcolepsy,” said Dr. Baumann.

Erik Greb

Suggested Reading

Szakacs Z, Dauvilliers Y, Mikhaylov V, et al. Safety and efficacy of pitolisant on cataplexy in patients with narcolepsy: a randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2017;16(3):200-207.

Baumann CR. Wide implications of a trial on pitolisant for cataplexy. Lancet Neurol. 2017;16(3):173-174.

Pitolisant, a histamine H3 receptor inverse agonist, is well tolerated and effectively reduces cataplexy, according to data published in the March issue of Lancet Neurology. If the drug’s effect is confirmed in long-term studies, pitolisant could become a first-line therapy for cataplexy in patients with narcolepsy, who currently have few treatment options, according to the authors.

Two types of drugs are used to treat cataplexy. Antidepressants are used off-label and not well supported by evidence. Sodium oxybate is effective, but may cause serious adverse events.

Zoltán Szakács, MD, a doctor at the State Health Center in Budapest, and colleagues enrolled patients with narcolepsy from 16 sleep centers in nine countries into a randomized, double-blind, placebo-controlled trial. Eligible participants were age 18, had narcolepsy with cataplexy, had at least three cataplexies per week, and had excessive daytime sleepiness. Patients were randomized to pitolisant or placebo once per day. During a three-week flexible dosing period, patients randomized to pitolisant received 5 mg for the first week, 10 mg for the second week, and for the third week, a dose of between 5 mg and 20 mg, on the basis of safety and efficacy. A four-week period of stable dosing followed. Finally, patients underwent a one-week withdrawal period.

In all, 54 patients received pitolisant, and 51 received placebo. During the stable dosing period, the weekly cataplexy rate was decreased by 75% in patients who received pitolisant and by 38% among controls. The effect was significant regardless of the patient’s stable dose of pitolisant. Use of concomitant anticataplectic treatment before study initiation did not affect the results. The drug also improved scores on the Epworth Sleepiness Scale and maintenance of wakefulness test.

The pitolisant group had a significantly higher rate of treatment-related adverse events than did the placebo group (28% vs 12%). The researchers recorded no serious adverse events, but observed one case of severe nausea in the pitolisant group.

The study’s main limitation is that the diagnosis of narcolepsy was based on nonspecific criteria, said Christian R. Baumann, Professor of Neurology at University Hospital Zurich, in an accompanying editorial. “The fact that reported mean sleep latencies in the cohort of Szakács and colleagues (4.2–4.7 min) were higher than those reported in other cohorts, including ours (2.6–2.9 min), leaves some uncertainty about patient inclusion,” he added.

Nevertheless, the study may contribute to the regulatory approval of pitolisant. “This is good news for clinicians, since we need more treatment options to better tailor individualized therapy for patients with narcolepsy,” said Dr. Baumann.

Erik Greb

Suggested Reading

Szakacs Z, Dauvilliers Y, Mikhaylov V, et al. Safety and efficacy of pitolisant on cataplexy in patients with narcolepsy: a randomised, double-blind, placebo-controlled trial. Lancet Neurol. 2017;16(3):200-207.

Baumann CR. Wide implications of a trial on pitolisant for cataplexy. Lancet Neurol. 2017;16(3):173-174.

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Abdominal myomectomy: Patient and surgical technique considerations

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Abdominal myomectomy: Patient and surgical technique considerations
Myomectomy is appropriate for many women with uterine fibroids. Here, guidance on abdominal myomectomy, including intraoperative technique, controlling blood loss, and postoperative care.

CASE Woman with fibroids seeks alternative to hysterectomy

A 42-year-old woman (G2P2) presents to the office for evaluation of heavy menstrual bleeding and known uterine fibroids. Physical examination reveals a 16-week-sized uterus, and ultrasonography shows at least 6 fibroids, 2 of which impinge on the uterine cavity. She does not want to have any more children, but she wishes to avoid a hysterectomy.

Abdominal myomectomy: A good option for many women

Abdominal myomectomy is an underutilized procedure. With fibroids as the indication for surgery, 197,000 hysterectomies were performed in the United States in 2010, compared with approximately 40,000 myomectomies.1,2 Moreover, the rates of both laparoscopic and abdominal myomectomy have decreased following the controversial morcellation advisory issued by the US Food and Drug Administration.3

The differences in the hysterectomy and myomectomy rates might be explained by the many myths ascribed to myomectomy. Such myths include the beliefs that myomectomy, when compared with hysterectomy, is associated with greater risk of visceral injury, more blood loss, poor uterine healing, and high risk of fibroid recurrence, and that myomectomy is unlikely to improve patient symptoms.

Studies show, however, that these beliefs are wrong. The risk of needing treatment for new fibroid growth following myomectomy is low.4 Hysterectomy, compared with myomectomy for similar size uteri, is actually associated with a greater risk of injury to the bowel, bladder, and ureters and with a greater risk of operative hemorrhage. Furthermore, hysterectomy (without oophorectomy) can be associated with early menopause in approximately 10% of women, while myomectomy does not alter ovarian hormones. (See “7 Myomectomy myths debunked,” which appeared in the February 2017 issue of OBG Management.) Another myth debunked: Fibroids do not “degenerate” into leiomyosarcomas, and the risk of leiomyosarcoma in premenopausal women with presumed uterine fibroids is extremely low.5,6

For women who have serious medical problems (severe anemia, ureteral obstruction) due to uterine fibroids, surgery usually is necessary. In addition, women may request surgery for fibroid-associated quality-of-life concerns, such as heavy menstrual bleeding, infertility, pelvic pressure, urinary frequency, or incontinence. In one prospective study, the authors found that when women were assessed 6 months after undergoing myomectomy, 75% reported experiencing a significant decrease in bothersome symptoms.7

Myomectomy may be considered even for women with large uterine fibroids who desire uterine conservation. In a systematic review of the perioperative morbidity associated with abdominal myomectomy compared with abdominal hysterectomy for fibroids, which included 1,520 women with uterine size up to 16 to 18 weeks, no difference was found in major morbidity rates.8 Investigators who studied 91 women with uterine size ranging from 16 to 36 weeks who underwent abdominal myomectomy reported 1 bowel injury, 1 bladder injury, and 1 reoperation for bowel obstruction; no women had conversion to hysterectomy.9

Since ObGyn residency training emphasizes hysterectomy techniques, many residents receive only limited exposure to myomectomy procedures. Increased exposure to and comfort with myomectomy surgical technique would encourage more gynecologists to offer this option to their patients who desire uterine conservation, including those who do not desire future childbearing.

Imaging techniques are essential in the preoperative evaluation

For women with fibroid-related symptoms who desire surgery with uterine preservation, determining the myomectomy approach (abdominal, laparoscopic/robotic, hysteroscopic) depends on accurate assessment of the size, number, and position of the fibroids. If abdominal myomectomy is planned because of uterine size, the presence of numerous fibroids, or patient choice, transvaginal/transabdominal ultrasonography usually is adequate for anticipating what will be found during surgery. Sonography is readily available and is the least costly imaging technique that can help differentiate fibroids from other pelvic pathology. Although small fibroids may not be seen on sonography, they can be palpated and removed at the time of open surgery.

If submucous fibroids need to be better defined, saline-infusion sonography can be performed. However, if laparoscopic/robotic myomectomy (which precludes accurate palpation during surgery) is being considered, magnetic resonance imaging (MRI) allows the best assessment of the size, number, and position of the fibroids.10 When adenomyosis is considered in the differential diagnosis, MRI is an accurate way to determine its presence and helps in planning the best surgical procedure and approach.

Correct anemia before surgery

Women with fibroids may have anemia requiring correction before surgery to reduce the need for intraoperative or postoperative blood transfusion. Mild iron deficiency anemia can be treated prior to surgery with oral elemental iron 150 to 200 mg per day. Vitamin C 1,000 mg per day helps to increase intestinal iron absorption. Three weeks of treatment with oral iron can increase hemoglobin concentration by 2 g/dL.

For more severe anemia or rapid correction of anemia, intravenous (IV) iron sucrose infusions, 200 mg infused over 2 hours and given 3 times per week for 3 weeks, can increase hemoglobin by 3 g/dL.11 In our ObGyn practice, hematologists manage iron infusions.

Read about abdominal incision technique

 

 

Abdominal incision technique

Even a large uterus with multiple fibroids usually can be managed through use of a transverse lower abdominal incision. Prior to reaching the lateral borders of the rectus abdominis, curve the fascial incision cephalad to avoid injury to the ileoinguinal nerves (FIGURE 1). Detaching the midline rectus fascia (linea alba) from the anterior abdominal wall, starting at the pubic symphysis and continuing up to the umbilicus, frees the rectus muscles and allows them to be easily separated (see VIDEO 1). Since fascia is not elastic, these 2 steps are important to allow more room to deliver the uterus through the incision.

Illustration: Marcia Hartsock for OBG Management

Delivery of the uterus through the incision isolates the surgical field from the bowel, bladder, ureters, and pelvic nerves. Once the uterus is delivered, inspect and palpate it for fibroids. Identify the fundus and the position of the uterine cavity by locating both uterine cornua and imagining a straight line between them. It may be necessary to explore the endometrial cavity to look for and remove submucous fibroids. Then plan the necessary uterine incisions for removing all fibroids (see VIDEO 2).

Read about managing blood loss

 

 

4 approaches to managing intraoperative blood loss

In my practice, we employ misoprostol, tranexamic acid, vasopressin, and a uterine and ovarian vessel tourniquet to manage intraoperative blood loss.12 Although no data exist to show that using these methods together is advantageous, they have different mechanisms of action and no negative interactions.

Misoprostol 400 μg inserted vaginally 2 hours before surgery induces myometrial contraction and compression of the uterine vessels. This agent can reduce blood loss by 98 mL per case.12

Tranexamic acid, an antifibrinolytic, is given IV piggyback at the start of surgery at a dose of 10 mg/kg; it can reduce blood loss by 243 mL per case.12

Vasopressin 20 U in 100 mL normal saline, injected below the vascular pseudocapsule, causes vasoconstriction of capillaries and small arterioles and venules and can reduce blood loss by 246 mL per case.12 Intravascular injection should be avoided because rare cases of bradycardia and cardiovascular collapse have been reported.13 Using vasopressin to decrease blood loss during myomectomy is an off-label use of this drug.

Place a tourniquet around the lower uterine segment, including the infundibular pelvic ligaments. Tourniquet use is the most effective way to decrease blood loss during myomectomy, since it can reduce blood loss by 1,870 mL.12 For women who wish to preserve fertility, take care to ensure that the tourniquet does not compromise the tubes. For women who are certain they do not want to preserve fertility, discuss the possibility of performing bilateral salpingectomy to decrease the risk of subsequent tubal (“ovarian”) cancer.

Some surgeons incise the broad ligaments bilaterally and pass the tourniquet through the broad ligaments to avoid compromising blood flow to the ovaries. Occluding the utero- ovarian ligaments with bulldog clamps to control collateral blood flow from the ovarian artery has been described, but the clamps can tear these often enlarged and fragile uterine veins during manipulation of the uterus. Release the tourniquet every 15 to 30 minutes to allow reperfusion of the ovaries. In women with ovarian torsion lasting hours to days, the ovary has been found to resist hypoxia and recover function.14 Antral follicle counts of detorsed and contralateral normal ovaries following a mean of 13 hours of hypoxia are similar 3 months following detorsion.15

Consider blood salvage. For women with multiple or very large fibroids, consider using a salvage-type autologous blood transfusion device, which has been shown to reduce the need for heterologous blood transfusion.16 This device suctions blood from the operative field, mixes it with heparinized saline, and stores the blood in a canister (FIGURE 2). If the patient requires blood reinfusion, the stored blood is washed with saline, filtered, centrifuged, and given back to the patient intravenously. Blood salvage, or cell salvage, avoids the risks of infection and transfusion reaction, and the oxygen transport capacity of salvaged red blood cells is equal to or better than that of stored allogeneic red cells.

Used with permission.
Pictured, Cell Saver 5 Autologous Blood Recovery System, Haemonetics

Additional surgical considerations

Previous teaching suggested that proper placement of the uterine incisions was an important factor in limiting blood loss. Some authors suggested that vertical uterine incisions would avoid injury to the ascending uterine vessels should inadvertent extension of the incision occur. Other authors proposed horizontal uterine incisions to avoid severing the arcuate vessels that branch off from the ascending uterine arteries and run transversely across the uterus. However, since fibroids distort the normal vascular architecture, it is not possible to entirely avoid severing vessels in the myometrium (FIGURE 3).17 Uterine incisions can therefore be made as needed based on the position of the fibroids and the need to avoid inadvertent extension to the ascending uterine vessels or cornua.17

Used with permission.

Fibroid anatomy and vascularity. Fibroids are entirely encased within the dense blood supply of a pseudocapsule (FIGURE 4),18 and no distinct “vascular pedicle” exists at the base of the fibroid.19 It is therefore important to extend the uterine incisions down through the entire pseudocapsule until the fibroid is clearly visible. This will identify a less vascular surgical plane, which is deeper than commonly recognized. Once the fibroid is reached, the pseudocapsule can be “wiped away” using a dry laparotomy sponge (see VIDEO 3). Staying under the pseudocapsule reduces bleeding and may preserve the tissue growth factors and neurotransmitters that are thought to promote wound healing.20

Used with permission.

Adhesion prevention. Limiting the number of uterine incisions has been suggested as a way to reduce the risk of postoperative pelvic adhesions. To extract fibroids that are distant from an incision, however, tunnels must be created within the myometrium, and this makes hemostasis within these defects difficult. In that blood increases the risk of adhesion formation, tunneling may be counterproductive. If tunneling incisions are avoided and hemostasis is secured immediately, the risk of adhesion formation should be lessened.

Therefore, make incisions directly over the fibroids. Remove only easily accessed fibroids and promptly close the defects to secure hemostasis. Multiple uterine incisions may be needed; adhesion barriers may help limit adhesion formation.21

On final removal of the tourniquet, carefully inspect for bleeding and perform any necessary re-suturing. We place a pain pump (ON-Q* Pain Relief System, Halyard Health, Inc) for pain management and close the abdominal incision in the standard manner.

Read about postoperative care

 

 

Postoperative care: Manage pain, restore function

The pain pump infuser, attached to one soaker catheter above and one below the fascia, provides continuous infusion of bupivacaine to the incision at 4 mL per hour for 4 days. The pain pump greatly reduces the need for postoperative opioids.22 Use of a patient-controlled analgesia pump, with its associated adverse effects (sedation, need for oxygen saturation monitoring, slowing of bowel function) can thus be avoided. The patient’s residual pain is controlled with oral oxycodone or hydrocodone and scheduled nonsteroidal anti-inflammatory drugs.

In my practice, we use an enhanced recovery after surgery (ERAS) protocol designed to reduce postoperative surgical stress and expedite a return to baseline physiologic body functions.23 Excellent well-researched, evidence-based studies support the effectiveness of ERAS in gynecologic and general surgery procedures.24

Pre-emptive, preoperative analgesia (gabapentin and celecoxib) and end-of-case IV acetaminophen are given to reduce the inflammatory response and the need for postoperative opioids. Once it is confirmed that the patient is hemodynamically stable, add ketorolac 30 mg IV every 6 hours on postoperative day 1. Nausea and vomiting prophylaxis includes ondansetron and dexamethasone at the end of surgery, avoidance of bowel edema with restriction of intraoperative and postoperative fluids (euvolemia), early oral feeding, and gum chewing. On the evening of surgery, the urinary catheter is removed to reduce the risk of bladder infection and facilitate ambulation. Encourage sitting at the bedside and early ambulation starting the evening of surgery to reduce risk of thromboembolism and to avoid skeletal muscle weakness and postoperative fatigue.

Most women are able to be discharged on postoperative day 2. They return to the office on postoperative day 5 for removal of the pain pump.

CASE Continued: Fibroids removed via abdominal myomectomy

We performed an abdominal myomectomy through a Pfannenstiel incision. Nine fibroids—3 of which were not seen on MRI—ranging in size from 1 to 7 cm were removed. Intravaginal misoprostol, IV tranexamic acid, subserosal vasopressin, and a uterine vessel tourniquet limited the intraoperative blood loss to 225 mL. After surgery, a pain pump and ERAS protocol allowed the patient to be discharged on postoperative day 2, and she returned to the office on day 5 for removal of the pain pump. Oral pain medication was continued on an as-needed basis.

WATCH FORpart 3 of this 3-part series, in which Dr. Parker provides pearls for laparoscopic myomectomy technique. .

Acknowledgement

The author would like to thank Stanley West, MD, for generously teaching him the surgical techniques for performing abdominal myomectomy.

 


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References
  1. Wright JD, Herzog TJ, Tsui J, et al. Nationwide trends in the performance of inpatient hysterectomy in the United States. Obstet Gynecol. 2013;122(2 pt 1):233–241.
  2. Barrett ML, Weiss AJ, Stocks C, Steiner CA, Myers ER. Statistical brief 200. Procedures to treat benign uterine fibroids in hospital inpatient and hospital-based ambulatory surgery settings, 2013. Healthcare Cost and Utilization Project website. https://www.hcup-us.ahrq.gov/reports/statbriefs/sb200-Procedures-Treat-Uterine-Fibroids.jsp. Published January 2016. Accessed February 9, 2017.
  3. Stentz NC, Cooney L, Sammel MD, Shah DK. Impact of the Food and Drug Administration (FDA) safety communication on morcellation on surgical practice and perioperative morbidity following myomectomy [abstract p300]. Fertil Steril. 2016;106(3 suppl):e219.
  4. Hillis SD, Marchbanks PA, Peterson HB. Obstet Gynecol. 1996;87(4):539–543.
  5. Pritts E, Vanness D, Berek JS, et al. The prevalence of occult leiomyosarcoma at surgery for presumed uterine fibroids: a meta-analysis. Gynecol Surg. 2015;12(3):165–177.
  6. Bogani G, Cliby WA, Aletti GD. Impact of morcellation on survival outcomes of patients with unexpected uterine leiomyosarcoma: a systematic review and meta-analysis. Gynecol Oncol. 2015;137(1):167–172.
  7. Dilek S, Ertunc D, Tok EC, Cimen R, Doruk A. The effect of myomectomy on health-related quality of life of women with myoma uteri. J Obstet Gynaecol Res. 2010;36(2):364–369.
  8. Pundir J, Walawalkar R, Seshadri S, Khalaf Y, El-Toukhy T. Perioperative morbidity associated with abdominal myomectomy compared with total abdominal hysterectomy for uterine fibroids. J Obstet Gynaecol. 2013;33(7):655–662.
  9. West S, Ruiz R, Parker WH. Abdominal myomectomy in women with very large uterine size. Fertil Steril. 2006;85(1):36–39.
  10. Dueholm M, Lundorf E, Hansen ES, Ledertoug S, Olesen F. Evaluation of the uterine cavity with magnetic resonance imaging, transvaginal sonography, hysterosonographic examination, and diagnostic hysteroscopy. Fertil Steril. 2001;76(2):350–357.
  11. Kim YH, Chung HH, Kang SB, Kim SC, Kim YT. Safety and usefulness of intravenous iron sucrose in the management of preoperative anemia in patients with menorrhagia: a phase IV, open-label, prospective, randomized study. Acta Haematol. 2009;121(1):37–41.
  12. Kongnyuy EJ, Wiysonge CS. Interventions to reduce haemorrhage during myomectomy for fibroids. Cochrane Database Syst Rev. 2014 Aug 15;(8):CD005355.
  13. Hobo R, Netsu S, Koyasu Y, Tsutsumi O. Bradycardia and cardiac arrest caused by intramyometrial injection of vasopressin during a laparoscopically assisted myomectomy. Obstet Gynecol. 2009;113(2 pt 2):484–486.
  14. Oelsner G, Cohen SB, Soriano D, Admon D, Mashiach S, Carp H. Minimal surgery for the twisted ischaemic adnexa can preserve ovarian function. Hum Reprod. 2003;18(12):2599–2602.
  15. Yasa C, Dural O, Bastu E, Zorlu M, Demir O, Ugurlucan FG. Impact of laparoscopic ovarian detorsion on ovarian reserve. J Obstet Gynaecol Res. 2017;43(2):298–302.
  16. Yamada T, Ikeda A, Okamoto Y, Okamoto Y, Kanda T, Ueki M. Intraoperative blood salvage in abdominal simple total hysterectomy for uterine myoma. Int J Gynaecol Obstet. 1997;59(3):233–236.
  17. Discepola F, Valenti DA, Reinhold C, Tulandi T. Analysis of arterial blood vessels surrounding the myoma: relevance to myomectomy. Obstet Gynecol. 2007;110(6):1301–1303.
  18. Malavasi A, Cavalotti C, Nicolardi G, et al. The opioid neuropeptides in uterine fibroid pseudocapsules: a putative association with cervical integrity in human reproduction. Gynecol Endocrinol. 2013;29(11):982–988.
  19. Walocha JA, Litwin JA, Miodonski AJ. Vascular system of intramural leiomyomata revealed by corrosion casting and scanning electron microscopy. Hum Reprod. 2003;18(5):1088–1093.
  20. Tinelli A, Mynbaev OA, Sparic R, et al. Angiogenesis and vascularization of uterine leiomyoma: clinical value of pseudocapsule containing peptides and neurotransmitters [published online ahead of print March 22, 2016]. Curr Protein Pept Sci. doi:10.2174/1389203717666160322150338.
  21. Diamond MP. Reduction of adhesions after uterine myomectomy by Seprafilm membrane (HAL-F): a blinded, prospective, randomized, multicenter clinical study. Seprafilm Adhesion Study Group. Fertil Steril. 1996;66(6):904–910.
  22. Liu SS, Richman JM, Thirlby RC, Wu CL. Efficacy of continuous wound catheters delivering local anesthetic for postoperative analgesia: a quantitative and qualitative systematic review of randomized controlled trials. J Am Coll Surg. 2006;203(6):914–932.
  23. Lassen K, Soop M, Nygren J, et al; Enhanced Recovery After Surgery (ERAS) Group. Consensus review of optimal perioperative care in colorectal surgery: Enhanced Recovery After Surgery (ERAS) Group recommendations. Arch Surg. 2009;144(10):961–969.
  24. Kalogera E, Bakkum-Gamez JN, Jankowski CJ, et al. Enhanced recovery in gynecologic surgery. Obstet Gynecol. 2013;122(2 pt 1):319–328.
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The author reports no financial relationships relevant to this article.

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Myomectomy is appropriate for many women with uterine fibroids. Here, guidance on abdominal myomectomy, including intraoperative technique, controlling blood loss, and postoperative care.
Myomectomy is appropriate for many women with uterine fibroids. Here, guidance on abdominal myomectomy, including intraoperative technique, controlling blood loss, and postoperative care.

CASE Woman with fibroids seeks alternative to hysterectomy

A 42-year-old woman (G2P2) presents to the office for evaluation of heavy menstrual bleeding and known uterine fibroids. Physical examination reveals a 16-week-sized uterus, and ultrasonography shows at least 6 fibroids, 2 of which impinge on the uterine cavity. She does not want to have any more children, but she wishes to avoid a hysterectomy.

Abdominal myomectomy: A good option for many women

Abdominal myomectomy is an underutilized procedure. With fibroids as the indication for surgery, 197,000 hysterectomies were performed in the United States in 2010, compared with approximately 40,000 myomectomies.1,2 Moreover, the rates of both laparoscopic and abdominal myomectomy have decreased following the controversial morcellation advisory issued by the US Food and Drug Administration.3

The differences in the hysterectomy and myomectomy rates might be explained by the many myths ascribed to myomectomy. Such myths include the beliefs that myomectomy, when compared with hysterectomy, is associated with greater risk of visceral injury, more blood loss, poor uterine healing, and high risk of fibroid recurrence, and that myomectomy is unlikely to improve patient symptoms.

Studies show, however, that these beliefs are wrong. The risk of needing treatment for new fibroid growth following myomectomy is low.4 Hysterectomy, compared with myomectomy for similar size uteri, is actually associated with a greater risk of injury to the bowel, bladder, and ureters and with a greater risk of operative hemorrhage. Furthermore, hysterectomy (without oophorectomy) can be associated with early menopause in approximately 10% of women, while myomectomy does not alter ovarian hormones. (See “7 Myomectomy myths debunked,” which appeared in the February 2017 issue of OBG Management.) Another myth debunked: Fibroids do not “degenerate” into leiomyosarcomas, and the risk of leiomyosarcoma in premenopausal women with presumed uterine fibroids is extremely low.5,6

For women who have serious medical problems (severe anemia, ureteral obstruction) due to uterine fibroids, surgery usually is necessary. In addition, women may request surgery for fibroid-associated quality-of-life concerns, such as heavy menstrual bleeding, infertility, pelvic pressure, urinary frequency, or incontinence. In one prospective study, the authors found that when women were assessed 6 months after undergoing myomectomy, 75% reported experiencing a significant decrease in bothersome symptoms.7

Myomectomy may be considered even for women with large uterine fibroids who desire uterine conservation. In a systematic review of the perioperative morbidity associated with abdominal myomectomy compared with abdominal hysterectomy for fibroids, which included 1,520 women with uterine size up to 16 to 18 weeks, no difference was found in major morbidity rates.8 Investigators who studied 91 women with uterine size ranging from 16 to 36 weeks who underwent abdominal myomectomy reported 1 bowel injury, 1 bladder injury, and 1 reoperation for bowel obstruction; no women had conversion to hysterectomy.9

Since ObGyn residency training emphasizes hysterectomy techniques, many residents receive only limited exposure to myomectomy procedures. Increased exposure to and comfort with myomectomy surgical technique would encourage more gynecologists to offer this option to their patients who desire uterine conservation, including those who do not desire future childbearing.

Imaging techniques are essential in the preoperative evaluation

For women with fibroid-related symptoms who desire surgery with uterine preservation, determining the myomectomy approach (abdominal, laparoscopic/robotic, hysteroscopic) depends on accurate assessment of the size, number, and position of the fibroids. If abdominal myomectomy is planned because of uterine size, the presence of numerous fibroids, or patient choice, transvaginal/transabdominal ultrasonography usually is adequate for anticipating what will be found during surgery. Sonography is readily available and is the least costly imaging technique that can help differentiate fibroids from other pelvic pathology. Although small fibroids may not be seen on sonography, they can be palpated and removed at the time of open surgery.

If submucous fibroids need to be better defined, saline-infusion sonography can be performed. However, if laparoscopic/robotic myomectomy (which precludes accurate palpation during surgery) is being considered, magnetic resonance imaging (MRI) allows the best assessment of the size, number, and position of the fibroids.10 When adenomyosis is considered in the differential diagnosis, MRI is an accurate way to determine its presence and helps in planning the best surgical procedure and approach.

Correct anemia before surgery

Women with fibroids may have anemia requiring correction before surgery to reduce the need for intraoperative or postoperative blood transfusion. Mild iron deficiency anemia can be treated prior to surgery with oral elemental iron 150 to 200 mg per day. Vitamin C 1,000 mg per day helps to increase intestinal iron absorption. Three weeks of treatment with oral iron can increase hemoglobin concentration by 2 g/dL.

For more severe anemia or rapid correction of anemia, intravenous (IV) iron sucrose infusions, 200 mg infused over 2 hours and given 3 times per week for 3 weeks, can increase hemoglobin by 3 g/dL.11 In our ObGyn practice, hematologists manage iron infusions.

Read about abdominal incision technique

 

 

Abdominal incision technique

Even a large uterus with multiple fibroids usually can be managed through use of a transverse lower abdominal incision. Prior to reaching the lateral borders of the rectus abdominis, curve the fascial incision cephalad to avoid injury to the ileoinguinal nerves (FIGURE 1). Detaching the midline rectus fascia (linea alba) from the anterior abdominal wall, starting at the pubic symphysis and continuing up to the umbilicus, frees the rectus muscles and allows them to be easily separated (see VIDEO 1). Since fascia is not elastic, these 2 steps are important to allow more room to deliver the uterus through the incision.

Illustration: Marcia Hartsock for OBG Management

Delivery of the uterus through the incision isolates the surgical field from the bowel, bladder, ureters, and pelvic nerves. Once the uterus is delivered, inspect and palpate it for fibroids. Identify the fundus and the position of the uterine cavity by locating both uterine cornua and imagining a straight line between them. It may be necessary to explore the endometrial cavity to look for and remove submucous fibroids. Then plan the necessary uterine incisions for removing all fibroids (see VIDEO 2).

Read about managing blood loss

 

 

4 approaches to managing intraoperative blood loss

In my practice, we employ misoprostol, tranexamic acid, vasopressin, and a uterine and ovarian vessel tourniquet to manage intraoperative blood loss.12 Although no data exist to show that using these methods together is advantageous, they have different mechanisms of action and no negative interactions.

Misoprostol 400 μg inserted vaginally 2 hours before surgery induces myometrial contraction and compression of the uterine vessels. This agent can reduce blood loss by 98 mL per case.12

Tranexamic acid, an antifibrinolytic, is given IV piggyback at the start of surgery at a dose of 10 mg/kg; it can reduce blood loss by 243 mL per case.12

Vasopressin 20 U in 100 mL normal saline, injected below the vascular pseudocapsule, causes vasoconstriction of capillaries and small arterioles and venules and can reduce blood loss by 246 mL per case.12 Intravascular injection should be avoided because rare cases of bradycardia and cardiovascular collapse have been reported.13 Using vasopressin to decrease blood loss during myomectomy is an off-label use of this drug.

Place a tourniquet around the lower uterine segment, including the infundibular pelvic ligaments. Tourniquet use is the most effective way to decrease blood loss during myomectomy, since it can reduce blood loss by 1,870 mL.12 For women who wish to preserve fertility, take care to ensure that the tourniquet does not compromise the tubes. For women who are certain they do not want to preserve fertility, discuss the possibility of performing bilateral salpingectomy to decrease the risk of subsequent tubal (“ovarian”) cancer.

Some surgeons incise the broad ligaments bilaterally and pass the tourniquet through the broad ligaments to avoid compromising blood flow to the ovaries. Occluding the utero- ovarian ligaments with bulldog clamps to control collateral blood flow from the ovarian artery has been described, but the clamps can tear these often enlarged and fragile uterine veins during manipulation of the uterus. Release the tourniquet every 15 to 30 minutes to allow reperfusion of the ovaries. In women with ovarian torsion lasting hours to days, the ovary has been found to resist hypoxia and recover function.14 Antral follicle counts of detorsed and contralateral normal ovaries following a mean of 13 hours of hypoxia are similar 3 months following detorsion.15

Consider blood salvage. For women with multiple or very large fibroids, consider using a salvage-type autologous blood transfusion device, which has been shown to reduce the need for heterologous blood transfusion.16 This device suctions blood from the operative field, mixes it with heparinized saline, and stores the blood in a canister (FIGURE 2). If the patient requires blood reinfusion, the stored blood is washed with saline, filtered, centrifuged, and given back to the patient intravenously. Blood salvage, or cell salvage, avoids the risks of infection and transfusion reaction, and the oxygen transport capacity of salvaged red blood cells is equal to or better than that of stored allogeneic red cells.

Used with permission.
Pictured, Cell Saver 5 Autologous Blood Recovery System, Haemonetics

Additional surgical considerations

Previous teaching suggested that proper placement of the uterine incisions was an important factor in limiting blood loss. Some authors suggested that vertical uterine incisions would avoid injury to the ascending uterine vessels should inadvertent extension of the incision occur. Other authors proposed horizontal uterine incisions to avoid severing the arcuate vessels that branch off from the ascending uterine arteries and run transversely across the uterus. However, since fibroids distort the normal vascular architecture, it is not possible to entirely avoid severing vessels in the myometrium (FIGURE 3).17 Uterine incisions can therefore be made as needed based on the position of the fibroids and the need to avoid inadvertent extension to the ascending uterine vessels or cornua.17

Used with permission.

Fibroid anatomy and vascularity. Fibroids are entirely encased within the dense blood supply of a pseudocapsule (FIGURE 4),18 and no distinct “vascular pedicle” exists at the base of the fibroid.19 It is therefore important to extend the uterine incisions down through the entire pseudocapsule until the fibroid is clearly visible. This will identify a less vascular surgical plane, which is deeper than commonly recognized. Once the fibroid is reached, the pseudocapsule can be “wiped away” using a dry laparotomy sponge (see VIDEO 3). Staying under the pseudocapsule reduces bleeding and may preserve the tissue growth factors and neurotransmitters that are thought to promote wound healing.20

Used with permission.

Adhesion prevention. Limiting the number of uterine incisions has been suggested as a way to reduce the risk of postoperative pelvic adhesions. To extract fibroids that are distant from an incision, however, tunnels must be created within the myometrium, and this makes hemostasis within these defects difficult. In that blood increases the risk of adhesion formation, tunneling may be counterproductive. If tunneling incisions are avoided and hemostasis is secured immediately, the risk of adhesion formation should be lessened.

Therefore, make incisions directly over the fibroids. Remove only easily accessed fibroids and promptly close the defects to secure hemostasis. Multiple uterine incisions may be needed; adhesion barriers may help limit adhesion formation.21

On final removal of the tourniquet, carefully inspect for bleeding and perform any necessary re-suturing. We place a pain pump (ON-Q* Pain Relief System, Halyard Health, Inc) for pain management and close the abdominal incision in the standard manner.

Read about postoperative care

 

 

Postoperative care: Manage pain, restore function

The pain pump infuser, attached to one soaker catheter above and one below the fascia, provides continuous infusion of bupivacaine to the incision at 4 mL per hour for 4 days. The pain pump greatly reduces the need for postoperative opioids.22 Use of a patient-controlled analgesia pump, with its associated adverse effects (sedation, need for oxygen saturation monitoring, slowing of bowel function) can thus be avoided. The patient’s residual pain is controlled with oral oxycodone or hydrocodone and scheduled nonsteroidal anti-inflammatory drugs.

In my practice, we use an enhanced recovery after surgery (ERAS) protocol designed to reduce postoperative surgical stress and expedite a return to baseline physiologic body functions.23 Excellent well-researched, evidence-based studies support the effectiveness of ERAS in gynecologic and general surgery procedures.24

Pre-emptive, preoperative analgesia (gabapentin and celecoxib) and end-of-case IV acetaminophen are given to reduce the inflammatory response and the need for postoperative opioids. Once it is confirmed that the patient is hemodynamically stable, add ketorolac 30 mg IV every 6 hours on postoperative day 1. Nausea and vomiting prophylaxis includes ondansetron and dexamethasone at the end of surgery, avoidance of bowel edema with restriction of intraoperative and postoperative fluids (euvolemia), early oral feeding, and gum chewing. On the evening of surgery, the urinary catheter is removed to reduce the risk of bladder infection and facilitate ambulation. Encourage sitting at the bedside and early ambulation starting the evening of surgery to reduce risk of thromboembolism and to avoid skeletal muscle weakness and postoperative fatigue.

Most women are able to be discharged on postoperative day 2. They return to the office on postoperative day 5 for removal of the pain pump.

CASE Continued: Fibroids removed via abdominal myomectomy

We performed an abdominal myomectomy through a Pfannenstiel incision. Nine fibroids—3 of which were not seen on MRI—ranging in size from 1 to 7 cm were removed. Intravaginal misoprostol, IV tranexamic acid, subserosal vasopressin, and a uterine vessel tourniquet limited the intraoperative blood loss to 225 mL. After surgery, a pain pump and ERAS protocol allowed the patient to be discharged on postoperative day 2, and she returned to the office on day 5 for removal of the pain pump. Oral pain medication was continued on an as-needed basis.

WATCH FORpart 3 of this 3-part series, in which Dr. Parker provides pearls for laparoscopic myomectomy technique. .

Acknowledgement

The author would like to thank Stanley West, MD, for generously teaching him the surgical techniques for performing abdominal myomectomy.

 


Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

CASE Woman with fibroids seeks alternative to hysterectomy

A 42-year-old woman (G2P2) presents to the office for evaluation of heavy menstrual bleeding and known uterine fibroids. Physical examination reveals a 16-week-sized uterus, and ultrasonography shows at least 6 fibroids, 2 of which impinge on the uterine cavity. She does not want to have any more children, but she wishes to avoid a hysterectomy.

Abdominal myomectomy: A good option for many women

Abdominal myomectomy is an underutilized procedure. With fibroids as the indication for surgery, 197,000 hysterectomies were performed in the United States in 2010, compared with approximately 40,000 myomectomies.1,2 Moreover, the rates of both laparoscopic and abdominal myomectomy have decreased following the controversial morcellation advisory issued by the US Food and Drug Administration.3

The differences in the hysterectomy and myomectomy rates might be explained by the many myths ascribed to myomectomy. Such myths include the beliefs that myomectomy, when compared with hysterectomy, is associated with greater risk of visceral injury, more blood loss, poor uterine healing, and high risk of fibroid recurrence, and that myomectomy is unlikely to improve patient symptoms.

Studies show, however, that these beliefs are wrong. The risk of needing treatment for new fibroid growth following myomectomy is low.4 Hysterectomy, compared with myomectomy for similar size uteri, is actually associated with a greater risk of injury to the bowel, bladder, and ureters and with a greater risk of operative hemorrhage. Furthermore, hysterectomy (without oophorectomy) can be associated with early menopause in approximately 10% of women, while myomectomy does not alter ovarian hormones. (See “7 Myomectomy myths debunked,” which appeared in the February 2017 issue of OBG Management.) Another myth debunked: Fibroids do not “degenerate” into leiomyosarcomas, and the risk of leiomyosarcoma in premenopausal women with presumed uterine fibroids is extremely low.5,6

For women who have serious medical problems (severe anemia, ureteral obstruction) due to uterine fibroids, surgery usually is necessary. In addition, women may request surgery for fibroid-associated quality-of-life concerns, such as heavy menstrual bleeding, infertility, pelvic pressure, urinary frequency, or incontinence. In one prospective study, the authors found that when women were assessed 6 months after undergoing myomectomy, 75% reported experiencing a significant decrease in bothersome symptoms.7

Myomectomy may be considered even for women with large uterine fibroids who desire uterine conservation. In a systematic review of the perioperative morbidity associated with abdominal myomectomy compared with abdominal hysterectomy for fibroids, which included 1,520 women with uterine size up to 16 to 18 weeks, no difference was found in major morbidity rates.8 Investigators who studied 91 women with uterine size ranging from 16 to 36 weeks who underwent abdominal myomectomy reported 1 bowel injury, 1 bladder injury, and 1 reoperation for bowel obstruction; no women had conversion to hysterectomy.9

Since ObGyn residency training emphasizes hysterectomy techniques, many residents receive only limited exposure to myomectomy procedures. Increased exposure to and comfort with myomectomy surgical technique would encourage more gynecologists to offer this option to their patients who desire uterine conservation, including those who do not desire future childbearing.

Imaging techniques are essential in the preoperative evaluation

For women with fibroid-related symptoms who desire surgery with uterine preservation, determining the myomectomy approach (abdominal, laparoscopic/robotic, hysteroscopic) depends on accurate assessment of the size, number, and position of the fibroids. If abdominal myomectomy is planned because of uterine size, the presence of numerous fibroids, or patient choice, transvaginal/transabdominal ultrasonography usually is adequate for anticipating what will be found during surgery. Sonography is readily available and is the least costly imaging technique that can help differentiate fibroids from other pelvic pathology. Although small fibroids may not be seen on sonography, they can be palpated and removed at the time of open surgery.

If submucous fibroids need to be better defined, saline-infusion sonography can be performed. However, if laparoscopic/robotic myomectomy (which precludes accurate palpation during surgery) is being considered, magnetic resonance imaging (MRI) allows the best assessment of the size, number, and position of the fibroids.10 When adenomyosis is considered in the differential diagnosis, MRI is an accurate way to determine its presence and helps in planning the best surgical procedure and approach.

Correct anemia before surgery

Women with fibroids may have anemia requiring correction before surgery to reduce the need for intraoperative or postoperative blood transfusion. Mild iron deficiency anemia can be treated prior to surgery with oral elemental iron 150 to 200 mg per day. Vitamin C 1,000 mg per day helps to increase intestinal iron absorption. Three weeks of treatment with oral iron can increase hemoglobin concentration by 2 g/dL.

For more severe anemia or rapid correction of anemia, intravenous (IV) iron sucrose infusions, 200 mg infused over 2 hours and given 3 times per week for 3 weeks, can increase hemoglobin by 3 g/dL.11 In our ObGyn practice, hematologists manage iron infusions.

Read about abdominal incision technique

 

 

Abdominal incision technique

Even a large uterus with multiple fibroids usually can be managed through use of a transverse lower abdominal incision. Prior to reaching the lateral borders of the rectus abdominis, curve the fascial incision cephalad to avoid injury to the ileoinguinal nerves (FIGURE 1). Detaching the midline rectus fascia (linea alba) from the anterior abdominal wall, starting at the pubic symphysis and continuing up to the umbilicus, frees the rectus muscles and allows them to be easily separated (see VIDEO 1). Since fascia is not elastic, these 2 steps are important to allow more room to deliver the uterus through the incision.

Illustration: Marcia Hartsock for OBG Management

Delivery of the uterus through the incision isolates the surgical field from the bowel, bladder, ureters, and pelvic nerves. Once the uterus is delivered, inspect and palpate it for fibroids. Identify the fundus and the position of the uterine cavity by locating both uterine cornua and imagining a straight line between them. It may be necessary to explore the endometrial cavity to look for and remove submucous fibroids. Then plan the necessary uterine incisions for removing all fibroids (see VIDEO 2).

Read about managing blood loss

 

 

4 approaches to managing intraoperative blood loss

In my practice, we employ misoprostol, tranexamic acid, vasopressin, and a uterine and ovarian vessel tourniquet to manage intraoperative blood loss.12 Although no data exist to show that using these methods together is advantageous, they have different mechanisms of action and no negative interactions.

Misoprostol 400 μg inserted vaginally 2 hours before surgery induces myometrial contraction and compression of the uterine vessels. This agent can reduce blood loss by 98 mL per case.12

Tranexamic acid, an antifibrinolytic, is given IV piggyback at the start of surgery at a dose of 10 mg/kg; it can reduce blood loss by 243 mL per case.12

Vasopressin 20 U in 100 mL normal saline, injected below the vascular pseudocapsule, causes vasoconstriction of capillaries and small arterioles and venules and can reduce blood loss by 246 mL per case.12 Intravascular injection should be avoided because rare cases of bradycardia and cardiovascular collapse have been reported.13 Using vasopressin to decrease blood loss during myomectomy is an off-label use of this drug.

Place a tourniquet around the lower uterine segment, including the infundibular pelvic ligaments. Tourniquet use is the most effective way to decrease blood loss during myomectomy, since it can reduce blood loss by 1,870 mL.12 For women who wish to preserve fertility, take care to ensure that the tourniquet does not compromise the tubes. For women who are certain they do not want to preserve fertility, discuss the possibility of performing bilateral salpingectomy to decrease the risk of subsequent tubal (“ovarian”) cancer.

Some surgeons incise the broad ligaments bilaterally and pass the tourniquet through the broad ligaments to avoid compromising blood flow to the ovaries. Occluding the utero- ovarian ligaments with bulldog clamps to control collateral blood flow from the ovarian artery has been described, but the clamps can tear these often enlarged and fragile uterine veins during manipulation of the uterus. Release the tourniquet every 15 to 30 minutes to allow reperfusion of the ovaries. In women with ovarian torsion lasting hours to days, the ovary has been found to resist hypoxia and recover function.14 Antral follicle counts of detorsed and contralateral normal ovaries following a mean of 13 hours of hypoxia are similar 3 months following detorsion.15

Consider blood salvage. For women with multiple or very large fibroids, consider using a salvage-type autologous blood transfusion device, which has been shown to reduce the need for heterologous blood transfusion.16 This device suctions blood from the operative field, mixes it with heparinized saline, and stores the blood in a canister (FIGURE 2). If the patient requires blood reinfusion, the stored blood is washed with saline, filtered, centrifuged, and given back to the patient intravenously. Blood salvage, or cell salvage, avoids the risks of infection and transfusion reaction, and the oxygen transport capacity of salvaged red blood cells is equal to or better than that of stored allogeneic red cells.

Used with permission.
Pictured, Cell Saver 5 Autologous Blood Recovery System, Haemonetics

Additional surgical considerations

Previous teaching suggested that proper placement of the uterine incisions was an important factor in limiting blood loss. Some authors suggested that vertical uterine incisions would avoid injury to the ascending uterine vessels should inadvertent extension of the incision occur. Other authors proposed horizontal uterine incisions to avoid severing the arcuate vessels that branch off from the ascending uterine arteries and run transversely across the uterus. However, since fibroids distort the normal vascular architecture, it is not possible to entirely avoid severing vessels in the myometrium (FIGURE 3).17 Uterine incisions can therefore be made as needed based on the position of the fibroids and the need to avoid inadvertent extension to the ascending uterine vessels or cornua.17

Used with permission.

Fibroid anatomy and vascularity. Fibroids are entirely encased within the dense blood supply of a pseudocapsule (FIGURE 4),18 and no distinct “vascular pedicle” exists at the base of the fibroid.19 It is therefore important to extend the uterine incisions down through the entire pseudocapsule until the fibroid is clearly visible. This will identify a less vascular surgical plane, which is deeper than commonly recognized. Once the fibroid is reached, the pseudocapsule can be “wiped away” using a dry laparotomy sponge (see VIDEO 3). Staying under the pseudocapsule reduces bleeding and may preserve the tissue growth factors and neurotransmitters that are thought to promote wound healing.20

Used with permission.

Adhesion prevention. Limiting the number of uterine incisions has been suggested as a way to reduce the risk of postoperative pelvic adhesions. To extract fibroids that are distant from an incision, however, tunnels must be created within the myometrium, and this makes hemostasis within these defects difficult. In that blood increases the risk of adhesion formation, tunneling may be counterproductive. If tunneling incisions are avoided and hemostasis is secured immediately, the risk of adhesion formation should be lessened.

Therefore, make incisions directly over the fibroids. Remove only easily accessed fibroids and promptly close the defects to secure hemostasis. Multiple uterine incisions may be needed; adhesion barriers may help limit adhesion formation.21

On final removal of the tourniquet, carefully inspect for bleeding and perform any necessary re-suturing. We place a pain pump (ON-Q* Pain Relief System, Halyard Health, Inc) for pain management and close the abdominal incision in the standard manner.

Read about postoperative care

 

 

Postoperative care: Manage pain, restore function

The pain pump infuser, attached to one soaker catheter above and one below the fascia, provides continuous infusion of bupivacaine to the incision at 4 mL per hour for 4 days. The pain pump greatly reduces the need for postoperative opioids.22 Use of a patient-controlled analgesia pump, with its associated adverse effects (sedation, need for oxygen saturation monitoring, slowing of bowel function) can thus be avoided. The patient’s residual pain is controlled with oral oxycodone or hydrocodone and scheduled nonsteroidal anti-inflammatory drugs.

In my practice, we use an enhanced recovery after surgery (ERAS) protocol designed to reduce postoperative surgical stress and expedite a return to baseline physiologic body functions.23 Excellent well-researched, evidence-based studies support the effectiveness of ERAS in gynecologic and general surgery procedures.24

Pre-emptive, preoperative analgesia (gabapentin and celecoxib) and end-of-case IV acetaminophen are given to reduce the inflammatory response and the need for postoperative opioids. Once it is confirmed that the patient is hemodynamically stable, add ketorolac 30 mg IV every 6 hours on postoperative day 1. Nausea and vomiting prophylaxis includes ondansetron and dexamethasone at the end of surgery, avoidance of bowel edema with restriction of intraoperative and postoperative fluids (euvolemia), early oral feeding, and gum chewing. On the evening of surgery, the urinary catheter is removed to reduce the risk of bladder infection and facilitate ambulation. Encourage sitting at the bedside and early ambulation starting the evening of surgery to reduce risk of thromboembolism and to avoid skeletal muscle weakness and postoperative fatigue.

Most women are able to be discharged on postoperative day 2. They return to the office on postoperative day 5 for removal of the pain pump.

CASE Continued: Fibroids removed via abdominal myomectomy

We performed an abdominal myomectomy through a Pfannenstiel incision. Nine fibroids—3 of which were not seen on MRI—ranging in size from 1 to 7 cm were removed. Intravaginal misoprostol, IV tranexamic acid, subserosal vasopressin, and a uterine vessel tourniquet limited the intraoperative blood loss to 225 mL. After surgery, a pain pump and ERAS protocol allowed the patient to be discharged on postoperative day 2, and she returned to the office on day 5 for removal of the pain pump. Oral pain medication was continued on an as-needed basis.

WATCH FORpart 3 of this 3-part series, in which Dr. Parker provides pearls for laparoscopic myomectomy technique. .

Acknowledgement

The author would like to thank Stanley West, MD, for generously teaching him the surgical techniques for performing abdominal myomectomy.

 


Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

References
  1. Wright JD, Herzog TJ, Tsui J, et al. Nationwide trends in the performance of inpatient hysterectomy in the United States. Obstet Gynecol. 2013;122(2 pt 1):233–241.
  2. Barrett ML, Weiss AJ, Stocks C, Steiner CA, Myers ER. Statistical brief 200. Procedures to treat benign uterine fibroids in hospital inpatient and hospital-based ambulatory surgery settings, 2013. Healthcare Cost and Utilization Project website. https://www.hcup-us.ahrq.gov/reports/statbriefs/sb200-Procedures-Treat-Uterine-Fibroids.jsp. Published January 2016. Accessed February 9, 2017.
  3. Stentz NC, Cooney L, Sammel MD, Shah DK. Impact of the Food and Drug Administration (FDA) safety communication on morcellation on surgical practice and perioperative morbidity following myomectomy [abstract p300]. Fertil Steril. 2016;106(3 suppl):e219.
  4. Hillis SD, Marchbanks PA, Peterson HB. Obstet Gynecol. 1996;87(4):539–543.
  5. Pritts E, Vanness D, Berek JS, et al. The prevalence of occult leiomyosarcoma at surgery for presumed uterine fibroids: a meta-analysis. Gynecol Surg. 2015;12(3):165–177.
  6. Bogani G, Cliby WA, Aletti GD. Impact of morcellation on survival outcomes of patients with unexpected uterine leiomyosarcoma: a systematic review and meta-analysis. Gynecol Oncol. 2015;137(1):167–172.
  7. Dilek S, Ertunc D, Tok EC, Cimen R, Doruk A. The effect of myomectomy on health-related quality of life of women with myoma uteri. J Obstet Gynaecol Res. 2010;36(2):364–369.
  8. Pundir J, Walawalkar R, Seshadri S, Khalaf Y, El-Toukhy T. Perioperative morbidity associated with abdominal myomectomy compared with total abdominal hysterectomy for uterine fibroids. J Obstet Gynaecol. 2013;33(7):655–662.
  9. West S, Ruiz R, Parker WH. Abdominal myomectomy in women with very large uterine size. Fertil Steril. 2006;85(1):36–39.
  10. Dueholm M, Lundorf E, Hansen ES, Ledertoug S, Olesen F. Evaluation of the uterine cavity with magnetic resonance imaging, transvaginal sonography, hysterosonographic examination, and diagnostic hysteroscopy. Fertil Steril. 2001;76(2):350–357.
  11. Kim YH, Chung HH, Kang SB, Kim SC, Kim YT. Safety and usefulness of intravenous iron sucrose in the management of preoperative anemia in patients with menorrhagia: a phase IV, open-label, prospective, randomized study. Acta Haematol. 2009;121(1):37–41.
  12. Kongnyuy EJ, Wiysonge CS. Interventions to reduce haemorrhage during myomectomy for fibroids. Cochrane Database Syst Rev. 2014 Aug 15;(8):CD005355.
  13. Hobo R, Netsu S, Koyasu Y, Tsutsumi O. Bradycardia and cardiac arrest caused by intramyometrial injection of vasopressin during a laparoscopically assisted myomectomy. Obstet Gynecol. 2009;113(2 pt 2):484–486.
  14. Oelsner G, Cohen SB, Soriano D, Admon D, Mashiach S, Carp H. Minimal surgery for the twisted ischaemic adnexa can preserve ovarian function. Hum Reprod. 2003;18(12):2599–2602.
  15. Yasa C, Dural O, Bastu E, Zorlu M, Demir O, Ugurlucan FG. Impact of laparoscopic ovarian detorsion on ovarian reserve. J Obstet Gynaecol Res. 2017;43(2):298–302.
  16. Yamada T, Ikeda A, Okamoto Y, Okamoto Y, Kanda T, Ueki M. Intraoperative blood salvage in abdominal simple total hysterectomy for uterine myoma. Int J Gynaecol Obstet. 1997;59(3):233–236.
  17. Discepola F, Valenti DA, Reinhold C, Tulandi T. Analysis of arterial blood vessels surrounding the myoma: relevance to myomectomy. Obstet Gynecol. 2007;110(6):1301–1303.
  18. Malavasi A, Cavalotti C, Nicolardi G, et al. The opioid neuropeptides in uterine fibroid pseudocapsules: a putative association with cervical integrity in human reproduction. Gynecol Endocrinol. 2013;29(11):982–988.
  19. Walocha JA, Litwin JA, Miodonski AJ. Vascular system of intramural leiomyomata revealed by corrosion casting and scanning electron microscopy. Hum Reprod. 2003;18(5):1088–1093.
  20. Tinelli A, Mynbaev OA, Sparic R, et al. Angiogenesis and vascularization of uterine leiomyoma: clinical value of pseudocapsule containing peptides and neurotransmitters [published online ahead of print March 22, 2016]. Curr Protein Pept Sci. doi:10.2174/1389203717666160322150338.
  21. Diamond MP. Reduction of adhesions after uterine myomectomy by Seprafilm membrane (HAL-F): a blinded, prospective, randomized, multicenter clinical study. Seprafilm Adhesion Study Group. Fertil Steril. 1996;66(6):904–910.
  22. Liu SS, Richman JM, Thirlby RC, Wu CL. Efficacy of continuous wound catheters delivering local anesthetic for postoperative analgesia: a quantitative and qualitative systematic review of randomized controlled trials. J Am Coll Surg. 2006;203(6):914–932.
  23. Lassen K, Soop M, Nygren J, et al; Enhanced Recovery After Surgery (ERAS) Group. Consensus review of optimal perioperative care in colorectal surgery: Enhanced Recovery After Surgery (ERAS) Group recommendations. Arch Surg. 2009;144(10):961–969.
  24. Kalogera E, Bakkum-Gamez JN, Jankowski CJ, et al. Enhanced recovery in gynecologic surgery. Obstet Gynecol. 2013;122(2 pt 1):319–328.
References
  1. Wright JD, Herzog TJ, Tsui J, et al. Nationwide trends in the performance of inpatient hysterectomy in the United States. Obstet Gynecol. 2013;122(2 pt 1):233–241.
  2. Barrett ML, Weiss AJ, Stocks C, Steiner CA, Myers ER. Statistical brief 200. Procedures to treat benign uterine fibroids in hospital inpatient and hospital-based ambulatory surgery settings, 2013. Healthcare Cost and Utilization Project website. https://www.hcup-us.ahrq.gov/reports/statbriefs/sb200-Procedures-Treat-Uterine-Fibroids.jsp. Published January 2016. Accessed February 9, 2017.
  3. Stentz NC, Cooney L, Sammel MD, Shah DK. Impact of the Food and Drug Administration (FDA) safety communication on morcellation on surgical practice and perioperative morbidity following myomectomy [abstract p300]. Fertil Steril. 2016;106(3 suppl):e219.
  4. Hillis SD, Marchbanks PA, Peterson HB. Obstet Gynecol. 1996;87(4):539–543.
  5. Pritts E, Vanness D, Berek JS, et al. The prevalence of occult leiomyosarcoma at surgery for presumed uterine fibroids: a meta-analysis. Gynecol Surg. 2015;12(3):165–177.
  6. Bogani G, Cliby WA, Aletti GD. Impact of morcellation on survival outcomes of patients with unexpected uterine leiomyosarcoma: a systematic review and meta-analysis. Gynecol Oncol. 2015;137(1):167–172.
  7. Dilek S, Ertunc D, Tok EC, Cimen R, Doruk A. The effect of myomectomy on health-related quality of life of women with myoma uteri. J Obstet Gynaecol Res. 2010;36(2):364–369.
  8. Pundir J, Walawalkar R, Seshadri S, Khalaf Y, El-Toukhy T. Perioperative morbidity associated with abdominal myomectomy compared with total abdominal hysterectomy for uterine fibroids. J Obstet Gynaecol. 2013;33(7):655–662.
  9. West S, Ruiz R, Parker WH. Abdominal myomectomy in women with very large uterine size. Fertil Steril. 2006;85(1):36–39.
  10. Dueholm M, Lundorf E, Hansen ES, Ledertoug S, Olesen F. Evaluation of the uterine cavity with magnetic resonance imaging, transvaginal sonography, hysterosonographic examination, and diagnostic hysteroscopy. Fertil Steril. 2001;76(2):350–357.
  11. Kim YH, Chung HH, Kang SB, Kim SC, Kim YT. Safety and usefulness of intravenous iron sucrose in the management of preoperative anemia in patients with menorrhagia: a phase IV, open-label, prospective, randomized study. Acta Haematol. 2009;121(1):37–41.
  12. Kongnyuy EJ, Wiysonge CS. Interventions to reduce haemorrhage during myomectomy for fibroids. Cochrane Database Syst Rev. 2014 Aug 15;(8):CD005355.
  13. Hobo R, Netsu S, Koyasu Y, Tsutsumi O. Bradycardia and cardiac arrest caused by intramyometrial injection of vasopressin during a laparoscopically assisted myomectomy. Obstet Gynecol. 2009;113(2 pt 2):484–486.
  14. Oelsner G, Cohen SB, Soriano D, Admon D, Mashiach S, Carp H. Minimal surgery for the twisted ischaemic adnexa can preserve ovarian function. Hum Reprod. 2003;18(12):2599–2602.
  15. Yasa C, Dural O, Bastu E, Zorlu M, Demir O, Ugurlucan FG. Impact of laparoscopic ovarian detorsion on ovarian reserve. J Obstet Gynaecol Res. 2017;43(2):298–302.
  16. Yamada T, Ikeda A, Okamoto Y, Okamoto Y, Kanda T, Ueki M. Intraoperative blood salvage in abdominal simple total hysterectomy for uterine myoma. Int J Gynaecol Obstet. 1997;59(3):233–236.
  17. Discepola F, Valenti DA, Reinhold C, Tulandi T. Analysis of arterial blood vessels surrounding the myoma: relevance to myomectomy. Obstet Gynecol. 2007;110(6):1301–1303.
  18. Malavasi A, Cavalotti C, Nicolardi G, et al. The opioid neuropeptides in uterine fibroid pseudocapsules: a putative association with cervical integrity in human reproduction. Gynecol Endocrinol. 2013;29(11):982–988.
  19. Walocha JA, Litwin JA, Miodonski AJ. Vascular system of intramural leiomyomata revealed by corrosion casting and scanning electron microscopy. Hum Reprod. 2003;18(5):1088–1093.
  20. Tinelli A, Mynbaev OA, Sparic R, et al. Angiogenesis and vascularization of uterine leiomyoma: clinical value of pseudocapsule containing peptides and neurotransmitters [published online ahead of print March 22, 2016]. Curr Protein Pept Sci. doi:10.2174/1389203717666160322150338.
  21. Diamond MP. Reduction of adhesions after uterine myomectomy by Seprafilm membrane (HAL-F): a blinded, prospective, randomized, multicenter clinical study. Seprafilm Adhesion Study Group. Fertil Steril. 1996;66(6):904–910.
  22. Liu SS, Richman JM, Thirlby RC, Wu CL. Efficacy of continuous wound catheters delivering local anesthetic for postoperative analgesia: a quantitative and qualitative systematic review of randomized controlled trials. J Am Coll Surg. 2006;203(6):914–932.
  23. Lassen K, Soop M, Nygren J, et al; Enhanced Recovery After Surgery (ERAS) Group. Consensus review of optimal perioperative care in colorectal surgery: Enhanced Recovery After Surgery (ERAS) Group recommendations. Arch Surg. 2009;144(10):961–969.
  24. Kalogera E, Bakkum-Gamez JN, Jankowski CJ, et al. Enhanced recovery in gynecologic surgery. Obstet Gynecol. 2013;122(2 pt 1):319–328.
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Robotics: General surgery goes its own way

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HOUSTON – Subspecialties such as urology and gynecology have seen a steady increase in robot-assisted surgery and an offsetting decline in open procedures, but in general surgery, robot-assisted procedures seem to be making gains at the expense of laparoscopy, according to researchers from the University of Nebraska.

Dr. Priscila Rodrigues Armijo


This shift to RAS rather than laparoscopy could have significant implications because RAS is significantly more costly than laparoscopy, Dr. Armijo said. “In our study, the open procedures were the most expensive, followed by the robot-assisted surgeries and then laparoscopy,” she said. Median direct costs were $14,364 for open procedures, $11,376 for RAS and $7,945 for laparoscopy.

The Nebraska study retrospectively analyzed five different general surgery procedures: colectomy, cholecystectomy, and bariatric procedures in addition to VHR and IHR. The researchers analyzed 857,468 operations entered into the University HealthSystem Consortium Clinical Database Resource Manager from October 2008 to September 2015.

Dr. Armijo explained that the goal was to study trends in general surgery because while several studies have examined trends in urologic and gynecologic surgery, few studies have done so in general surgery.

All but the hernia repair procedures followed the trends seen in other subspecialties, Dr. Armijo said. Over the study period, the share of all minimally invasive surgeries that were RAS increased from fewer than 1% to about 7%, she said. In these procedures, RAS increased dramatically: from 0.4% to 8% in colectomy; 0.2 to 1.8% in cholecystectomy; and 0.6% to 5.4% in bariatric surgery.

“There was a significant increase in minimally invasive utilizations over time, and robotic surgery increased disproportionately compared to the laparoscope counterpart,” Dr. Armijo said. “And although we cannot prove where those patients are coming from, we believe that, especially for inguinal and ventral hernia repairs, they are coming from laparoscopic surgeons who now are adopting robotic techniques and not from open surgeons switching to the robotic approach.”

In 7 years, the study showed a significant decrease in the share of open procedures in colectomy (from 71.8% to 61.9%), cholecystectomy (35.7% to 27.1%), and bariatric surgery (20.1% to 10.1%), but an increase in both laparoscopic and RAS approaches in these surgeries.

However, in IHR, open procedures held steady at around 84% through the study period, while laparoscopic procedures declined from 12.6% to 10.8% and RAS jumped 3.1% to 4.5%. For VHR, the share of open procedures actually jumped from 80.9% to 85.2%, while the proportion of laparoscopic procedures fell from 18.9% to 11.9% and RAS operations jumped more than tenfold, from 0.2% to 2.9%.

“For ventral hernia repair there was a significant decrease in the laparoscopic approach with a significant increase in both open and robotic procedures, which may be due to new open techniques, including component separation, that have been shown to be more durable as a repair,” Dr. Armijo said. “In addition, those repair techniques are more easily performed with the robotic approach. Laparoscopic surgeons are finding that robotic technology is enabling them to execute surgical tasks, such as suturing mesh.”

Coauthor Dmitry Oleynikov, MD, FACS, disclosed he is a stockholder in Virtual Incision Corp. Dr. Armijo and other coauthors had no financial relationships to disclose.

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HOUSTON – Subspecialties such as urology and gynecology have seen a steady increase in robot-assisted surgery and an offsetting decline in open procedures, but in general surgery, robot-assisted procedures seem to be making gains at the expense of laparoscopy, according to researchers from the University of Nebraska.

Dr. Priscila Rodrigues Armijo


This shift to RAS rather than laparoscopy could have significant implications because RAS is significantly more costly than laparoscopy, Dr. Armijo said. “In our study, the open procedures were the most expensive, followed by the robot-assisted surgeries and then laparoscopy,” she said. Median direct costs were $14,364 for open procedures, $11,376 for RAS and $7,945 for laparoscopy.

The Nebraska study retrospectively analyzed five different general surgery procedures: colectomy, cholecystectomy, and bariatric procedures in addition to VHR and IHR. The researchers analyzed 857,468 operations entered into the University HealthSystem Consortium Clinical Database Resource Manager from October 2008 to September 2015.

Dr. Armijo explained that the goal was to study trends in general surgery because while several studies have examined trends in urologic and gynecologic surgery, few studies have done so in general surgery.

All but the hernia repair procedures followed the trends seen in other subspecialties, Dr. Armijo said. Over the study period, the share of all minimally invasive surgeries that were RAS increased from fewer than 1% to about 7%, she said. In these procedures, RAS increased dramatically: from 0.4% to 8% in colectomy; 0.2 to 1.8% in cholecystectomy; and 0.6% to 5.4% in bariatric surgery.

“There was a significant increase in minimally invasive utilizations over time, and robotic surgery increased disproportionately compared to the laparoscope counterpart,” Dr. Armijo said. “And although we cannot prove where those patients are coming from, we believe that, especially for inguinal and ventral hernia repairs, they are coming from laparoscopic surgeons who now are adopting robotic techniques and not from open surgeons switching to the robotic approach.”

In 7 years, the study showed a significant decrease in the share of open procedures in colectomy (from 71.8% to 61.9%), cholecystectomy (35.7% to 27.1%), and bariatric surgery (20.1% to 10.1%), but an increase in both laparoscopic and RAS approaches in these surgeries.

However, in IHR, open procedures held steady at around 84% through the study period, while laparoscopic procedures declined from 12.6% to 10.8% and RAS jumped 3.1% to 4.5%. For VHR, the share of open procedures actually jumped from 80.9% to 85.2%, while the proportion of laparoscopic procedures fell from 18.9% to 11.9% and RAS operations jumped more than tenfold, from 0.2% to 2.9%.

“For ventral hernia repair there was a significant decrease in the laparoscopic approach with a significant increase in both open and robotic procedures, which may be due to new open techniques, including component separation, that have been shown to be more durable as a repair,” Dr. Armijo said. “In addition, those repair techniques are more easily performed with the robotic approach. Laparoscopic surgeons are finding that robotic technology is enabling them to execute surgical tasks, such as suturing mesh.”

Coauthor Dmitry Oleynikov, MD, FACS, disclosed he is a stockholder in Virtual Incision Corp. Dr. Armijo and other coauthors had no financial relationships to disclose.

 

HOUSTON – Subspecialties such as urology and gynecology have seen a steady increase in robot-assisted surgery and an offsetting decline in open procedures, but in general surgery, robot-assisted procedures seem to be making gains at the expense of laparoscopy, according to researchers from the University of Nebraska.

Dr. Priscila Rodrigues Armijo


This shift to RAS rather than laparoscopy could have significant implications because RAS is significantly more costly than laparoscopy, Dr. Armijo said. “In our study, the open procedures were the most expensive, followed by the robot-assisted surgeries and then laparoscopy,” she said. Median direct costs were $14,364 for open procedures, $11,376 for RAS and $7,945 for laparoscopy.

The Nebraska study retrospectively analyzed five different general surgery procedures: colectomy, cholecystectomy, and bariatric procedures in addition to VHR and IHR. The researchers analyzed 857,468 operations entered into the University HealthSystem Consortium Clinical Database Resource Manager from October 2008 to September 2015.

Dr. Armijo explained that the goal was to study trends in general surgery because while several studies have examined trends in urologic and gynecologic surgery, few studies have done so in general surgery.

All but the hernia repair procedures followed the trends seen in other subspecialties, Dr. Armijo said. Over the study period, the share of all minimally invasive surgeries that were RAS increased from fewer than 1% to about 7%, she said. In these procedures, RAS increased dramatically: from 0.4% to 8% in colectomy; 0.2 to 1.8% in cholecystectomy; and 0.6% to 5.4% in bariatric surgery.

“There was a significant increase in minimally invasive utilizations over time, and robotic surgery increased disproportionately compared to the laparoscope counterpart,” Dr. Armijo said. “And although we cannot prove where those patients are coming from, we believe that, especially for inguinal and ventral hernia repairs, they are coming from laparoscopic surgeons who now are adopting robotic techniques and not from open surgeons switching to the robotic approach.”

In 7 years, the study showed a significant decrease in the share of open procedures in colectomy (from 71.8% to 61.9%), cholecystectomy (35.7% to 27.1%), and bariatric surgery (20.1% to 10.1%), but an increase in both laparoscopic and RAS approaches in these surgeries.

However, in IHR, open procedures held steady at around 84% through the study period, while laparoscopic procedures declined from 12.6% to 10.8% and RAS jumped 3.1% to 4.5%. For VHR, the share of open procedures actually jumped from 80.9% to 85.2%, while the proportion of laparoscopic procedures fell from 18.9% to 11.9% and RAS operations jumped more than tenfold, from 0.2% to 2.9%.

“For ventral hernia repair there was a significant decrease in the laparoscopic approach with a significant increase in both open and robotic procedures, which may be due to new open techniques, including component separation, that have been shown to be more durable as a repair,” Dr. Armijo said. “In addition, those repair techniques are more easily performed with the robotic approach. Laparoscopic surgeons are finding that robotic technology is enabling them to execute surgical tasks, such as suturing mesh.”

Coauthor Dmitry Oleynikov, MD, FACS, disclosed he is a stockholder in Virtual Incision Corp. Dr. Armijo and other coauthors had no financial relationships to disclose.

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Key clinical point: In inguinal and ventral hernia repair, laparoscopic surgeons are more likely than are open surgery counterparts to move to surgical robot.

Major finding: Over the 7-year study period, the share of open ventral hernia repair procedures increased from 80.9% to 85.2%, while the proportion of laparoscopic procedures fell from 18.9% to 11.9% and RAS operations increased from 0.2% to 2.9%.

Data source: Multicenter, retrospective study of 857,468 general surgery procedures from 2008 to 2015 in the University HealthSystem Consortium Clinical Database Resource Manager.

Disclosures: Dr. Armijo reported having no financial disclosures. Coauthor Dmitry Oleynikov, MD, disclosed stock holding in Virtual Incision Corp.
 

Ocrelizumab gets first-ever FDA approval for primary progressive MS

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The humanized monoclonal antibody ocrelizumab became the first drug to receive approval from the Food and Drug Administration for the treatment of primary progressive multiple sclerosis in adults, according to a March 29 announcement from the agency that also said it is approved for relapsing-remitting disease in adults.

The drug has a mechanism of action similar to rituximab (Rituxan) through its selective targeting of CD20-positive B cells, which depletes them from circulation. CD20-positive B cells are thought to be a key contributor to myelin and axonal damage.

Dr. Fred Lublin
Ocrelizumab will be marketed under the brand name Ocrevus and is expected to be available to people in the United States within 2 weeks, according to an announcement from its manufacturer, Genentech. The first dose is given as two 300-mg infusions administered 2 weeks apart. Subsequent doses are given as single 600-mg infusions. The biologic was granted breakthrough-therapy, fast-track status by the FDA because of its promising results in the phase III ORATORIO trial for primary progressive MS.

Although the effect of ocrelizumab on primary progressive MS patients was modest, its stature as the only drug approved for the indication represents “a start for being able to treat progressive MS,” Fred Lublin, MD, a member of the steering committee that designed and monitored the phase III ocrelizumab trials, said in an interview.

In the ORATORIO trial that randomized 732 patients with primary progressive MS in a 2:1 ratio to infusions of either 600 mg ocrelizumab or placebo every 24 weeks for 120 weeks, ocrelizumab reduced the risk of progression in clinical disability by 24% at 12 weeks (the primary end point), 25% at 24 weeks, and 24% at 120 weeks, compared with placebo (N Engl J Med. 2017 Jan 19;376[3]:209-20).

Over 120 weeks, the antibody also reduced the volume of hyperintense T2 lesions by 3.4%, whereas patients taking placebo experienced a 7.4% increase. The rate of whole brain volume loss was also significantly reduced from week 24 to 120 (–0.9% with ocrelizumab vs. –1.1% for placebo).

The group of patients who participated in ORATORIO was younger and had more activity on MRI, but it’s unclear if there is a progressive MS patient population who will respond best to the biologic, said Dr. Lublin, director of the Corinne Goldsmith Dickinson Center for Multiple Sclerosis at Mount Sinai Hospital in New York.

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Ocrelizumab joins a growing list of available drugs for treating relapsing-remitting MS, “but I think it will be a popular one because the efficacy was exceptionally good,” especially when considering that it was compared against high-dose interferon, Dr. Lublin said.

“The safety was acceptable, and so I think it will get a lot of use. There are always some who like to wait until a drug has been out for a while, but there is considerable experience with this type of drug based on off-label use of rituximab” in relapsing-remitting patients, including phase II trial data (but not phase III), he said. There’s potential for ocrelizumab to be used as a first-line treatment for relapsing-remitting disease to the same extent as natalizumab (Tysabri), he added.

In two identical phase III trials, OPERA I and OPERA II, investigators randomized 1,656 relapsing-remitting MS patients to intravenous ocrelizumab 600 mg every 24 weeks plus placebo subcutaneous injections three times weekly or to subcutaneous interferon beta-1a 44 mcg (Rebif) three times weekly plus placebo IV infusions every 24 weeks over 96 weeks (N Engl J Med. 2017 Jan 19;376[3]:221-34).

Compared with interferon beta-1a, ocrelizumab reduced the annualized relapse rate by 46% in OPERA 1 and 47% in OPERA 2. In a pooled analysis of both trials, the risk of confirmed disability progression was 40% lower for ocrelizumab at both 12 and 24 weeks. Ocrelizumab conferred a 94% and 95% reduction in the total number of T1 gadolinium-enhancing lesions and a 77% and 83% reduction in the total number of new and/or enlarging hyperintense T2 lesions. An exploratory analysis also suggested that the drug reduced the rate of whole brain volume loss, compared with interferon beta-1a.

At 96 weeks, 47.9% and 47.5% of ocrelizumab patients versus 29.2% and 25.1% of interferon patients had no evidence of disease activity (NEDA) in the two studies. NEDA is a composite score defined as no relapses, no confirmed disability progression, and no new or enlarging T2 or gadolinium-enhancing T1 lesions.

Across both studies, relapses occurred in about 20% of ocrelizumab patients versus about 35% of interferon patients. About 10% of ocrelizumab patients had clinical disease progression, compared with about 15% of interferon patients. Similarly, about 10% of ocrelizumab patients developed new gadolinium-enhancing lesions, compared with about 35% in the interferon groups. New or enlarging T2 lesions were found in about 40% in the ocrelizumab groups but in more than 60% in the interferon arms.

Safety results at 24 weeks in the OPERA trials showed that infusion reactions were significantly more common with ocrelizumab than with interferon beta-1a (34% vs. 9.7%), and most of these were mild to moderate in severity. Otherwise, there were similar rates of serious adverse events, including serious infections.

In ORATORIO, infusion reaction occurred in 40% of ocrelizumab patients and 26% of placebo patients. Most of the reactions were mild to moderate in severity. Among all patients in ORATORIO, 13 malignancies occurred over 3 years, and they occurred more than twice as often in the ocrelizumab arm than in the placebo arm (2.3% vs. 0.8%). These included four breast cancers in the active arm and none in the placebo arm.

No cases of progressive multifocal leukoencephalopathy (PML) have been reported in association with ocrelizumab, although the risk of PML with long-term use is unknown.

The FDA said in its announcement that ocrelizumab should not be used in patients with hepatitis B infection or a history of life-threatening infusion-related reactions to the drug. Ocrelizumab is required to be dispensed with a patient Medication Guide that describes important information about the drug’s uses and risks. The agency also advised that vaccination with live or live attenuated vaccines is not recommended in patients receiving the drug.

Genentech says it plans to offer patient assistance programs through Genentech Access Solutions.

Dr. Lublin reported receiving fees for serving on an advisory board from Genentech/Roche and from many other companies investigating or marketing drugs for MS.
 

 

 

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The humanized monoclonal antibody ocrelizumab became the first drug to receive approval from the Food and Drug Administration for the treatment of primary progressive multiple sclerosis in adults, according to a March 29 announcement from the agency that also said it is approved for relapsing-remitting disease in adults.

The drug has a mechanism of action similar to rituximab (Rituxan) through its selective targeting of CD20-positive B cells, which depletes them from circulation. CD20-positive B cells are thought to be a key contributor to myelin and axonal damage.

Dr. Fred Lublin
Ocrelizumab will be marketed under the brand name Ocrevus and is expected to be available to people in the United States within 2 weeks, according to an announcement from its manufacturer, Genentech. The first dose is given as two 300-mg infusions administered 2 weeks apart. Subsequent doses are given as single 600-mg infusions. The biologic was granted breakthrough-therapy, fast-track status by the FDA because of its promising results in the phase III ORATORIO trial for primary progressive MS.

Although the effect of ocrelizumab on primary progressive MS patients was modest, its stature as the only drug approved for the indication represents “a start for being able to treat progressive MS,” Fred Lublin, MD, a member of the steering committee that designed and monitored the phase III ocrelizumab trials, said in an interview.

In the ORATORIO trial that randomized 732 patients with primary progressive MS in a 2:1 ratio to infusions of either 600 mg ocrelizumab or placebo every 24 weeks for 120 weeks, ocrelizumab reduced the risk of progression in clinical disability by 24% at 12 weeks (the primary end point), 25% at 24 weeks, and 24% at 120 weeks, compared with placebo (N Engl J Med. 2017 Jan 19;376[3]:209-20).

Over 120 weeks, the antibody also reduced the volume of hyperintense T2 lesions by 3.4%, whereas patients taking placebo experienced a 7.4% increase. The rate of whole brain volume loss was also significantly reduced from week 24 to 120 (–0.9% with ocrelizumab vs. –1.1% for placebo).

The group of patients who participated in ORATORIO was younger and had more activity on MRI, but it’s unclear if there is a progressive MS patient population who will respond best to the biologic, said Dr. Lublin, director of the Corinne Goldsmith Dickinson Center for Multiple Sclerosis at Mount Sinai Hospital in New York.

Purple FDA logo.
Ocrelizumab joins a growing list of available drugs for treating relapsing-remitting MS, “but I think it will be a popular one because the efficacy was exceptionally good,” especially when considering that it was compared against high-dose interferon, Dr. Lublin said.

“The safety was acceptable, and so I think it will get a lot of use. There are always some who like to wait until a drug has been out for a while, but there is considerable experience with this type of drug based on off-label use of rituximab” in relapsing-remitting patients, including phase II trial data (but not phase III), he said. There’s potential for ocrelizumab to be used as a first-line treatment for relapsing-remitting disease to the same extent as natalizumab (Tysabri), he added.

In two identical phase III trials, OPERA I and OPERA II, investigators randomized 1,656 relapsing-remitting MS patients to intravenous ocrelizumab 600 mg every 24 weeks plus placebo subcutaneous injections three times weekly or to subcutaneous interferon beta-1a 44 mcg (Rebif) three times weekly plus placebo IV infusions every 24 weeks over 96 weeks (N Engl J Med. 2017 Jan 19;376[3]:221-34).

Compared with interferon beta-1a, ocrelizumab reduced the annualized relapse rate by 46% in OPERA 1 and 47% in OPERA 2. In a pooled analysis of both trials, the risk of confirmed disability progression was 40% lower for ocrelizumab at both 12 and 24 weeks. Ocrelizumab conferred a 94% and 95% reduction in the total number of T1 gadolinium-enhancing lesions and a 77% and 83% reduction in the total number of new and/or enlarging hyperintense T2 lesions. An exploratory analysis also suggested that the drug reduced the rate of whole brain volume loss, compared with interferon beta-1a.

At 96 weeks, 47.9% and 47.5% of ocrelizumab patients versus 29.2% and 25.1% of interferon patients had no evidence of disease activity (NEDA) in the two studies. NEDA is a composite score defined as no relapses, no confirmed disability progression, and no new or enlarging T2 or gadolinium-enhancing T1 lesions.

Across both studies, relapses occurred in about 20% of ocrelizumab patients versus about 35% of interferon patients. About 10% of ocrelizumab patients had clinical disease progression, compared with about 15% of interferon patients. Similarly, about 10% of ocrelizumab patients developed new gadolinium-enhancing lesions, compared with about 35% in the interferon groups. New or enlarging T2 lesions were found in about 40% in the ocrelizumab groups but in more than 60% in the interferon arms.

Safety results at 24 weeks in the OPERA trials showed that infusion reactions were significantly more common with ocrelizumab than with interferon beta-1a (34% vs. 9.7%), and most of these were mild to moderate in severity. Otherwise, there were similar rates of serious adverse events, including serious infections.

In ORATORIO, infusion reaction occurred in 40% of ocrelizumab patients and 26% of placebo patients. Most of the reactions were mild to moderate in severity. Among all patients in ORATORIO, 13 malignancies occurred over 3 years, and they occurred more than twice as often in the ocrelizumab arm than in the placebo arm (2.3% vs. 0.8%). These included four breast cancers in the active arm and none in the placebo arm.

No cases of progressive multifocal leukoencephalopathy (PML) have been reported in association with ocrelizumab, although the risk of PML with long-term use is unknown.

The FDA said in its announcement that ocrelizumab should not be used in patients with hepatitis B infection or a history of life-threatening infusion-related reactions to the drug. Ocrelizumab is required to be dispensed with a patient Medication Guide that describes important information about the drug’s uses and risks. The agency also advised that vaccination with live or live attenuated vaccines is not recommended in patients receiving the drug.

Genentech says it plans to offer patient assistance programs through Genentech Access Solutions.

Dr. Lublin reported receiving fees for serving on an advisory board from Genentech/Roche and from many other companies investigating or marketing drugs for MS.
 

 

 

 

The humanized monoclonal antibody ocrelizumab became the first drug to receive approval from the Food and Drug Administration for the treatment of primary progressive multiple sclerosis in adults, according to a March 29 announcement from the agency that also said it is approved for relapsing-remitting disease in adults.

The drug has a mechanism of action similar to rituximab (Rituxan) through its selective targeting of CD20-positive B cells, which depletes them from circulation. CD20-positive B cells are thought to be a key contributor to myelin and axonal damage.

Dr. Fred Lublin
Ocrelizumab will be marketed under the brand name Ocrevus and is expected to be available to people in the United States within 2 weeks, according to an announcement from its manufacturer, Genentech. The first dose is given as two 300-mg infusions administered 2 weeks apart. Subsequent doses are given as single 600-mg infusions. The biologic was granted breakthrough-therapy, fast-track status by the FDA because of its promising results in the phase III ORATORIO trial for primary progressive MS.

Although the effect of ocrelizumab on primary progressive MS patients was modest, its stature as the only drug approved for the indication represents “a start for being able to treat progressive MS,” Fred Lublin, MD, a member of the steering committee that designed and monitored the phase III ocrelizumab trials, said in an interview.

In the ORATORIO trial that randomized 732 patients with primary progressive MS in a 2:1 ratio to infusions of either 600 mg ocrelizumab or placebo every 24 weeks for 120 weeks, ocrelizumab reduced the risk of progression in clinical disability by 24% at 12 weeks (the primary end point), 25% at 24 weeks, and 24% at 120 weeks, compared with placebo (N Engl J Med. 2017 Jan 19;376[3]:209-20).

Over 120 weeks, the antibody also reduced the volume of hyperintense T2 lesions by 3.4%, whereas patients taking placebo experienced a 7.4% increase. The rate of whole brain volume loss was also significantly reduced from week 24 to 120 (–0.9% with ocrelizumab vs. –1.1% for placebo).

The group of patients who participated in ORATORIO was younger and had more activity on MRI, but it’s unclear if there is a progressive MS patient population who will respond best to the biologic, said Dr. Lublin, director of the Corinne Goldsmith Dickinson Center for Multiple Sclerosis at Mount Sinai Hospital in New York.

Purple FDA logo.
Ocrelizumab joins a growing list of available drugs for treating relapsing-remitting MS, “but I think it will be a popular one because the efficacy was exceptionally good,” especially when considering that it was compared against high-dose interferon, Dr. Lublin said.

“The safety was acceptable, and so I think it will get a lot of use. There are always some who like to wait until a drug has been out for a while, but there is considerable experience with this type of drug based on off-label use of rituximab” in relapsing-remitting patients, including phase II trial data (but not phase III), he said. There’s potential for ocrelizumab to be used as a first-line treatment for relapsing-remitting disease to the same extent as natalizumab (Tysabri), he added.

In two identical phase III trials, OPERA I and OPERA II, investigators randomized 1,656 relapsing-remitting MS patients to intravenous ocrelizumab 600 mg every 24 weeks plus placebo subcutaneous injections three times weekly or to subcutaneous interferon beta-1a 44 mcg (Rebif) three times weekly plus placebo IV infusions every 24 weeks over 96 weeks (N Engl J Med. 2017 Jan 19;376[3]:221-34).

Compared with interferon beta-1a, ocrelizumab reduced the annualized relapse rate by 46% in OPERA 1 and 47% in OPERA 2. In a pooled analysis of both trials, the risk of confirmed disability progression was 40% lower for ocrelizumab at both 12 and 24 weeks. Ocrelizumab conferred a 94% and 95% reduction in the total number of T1 gadolinium-enhancing lesions and a 77% and 83% reduction in the total number of new and/or enlarging hyperintense T2 lesions. An exploratory analysis also suggested that the drug reduced the rate of whole brain volume loss, compared with interferon beta-1a.

At 96 weeks, 47.9% and 47.5% of ocrelizumab patients versus 29.2% and 25.1% of interferon patients had no evidence of disease activity (NEDA) in the two studies. NEDA is a composite score defined as no relapses, no confirmed disability progression, and no new or enlarging T2 or gadolinium-enhancing T1 lesions.

Across both studies, relapses occurred in about 20% of ocrelizumab patients versus about 35% of interferon patients. About 10% of ocrelizumab patients had clinical disease progression, compared with about 15% of interferon patients. Similarly, about 10% of ocrelizumab patients developed new gadolinium-enhancing lesions, compared with about 35% in the interferon groups. New or enlarging T2 lesions were found in about 40% in the ocrelizumab groups but in more than 60% in the interferon arms.

Safety results at 24 weeks in the OPERA trials showed that infusion reactions were significantly more common with ocrelizumab than with interferon beta-1a (34% vs. 9.7%), and most of these were mild to moderate in severity. Otherwise, there were similar rates of serious adverse events, including serious infections.

In ORATORIO, infusion reaction occurred in 40% of ocrelizumab patients and 26% of placebo patients. Most of the reactions were mild to moderate in severity. Among all patients in ORATORIO, 13 malignancies occurred over 3 years, and they occurred more than twice as often in the ocrelizumab arm than in the placebo arm (2.3% vs. 0.8%). These included four breast cancers in the active arm and none in the placebo arm.

No cases of progressive multifocal leukoencephalopathy (PML) have been reported in association with ocrelizumab, although the risk of PML with long-term use is unknown.

The FDA said in its announcement that ocrelizumab should not be used in patients with hepatitis B infection or a history of life-threatening infusion-related reactions to the drug. Ocrelizumab is required to be dispensed with a patient Medication Guide that describes important information about the drug’s uses and risks. The agency also advised that vaccination with live or live attenuated vaccines is not recommended in patients receiving the drug.

Genentech says it plans to offer patient assistance programs through Genentech Access Solutions.

Dr. Lublin reported receiving fees for serving on an advisory board from Genentech/Roche and from many other companies investigating or marketing drugs for MS.
 

 

 

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The role of moisturizers and lubricants in genitourinary syndrome of menopause and beyond

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The role of moisturizers and lubricants in genitourinary syndrome of menopause and beyond
What role do moisturizers and lubricants play for women across patient populations? By openly talking to patients, we can individualize treatment choices and pave the way to sexual health.
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Michael L. Krychman, MD
Executive Director, Southern California Center for Sexual Health and Survivorship Medicine
Newport Beach, California

Alyssa Dweck, MD
CareMount Medical, PC, Mt. Kisco, New York
Assistant Clinical Professor, Department of Obstetrics, Gynecology, and Reproductive Science
Mount Sinai School of Medicine, New York, New York
Consultant, Massachusetts General Hospital, Vincents Memorial Ob/Gyn Service
Boston, Massachusetts

Sheryl Kingsberg, PhD
Chief, Division of Behavioral Medicine, Department of Obstetrics & Gynecology
University Hospitals, Cleveland Medical Center
Professor, Reproductive Biology and Psychiatry
Case Western Reserve University School of Medicine
Cleveland, Ohio

Lisa Larkin, MD
President, Lisa Larkin, MD, & Associates
Cincinnati, Ohio


Dr. Krychman reports receiving research support from New England Research Institutes (NERI) and being a consultant for Palatin, Shionogi, Inc, Sylk USA, TherapeuticsMD, and Valeant Pharmaceuticals; a speaker for Shionogi and Valeant; and an advisor for Uniderm.

Dr. Dweck reports being a consultant to Uniderm and a speaker for Bayer Pharmaceuticals.

Dr. Kingsberg reports receiving grant or research support from Palatin; being a consultant to Acerus, AMAG, Emotional Brain, EndoCeutics, Materna, NovoNordisk, Nuelle, Palatin, Pfizer, Scientific Strategic Solutions, Shionogi, TherapeticsMD, and Valeant Pharmaceuticals; and being a speaker for Valeant.

Dr. Larkin reports being a consultant and speaker for Valeant Pharmaceuticals.

OBG Management and the roundtable faculty do not endorse any specific product mentioned over another in this roundtable discussion.

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CareMount Medical, PC, Mt. Kisco, New York
Assistant Clinical Professor, Department of Obstetrics, Gynecology, and Reproductive Science
Mount Sinai School of Medicine, New York, New York
Consultant, Massachusetts General Hospital, Vincents Memorial Ob/Gyn Service
Boston, Massachusetts

Sheryl Kingsberg, PhD
Chief, Division of Behavioral Medicine, Department of Obstetrics & Gynecology
University Hospitals, Cleveland Medical Center
Professor, Reproductive Biology and Psychiatry
Case Western Reserve University School of Medicine
Cleveland, Ohio

Lisa Larkin, MD
President, Lisa Larkin, MD, & Associates
Cincinnati, Ohio


Dr. Krychman reports receiving research support from New England Research Institutes (NERI) and being a consultant for Palatin, Shionogi, Inc, Sylk USA, TherapeuticsMD, and Valeant Pharmaceuticals; a speaker for Shionogi and Valeant; and an advisor for Uniderm.

Dr. Dweck reports being a consultant to Uniderm and a speaker for Bayer Pharmaceuticals.

Dr. Kingsberg reports receiving grant or research support from Palatin; being a consultant to Acerus, AMAG, Emotional Brain, EndoCeutics, Materna, NovoNordisk, Nuelle, Palatin, Pfizer, Scientific Strategic Solutions, Shionogi, TherapeticsMD, and Valeant Pharmaceuticals; and being a speaker for Valeant.

Dr. Larkin reports being a consultant and speaker for Valeant Pharmaceuticals.

OBG Management and the roundtable faculty do not endorse any specific product mentioned over another in this roundtable discussion.

Author and Disclosure Information

Michael L. Krychman, MD
Executive Director, Southern California Center for Sexual Health and Survivorship Medicine
Newport Beach, California

Alyssa Dweck, MD
CareMount Medical, PC, Mt. Kisco, New York
Assistant Clinical Professor, Department of Obstetrics, Gynecology, and Reproductive Science
Mount Sinai School of Medicine, New York, New York
Consultant, Massachusetts General Hospital, Vincents Memorial Ob/Gyn Service
Boston, Massachusetts

Sheryl Kingsberg, PhD
Chief, Division of Behavioral Medicine, Department of Obstetrics & Gynecology
University Hospitals, Cleveland Medical Center
Professor, Reproductive Biology and Psychiatry
Case Western Reserve University School of Medicine
Cleveland, Ohio

Lisa Larkin, MD
President, Lisa Larkin, MD, & Associates
Cincinnati, Ohio


Dr. Krychman reports receiving research support from New England Research Institutes (NERI) and being a consultant for Palatin, Shionogi, Inc, Sylk USA, TherapeuticsMD, and Valeant Pharmaceuticals; a speaker for Shionogi and Valeant; and an advisor for Uniderm.

Dr. Dweck reports being a consultant to Uniderm and a speaker for Bayer Pharmaceuticals.

Dr. Kingsberg reports receiving grant or research support from Palatin; being a consultant to Acerus, AMAG, Emotional Brain, EndoCeutics, Materna, NovoNordisk, Nuelle, Palatin, Pfizer, Scientific Strategic Solutions, Shionogi, TherapeticsMD, and Valeant Pharmaceuticals; and being a speaker for Valeant.

Dr. Larkin reports being a consultant and speaker for Valeant Pharmaceuticals.

OBG Management and the roundtable faculty do not endorse any specific product mentioned over another in this roundtable discussion.

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What role do moisturizers and lubricants play for women across patient populations? By openly talking to patients, we can individualize treatment choices and pave the way to sexual health.
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Can Probiotics Help Treat MS?

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ORLANDO—Probiotic treatment is associated with the induction of an anti-inflammatory peripheral immune profile in patients with multiple sclerosis (MS), and discontinuing probiotics is associated with a decrease in immune regulatory cells, according to pilot study results presented at the ACTRIMS 2017 Forum. The results suggest that probiotics may be applicable as a therapy for MS. More studies, including controlled clinical trials, are needed to guide treatment decisions, said Howard L. Weiner, MD, Director of the MS Program at Brigham and Women’s Hospital in Newton, Massachusetts, and Robert L. Kroc Professor of Neurology at Harvard Medical School in Boston.

Howard L. Weiner, MD

The gut microbiome can modulate neuroimmune function, and studies have found that patients with MS have alterations in the gut microbiome, compared with healthy controls. These findings have led researchers to ask, “Can you treat MS by modulating the microbiome?” Dr. Weiner said. One way to modulate the microbiome is with probiotics, which can be taken as an oral, nontoxic treatment in combination with current therapies. He and his research colleagues conducted a pilot study to investigate the effect of probiotics in patients with MS. “We did not feel that we could do a clinically related study,” he said. Instead, the investigators focused on what happens to the gut microbiome and immune profiles in the blood of patients who receive probiotics.

Two Months of Treatment

The study included nine patients with MS and 13 controls. The investigators gave study participants the probiotic VSL#3. Some formulations of VSL#3 are available in stores. The company that markets the probiotic, Sigma-Tau HealthScience USA, based in Gaithersburg, Maryland, requires a prescription for VSL#3 DS, the double-strength formulation used in the study.

Prior studies of the probiotic have found that VSL#3 provides benefit in animal models of diabetes, colitis, and allergy. Kigerl et al reported that, in mice with spinal cord injury, dysbiosis induced by antibiotics exacerbates neurologic impairment and spinal cord pathology, whereas feeding mice VSL#3 enriched with lactic-acid-producing bacteria triggers a protective immune response, confers neuroprotection, and improves walking. In addition, some doctors prescribe VSL#3 to patients with ulcerative colitis, irritable bowel syndrome, and pouchitis, Dr. Weiner said.

In the pilot study, participants took VSL#3 DS sachets twice daily for two months. Researchers took blood and stool samples from participants before administering the probiotic, at discontinuation of therapy, and three months thereafter.

VSL#3 had no effect on alpha or phylogenetic diversity, but did change the gut microbiome composition. Researchers observed an increase in the relative abundance of specific organisms contained in the probiotic. Methanogens, which are increased in MS, decreased when patients received the probiotic. Administration of VSL#3 also was associated with a decrease in proinflammatory monocytes and decreased expression of activation markers on monocytes and dendritic cells.

When patients stopped probiotic treatment, the numbers of CD39 and IL10 T regulatory cells decreased, and proinflammatory monocytes increased. “We did see changes when you stop treatment, almost as if there is a rebound,” he said. “We are seeing an immune effect in the blood.”

The treatment was well tolerated. “I myself took some,” Dr. Weiner said. “It tastes a little chalky, but otherwise it is fine.” Some patients said they felt better after taking the probiotic. The study was not placebo-controlled, however. Future randomized clinical studies will include MRI scans, he said.

What should neurologists tell patients who want to take a probiotic and ask which probiotic they should take? “We are all asked those questions,” Dr. Weiner said. “I tell them, we really don’t know, but if you would like to take a probiotic, that is fine. But we have no particular recommendations at this time. We need a lot of science before we know what we are doing, as far as treatment, in this regard.”

Changes in the Gut Microbiome in MS

Prior to conducting the pilot study, Sushrut Jangi, MD, research fellow at Brigham and Women’s Hospital, Dr. Weiner, and colleagues studied the gut microbiome in 60 patients with MS and 43 healthy controls. They found that patients with MS had increases in Methanobrevibacter and Akkermansia and decreases in Butyricimonas, compared with controls. Methanobrevibacter produces methane, and in another cohort, the researchers detected more methane in the breath of patients with MS than in controls.

In addition, Prevotella and Sutterella were increased, and Sarcina was decreased in patients with MS who were treated with disease-modifying therapy, compared with untreated patients with MS. “It gives us a whole series of targets to try to understand,” he said. The gut microbiome alterations in patients with MS correlated with variations in the expression of genes in circulating T cells and monocytes that have been implicated in MS pathogenesis.

 

 

How Are the Gut Microbiome and MS Related?

The nature of the relationship between the gut microbiome and MS is unclear. One possibility is that “the gut could be the key to MS,” Dr. Weiner said. An organism in the gut may trigger MS, and that organism potentially could be altered or used in vaccinations to treat or prevent the disease. Alternatively, the gut microbiome might relate to MS susceptibility. Environmental factors, including diet and antibiotics, could affect the microbiome and MS risk. It is also possible that MS disease-modifying therapies act in part through the gut, Dr. Weiner said.

Various treatments targeting the microbiome are under investigation. For example, researchers are asking whether a particular bacteria or fecal microbiome transplants might help treat MS. “I am very interested in the concept of oral tolerance, where we trigger immune responses in the mucosa,” said Dr. Weiner. “We are beginning a trial of anti-CD3 [monoclonal antibodies], which will be given mucosally to stimulate the gut immune response.”

Jake Remaly

Suggested Reading

Jangi S, Gandhi R, Cox LM, et al. Alterations of the human gut microbiome in multiple sclerosis. Nat Commun. 2016;7:12015.

Kigerl KA, Hall JC, Wang L, et al. Gut dysbiosis impairs recovery after spinal cord injury. J Exp Med. 2016;213(12):2603-2620.

Kouchaki E, Tamtaji OR, Salami M, et al. Clinical and metabolic response to probiotic supplementation in patients with multiple sclerosis: A randomized, double-blind, placebo-controlled trial. Clin Nutr. 2016 Sep 16 [Epub ahead of print].

Miyake S, Kim S, Suda W, et al. Dysbiosis in the gut microbiota of patients with multiple sclerosis, with a striking depletion of species belonging to Clostridia XIVa and IV clusters. PLoS One. 2015;10(9):e0137429.

Tremlett H, Waubant E. The multiple sclerosis microbiome? Ann Transl Med. 2017;5(3):53.

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ORLANDO—Probiotic treatment is associated with the induction of an anti-inflammatory peripheral immune profile in patients with multiple sclerosis (MS), and discontinuing probiotics is associated with a decrease in immune regulatory cells, according to pilot study results presented at the ACTRIMS 2017 Forum. The results suggest that probiotics may be applicable as a therapy for MS. More studies, including controlled clinical trials, are needed to guide treatment decisions, said Howard L. Weiner, MD, Director of the MS Program at Brigham and Women’s Hospital in Newton, Massachusetts, and Robert L. Kroc Professor of Neurology at Harvard Medical School in Boston.

Howard L. Weiner, MD

The gut microbiome can modulate neuroimmune function, and studies have found that patients with MS have alterations in the gut microbiome, compared with healthy controls. These findings have led researchers to ask, “Can you treat MS by modulating the microbiome?” Dr. Weiner said. One way to modulate the microbiome is with probiotics, which can be taken as an oral, nontoxic treatment in combination with current therapies. He and his research colleagues conducted a pilot study to investigate the effect of probiotics in patients with MS. “We did not feel that we could do a clinically related study,” he said. Instead, the investigators focused on what happens to the gut microbiome and immune profiles in the blood of patients who receive probiotics.

Two Months of Treatment

The study included nine patients with MS and 13 controls. The investigators gave study participants the probiotic VSL#3. Some formulations of VSL#3 are available in stores. The company that markets the probiotic, Sigma-Tau HealthScience USA, based in Gaithersburg, Maryland, requires a prescription for VSL#3 DS, the double-strength formulation used in the study.

Prior studies of the probiotic have found that VSL#3 provides benefit in animal models of diabetes, colitis, and allergy. Kigerl et al reported that, in mice with spinal cord injury, dysbiosis induced by antibiotics exacerbates neurologic impairment and spinal cord pathology, whereas feeding mice VSL#3 enriched with lactic-acid-producing bacteria triggers a protective immune response, confers neuroprotection, and improves walking. In addition, some doctors prescribe VSL#3 to patients with ulcerative colitis, irritable bowel syndrome, and pouchitis, Dr. Weiner said.

In the pilot study, participants took VSL#3 DS sachets twice daily for two months. Researchers took blood and stool samples from participants before administering the probiotic, at discontinuation of therapy, and three months thereafter.

VSL#3 had no effect on alpha or phylogenetic diversity, but did change the gut microbiome composition. Researchers observed an increase in the relative abundance of specific organisms contained in the probiotic. Methanogens, which are increased in MS, decreased when patients received the probiotic. Administration of VSL#3 also was associated with a decrease in proinflammatory monocytes and decreased expression of activation markers on monocytes and dendritic cells.

When patients stopped probiotic treatment, the numbers of CD39 and IL10 T regulatory cells decreased, and proinflammatory monocytes increased. “We did see changes when you stop treatment, almost as if there is a rebound,” he said. “We are seeing an immune effect in the blood.”

The treatment was well tolerated. “I myself took some,” Dr. Weiner said. “It tastes a little chalky, but otherwise it is fine.” Some patients said they felt better after taking the probiotic. The study was not placebo-controlled, however. Future randomized clinical studies will include MRI scans, he said.

What should neurologists tell patients who want to take a probiotic and ask which probiotic they should take? “We are all asked those questions,” Dr. Weiner said. “I tell them, we really don’t know, but if you would like to take a probiotic, that is fine. But we have no particular recommendations at this time. We need a lot of science before we know what we are doing, as far as treatment, in this regard.”

Changes in the Gut Microbiome in MS

Prior to conducting the pilot study, Sushrut Jangi, MD, research fellow at Brigham and Women’s Hospital, Dr. Weiner, and colleagues studied the gut microbiome in 60 patients with MS and 43 healthy controls. They found that patients with MS had increases in Methanobrevibacter and Akkermansia and decreases in Butyricimonas, compared with controls. Methanobrevibacter produces methane, and in another cohort, the researchers detected more methane in the breath of patients with MS than in controls.

In addition, Prevotella and Sutterella were increased, and Sarcina was decreased in patients with MS who were treated with disease-modifying therapy, compared with untreated patients with MS. “It gives us a whole series of targets to try to understand,” he said. The gut microbiome alterations in patients with MS correlated with variations in the expression of genes in circulating T cells and monocytes that have been implicated in MS pathogenesis.

 

 

How Are the Gut Microbiome and MS Related?

The nature of the relationship between the gut microbiome and MS is unclear. One possibility is that “the gut could be the key to MS,” Dr. Weiner said. An organism in the gut may trigger MS, and that organism potentially could be altered or used in vaccinations to treat or prevent the disease. Alternatively, the gut microbiome might relate to MS susceptibility. Environmental factors, including diet and antibiotics, could affect the microbiome and MS risk. It is also possible that MS disease-modifying therapies act in part through the gut, Dr. Weiner said.

Various treatments targeting the microbiome are under investigation. For example, researchers are asking whether a particular bacteria or fecal microbiome transplants might help treat MS. “I am very interested in the concept of oral tolerance, where we trigger immune responses in the mucosa,” said Dr. Weiner. “We are beginning a trial of anti-CD3 [monoclonal antibodies], which will be given mucosally to stimulate the gut immune response.”

Jake Remaly

Suggested Reading

Jangi S, Gandhi R, Cox LM, et al. Alterations of the human gut microbiome in multiple sclerosis. Nat Commun. 2016;7:12015.

Kigerl KA, Hall JC, Wang L, et al. Gut dysbiosis impairs recovery after spinal cord injury. J Exp Med. 2016;213(12):2603-2620.

Kouchaki E, Tamtaji OR, Salami M, et al. Clinical and metabolic response to probiotic supplementation in patients with multiple sclerosis: A randomized, double-blind, placebo-controlled trial. Clin Nutr. 2016 Sep 16 [Epub ahead of print].

Miyake S, Kim S, Suda W, et al. Dysbiosis in the gut microbiota of patients with multiple sclerosis, with a striking depletion of species belonging to Clostridia XIVa and IV clusters. PLoS One. 2015;10(9):e0137429.

Tremlett H, Waubant E. The multiple sclerosis microbiome? Ann Transl Med. 2017;5(3):53.

ORLANDO—Probiotic treatment is associated with the induction of an anti-inflammatory peripheral immune profile in patients with multiple sclerosis (MS), and discontinuing probiotics is associated with a decrease in immune regulatory cells, according to pilot study results presented at the ACTRIMS 2017 Forum. The results suggest that probiotics may be applicable as a therapy for MS. More studies, including controlled clinical trials, are needed to guide treatment decisions, said Howard L. Weiner, MD, Director of the MS Program at Brigham and Women’s Hospital in Newton, Massachusetts, and Robert L. Kroc Professor of Neurology at Harvard Medical School in Boston.

Howard L. Weiner, MD

The gut microbiome can modulate neuroimmune function, and studies have found that patients with MS have alterations in the gut microbiome, compared with healthy controls. These findings have led researchers to ask, “Can you treat MS by modulating the microbiome?” Dr. Weiner said. One way to modulate the microbiome is with probiotics, which can be taken as an oral, nontoxic treatment in combination with current therapies. He and his research colleagues conducted a pilot study to investigate the effect of probiotics in patients with MS. “We did not feel that we could do a clinically related study,” he said. Instead, the investigators focused on what happens to the gut microbiome and immune profiles in the blood of patients who receive probiotics.

Two Months of Treatment

The study included nine patients with MS and 13 controls. The investigators gave study participants the probiotic VSL#3. Some formulations of VSL#3 are available in stores. The company that markets the probiotic, Sigma-Tau HealthScience USA, based in Gaithersburg, Maryland, requires a prescription for VSL#3 DS, the double-strength formulation used in the study.

Prior studies of the probiotic have found that VSL#3 provides benefit in animal models of diabetes, colitis, and allergy. Kigerl et al reported that, in mice with spinal cord injury, dysbiosis induced by antibiotics exacerbates neurologic impairment and spinal cord pathology, whereas feeding mice VSL#3 enriched with lactic-acid-producing bacteria triggers a protective immune response, confers neuroprotection, and improves walking. In addition, some doctors prescribe VSL#3 to patients with ulcerative colitis, irritable bowel syndrome, and pouchitis, Dr. Weiner said.

In the pilot study, participants took VSL#3 DS sachets twice daily for two months. Researchers took blood and stool samples from participants before administering the probiotic, at discontinuation of therapy, and three months thereafter.

VSL#3 had no effect on alpha or phylogenetic diversity, but did change the gut microbiome composition. Researchers observed an increase in the relative abundance of specific organisms contained in the probiotic. Methanogens, which are increased in MS, decreased when patients received the probiotic. Administration of VSL#3 also was associated with a decrease in proinflammatory monocytes and decreased expression of activation markers on monocytes and dendritic cells.

When patients stopped probiotic treatment, the numbers of CD39 and IL10 T regulatory cells decreased, and proinflammatory monocytes increased. “We did see changes when you stop treatment, almost as if there is a rebound,” he said. “We are seeing an immune effect in the blood.”

The treatment was well tolerated. “I myself took some,” Dr. Weiner said. “It tastes a little chalky, but otherwise it is fine.” Some patients said they felt better after taking the probiotic. The study was not placebo-controlled, however. Future randomized clinical studies will include MRI scans, he said.

What should neurologists tell patients who want to take a probiotic and ask which probiotic they should take? “We are all asked those questions,” Dr. Weiner said. “I tell them, we really don’t know, but if you would like to take a probiotic, that is fine. But we have no particular recommendations at this time. We need a lot of science before we know what we are doing, as far as treatment, in this regard.”

Changes in the Gut Microbiome in MS

Prior to conducting the pilot study, Sushrut Jangi, MD, research fellow at Brigham and Women’s Hospital, Dr. Weiner, and colleagues studied the gut microbiome in 60 patients with MS and 43 healthy controls. They found that patients with MS had increases in Methanobrevibacter and Akkermansia and decreases in Butyricimonas, compared with controls. Methanobrevibacter produces methane, and in another cohort, the researchers detected more methane in the breath of patients with MS than in controls.

In addition, Prevotella and Sutterella were increased, and Sarcina was decreased in patients with MS who were treated with disease-modifying therapy, compared with untreated patients with MS. “It gives us a whole series of targets to try to understand,” he said. The gut microbiome alterations in patients with MS correlated with variations in the expression of genes in circulating T cells and monocytes that have been implicated in MS pathogenesis.

 

 

How Are the Gut Microbiome and MS Related?

The nature of the relationship between the gut microbiome and MS is unclear. One possibility is that “the gut could be the key to MS,” Dr. Weiner said. An organism in the gut may trigger MS, and that organism potentially could be altered or used in vaccinations to treat or prevent the disease. Alternatively, the gut microbiome might relate to MS susceptibility. Environmental factors, including diet and antibiotics, could affect the microbiome and MS risk. It is also possible that MS disease-modifying therapies act in part through the gut, Dr. Weiner said.

Various treatments targeting the microbiome are under investigation. For example, researchers are asking whether a particular bacteria or fecal microbiome transplants might help treat MS. “I am very interested in the concept of oral tolerance, where we trigger immune responses in the mucosa,” said Dr. Weiner. “We are beginning a trial of anti-CD3 [monoclonal antibodies], which will be given mucosally to stimulate the gut immune response.”

Jake Remaly

Suggested Reading

Jangi S, Gandhi R, Cox LM, et al. Alterations of the human gut microbiome in multiple sclerosis. Nat Commun. 2016;7:12015.

Kigerl KA, Hall JC, Wang L, et al. Gut dysbiosis impairs recovery after spinal cord injury. J Exp Med. 2016;213(12):2603-2620.

Kouchaki E, Tamtaji OR, Salami M, et al. Clinical and metabolic response to probiotic supplementation in patients with multiple sclerosis: A randomized, double-blind, placebo-controlled trial. Clin Nutr. 2016 Sep 16 [Epub ahead of print].

Miyake S, Kim S, Suda W, et al. Dysbiosis in the gut microbiota of patients with multiple sclerosis, with a striking depletion of species belonging to Clostridia XIVa and IV clusters. PLoS One. 2015;10(9):e0137429.

Tremlett H, Waubant E. The multiple sclerosis microbiome? Ann Transl Med. 2017;5(3):53.

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2017 Update on abnormal uterine bleeding

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2017 Update on abnormal uterine bleeding
Study data indicate that we consider obesity over age as a risk factor for endometrial hyperplasia, the LNG-IUD for treatment of heavy bleeding in obese patients, and diagnostic hysteroscopy in the office versus the operating room

Two issues of emerging importance are being addressed in the literature: caring for patients with obesity and the concept of delivering value-based care. Value-based care does not mean providing the cheapest care; “value” places importance on quality as well as cost. In this Update, we present 3 practices that the evidence says will deliver value:

  • endometrial biopsy in all obese women. Although performing more endometrial biopsies in younger women with a body mass index (BMI) in the obese range will not be less expensive initially, the procedure’s value likely will be in early diagnosis, which hopefully will translate to eventual health care system savings.
  • use of the levonorgestrel-releasing intrauterine device (LNG-IUD) in obese patients experiencing abnormal uterine bleeding (AUB). This practice appears to add value in the context of AUB.
  • performance of routine diagnostic hysteroscopy in the office setting. We should reconsider our current habits and traditions of performing routine diagnostic hysteroscopy in the operating room (OR) as we move toward providing value-based care.

Read about obesity as a risk factor for endometrial hyperplasia

 

 

Endometrial sampling and obesity: Forget the "age 45" rule 

Wise MR, Gill P, Lensen S, Thompson JM, Farquhar CM. Body mass index trumps age in decision for endometrial biopsy: cohort study of symptomatic premenopausal women. Am J Obstet Gynecol. 2016;215(5):598.e1-e8.


How do we bring more value to our patients with AUB? We are well aware that heavy menstrual bleeding places a burden on many women; AUB affects 30% of those of reproductive age. The condition often results in lost workdays and diminished quality of life. It also is associated with significant cost expenditures for hygiene products. It is important not only to bring value to women with heavy menstrual bleeding but also to consider our increasingly expensive health care system.

Obesity is a significant problem that likely will increase the number of women presenting with AUB to ObGyns. Recent studies from New Zealand--which has 33% of its population classified as obese--have provided valuable information.1

Photo: Shutterstock
Endometrial cancer sample seen on low-power microscopy.

Obesity is a risk factor for endometrial hyperplasia

In a large retrospective cohort study, Wise and colleagues analyzed data from 916 premenopausal women referred for AUB who had an endometrial biopsy from 2008 to 2014. The setting was a single large urban secondary women's health service in New Zealand. This study challenges the concept of age-related biopsy guidelines.

Of the 916 women, half were obese. Almost 5% of the women had complex endometrial hyperplasia with atypia or cancer. This incidence had risen from 3% in the years 1995 to 1997, likely due to the rising incidence of obesity. Women with a BMI ≥30 kg/m2 were 4 times more likely to develop complex hyperplasia or cancer than normal-weight women.

Other factors associated with an increased risk for complex hyperplasia or cancer were nulliparity (odds ratio [OR], 2.51; 95% confidence interval [CI], 1.25-5.05), anemia (OR, 2.38; 95% CI, 1.25-4.56), and a thickened endometrium on ultrasonography (defined as >12 mm; OR, 4.04; 95% CI, 1.69-9.65). Age was not a significant risk factor in this group.  

WHAT THIS EVIDENCE MEANS FOR PRACTICEAlthough guidelines suggest that age 45, or age 40 with obesity, should be used as an indication for endometrial sampling in women with AUB, results from this study suggest that obesity (BMI ≥30 kg/m2) should be considered a more important risk factor than age. We will adjust our practice according to these findings, as the risk is fairly significant.

Read about using LNG-IUD to treat AUB in obese women

 

 

Small study shows LNG-IUD is effective for treating heavy menstrual bleeding in obese patients

Shaw V, Vandal AC, Coomarasamy C, Ekeroma AJ. The effectiveness of the levonorgestrel intrauterine system in obese women with heavy menstrual bleeding. Aust N Z J Obstet Gynaecol. 2016;56(6):619-623.


In another recent study from New Zealand, researchers set out to assess the efficacy of the LNG-IUD for the treatment of heavy menstrual bleeding in obese women. This study is important because there are very few studies of the LNG-IUD in the obese population, and none that have studied quality-of-life measures. 

Shaw and colleagues conducted the prospective observational study at a tertiary teaching hospital. Twenty obese (BMI >30 kg/m2) women with heavy menstrual bleeding agreed to treatment with an LNG-IUD, and 14 completed the study (2 had a device expulsion, 1 had a device removed for pain, and 1 had a device removed for infection; 2 were lost to follow-up). The women were aged 27 to 52 years (median, 40.5 years), and their BMI ranged from 30 to 68 kg/m2 (median, 40.6 kg/m2). At recruitment, 6 months, and 12 months, participants completed the Menstrual Impact Questionnaire and the Pictorial Bleeding Assessment Chart--2 validated tools.

Photo: Shutterstock
An LNG-IUD reduced heaving bleeding in obese women, with an actual efficacy rate of 67%.

Compared with baseline Pictorial Bleeding Assessment scores, the authors found the LNG-IUD to be effective in 73.2% (95% CI, 55.3%-83.9%) of women at 6 months and in 92.8% (95% CI, 80.0%-97.4%) of women at 12 months. Taking into consideration device failures, including removed and expelled LNG-IUDs (which occurred in 4 women, or 20%, in the intent-to-treat analysis), the actual efficacy rate was 67%. Similarly, there was significant improvement at 6 and 12 months in Menstrual Impact Questionnaire scores for social activities, work performance, tiredness, productivity, hygiene,  and depression.

WHAT THIS EVIDENCE MEANS FOR PRACTICEObese women with heavy menstrual bleeding treated with the LNG-IUD experienced an overall 67% efficacy in treatment for bleeding and significant improvement in quality-of-life measures at 6 and 12 months. We will offer obese women with heavy bleeding this treatment as it is a low-risk and low-cost option compared with surgical management in this population.

Read about doing more diagnostic hysteroscopy in the office

 

 

Is it time to abandon diagnostic hysteroscopy in the OR?

Leung S, Leyland N, Murji A. Decreasing diagnostic hysteroscopy performed in the operating room: a quality improvement initiative. J Obstet Gynaecol Can. 2016;38(4):351-356.


Diagnostic hysteroscopy: Are we stuck in the 1990s? Why are we still performing so many diagnostic hysteroscopies in the OR, thus subjecting our patients to general anesthesia and using our precious OR time? That is the question asked by a group of researchers in Canada. 

According to data from the Ontario Ministry of Health and Long Term Care, diagnostic hysteroscopy was performed 10,027 times in the 2013-2014 fiscal year. Ontario researchers designed and implemented a quality improvement initiative at their institution and successfully decreased the number of diagnostic hysteroscopies performed in their hospital by 70% from their baseline 12-month period. The improvements resulted in a savings of 78 hours of case costing, or $126,984. When these data are extrapolated to the Ontario population (in which more than  10,000 diagnostic hysteroscopies were performed), potentially 7,000 women could avoid the risk of general anesthesia and the health care system could save $11 million. 

Re-education protocol was key to reducing OR procedures

How did the researchers accomplish their results? The multifaceted intervention had  3 key components:

Staff education and review. Many surgeons were performing diagnostic hysteroscopy in the OR because that is how they were trained, and they were unaware of less invasive options. An awareness campaign was conducted by e-mail, during staff meetings, and at rounds. 

Accessible sonohysterography. This diagnostic modality was made more accessible to referring physicians in a timely manner.

Initiation of an operative hysteroscopy education program. To allow more surgeons greater comfort with office hysteroscopy, the authors instituted didactic sessions, dry and wet lab simulations, and mentorship.  

WHAT THIS EVIDENCE MEANS FOR PRACTICEAlthough some patients may need to have diagnostic hysteroscopy performed in the OR because of difficulty accessing the endometrial cavity, the vast majority of cases can be done in the office with no anesthesia or with local anesthesia. Habit and tradition will not continue to win the day as we head toward providing value-based health care.

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

References
  1. The Organization for Economic Co-operation and Development (OECD). OECD obesity update 2014. http://www.oecd.org/health/Obesity-Update-2014.pdf. Published June 2014. Accessed March 10, 2017.
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Dr. Adelman is Assistant Professor, Department of Obstetrics and Gynecology, University of Utah Health Sciences Center.

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The authors report no financial relationships relevant to this article.

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Study data indicate that we consider obesity over age as a risk factor for endometrial hyperplasia, the LNG-IUD for treatment of heavy bleeding in obese patients, and diagnostic hysteroscopy in the office versus the operating room
Study data indicate that we consider obesity over age as a risk factor for endometrial hyperplasia, the LNG-IUD for treatment of heavy bleeding in obese patients, and diagnostic hysteroscopy in the office versus the operating room

Two issues of emerging importance are being addressed in the literature: caring for patients with obesity and the concept of delivering value-based care. Value-based care does not mean providing the cheapest care; “value” places importance on quality as well as cost. In this Update, we present 3 practices that the evidence says will deliver value:

  • endometrial biopsy in all obese women. Although performing more endometrial biopsies in younger women with a body mass index (BMI) in the obese range will not be less expensive initially, the procedure’s value likely will be in early diagnosis, which hopefully will translate to eventual health care system savings.
  • use of the levonorgestrel-releasing intrauterine device (LNG-IUD) in obese patients experiencing abnormal uterine bleeding (AUB). This practice appears to add value in the context of AUB.
  • performance of routine diagnostic hysteroscopy in the office setting. We should reconsider our current habits and traditions of performing routine diagnostic hysteroscopy in the operating room (OR) as we move toward providing value-based care.

Read about obesity as a risk factor for endometrial hyperplasia

 

 

Endometrial sampling and obesity: Forget the "age 45" rule 

Wise MR, Gill P, Lensen S, Thompson JM, Farquhar CM. Body mass index trumps age in decision for endometrial biopsy: cohort study of symptomatic premenopausal women. Am J Obstet Gynecol. 2016;215(5):598.e1-e8.


How do we bring more value to our patients with AUB? We are well aware that heavy menstrual bleeding places a burden on many women; AUB affects 30% of those of reproductive age. The condition often results in lost workdays and diminished quality of life. It also is associated with significant cost expenditures for hygiene products. It is important not only to bring value to women with heavy menstrual bleeding but also to consider our increasingly expensive health care system.

Obesity is a significant problem that likely will increase the number of women presenting with AUB to ObGyns. Recent studies from New Zealand--which has 33% of its population classified as obese--have provided valuable information.1

Photo: Shutterstock
Endometrial cancer sample seen on low-power microscopy.

Obesity is a risk factor for endometrial hyperplasia

In a large retrospective cohort study, Wise and colleagues analyzed data from 916 premenopausal women referred for AUB who had an endometrial biopsy from 2008 to 2014. The setting was a single large urban secondary women's health service in New Zealand. This study challenges the concept of age-related biopsy guidelines.

Of the 916 women, half were obese. Almost 5% of the women had complex endometrial hyperplasia with atypia or cancer. This incidence had risen from 3% in the years 1995 to 1997, likely due to the rising incidence of obesity. Women with a BMI ≥30 kg/m2 were 4 times more likely to develop complex hyperplasia or cancer than normal-weight women.

Other factors associated with an increased risk for complex hyperplasia or cancer were nulliparity (odds ratio [OR], 2.51; 95% confidence interval [CI], 1.25-5.05), anemia (OR, 2.38; 95% CI, 1.25-4.56), and a thickened endometrium on ultrasonography (defined as >12 mm; OR, 4.04; 95% CI, 1.69-9.65). Age was not a significant risk factor in this group.  

WHAT THIS EVIDENCE MEANS FOR PRACTICEAlthough guidelines suggest that age 45, or age 40 with obesity, should be used as an indication for endometrial sampling in women with AUB, results from this study suggest that obesity (BMI ≥30 kg/m2) should be considered a more important risk factor than age. We will adjust our practice according to these findings, as the risk is fairly significant.

Read about using LNG-IUD to treat AUB in obese women

 

 

Small study shows LNG-IUD is effective for treating heavy menstrual bleeding in obese patients

Shaw V, Vandal AC, Coomarasamy C, Ekeroma AJ. The effectiveness of the levonorgestrel intrauterine system in obese women with heavy menstrual bleeding. Aust N Z J Obstet Gynaecol. 2016;56(6):619-623.


In another recent study from New Zealand, researchers set out to assess the efficacy of the LNG-IUD for the treatment of heavy menstrual bleeding in obese women. This study is important because there are very few studies of the LNG-IUD in the obese population, and none that have studied quality-of-life measures. 

Shaw and colleagues conducted the prospective observational study at a tertiary teaching hospital. Twenty obese (BMI >30 kg/m2) women with heavy menstrual bleeding agreed to treatment with an LNG-IUD, and 14 completed the study (2 had a device expulsion, 1 had a device removed for pain, and 1 had a device removed for infection; 2 were lost to follow-up). The women were aged 27 to 52 years (median, 40.5 years), and their BMI ranged from 30 to 68 kg/m2 (median, 40.6 kg/m2). At recruitment, 6 months, and 12 months, participants completed the Menstrual Impact Questionnaire and the Pictorial Bleeding Assessment Chart--2 validated tools.

Photo: Shutterstock
An LNG-IUD reduced heaving bleeding in obese women, with an actual efficacy rate of 67%.

Compared with baseline Pictorial Bleeding Assessment scores, the authors found the LNG-IUD to be effective in 73.2% (95% CI, 55.3%-83.9%) of women at 6 months and in 92.8% (95% CI, 80.0%-97.4%) of women at 12 months. Taking into consideration device failures, including removed and expelled LNG-IUDs (which occurred in 4 women, or 20%, in the intent-to-treat analysis), the actual efficacy rate was 67%. Similarly, there was significant improvement at 6 and 12 months in Menstrual Impact Questionnaire scores for social activities, work performance, tiredness, productivity, hygiene,  and depression.

WHAT THIS EVIDENCE MEANS FOR PRACTICEObese women with heavy menstrual bleeding treated with the LNG-IUD experienced an overall 67% efficacy in treatment for bleeding and significant improvement in quality-of-life measures at 6 and 12 months. We will offer obese women with heavy bleeding this treatment as it is a low-risk and low-cost option compared with surgical management in this population.

Read about doing more diagnostic hysteroscopy in the office

 

 

Is it time to abandon diagnostic hysteroscopy in the OR?

Leung S, Leyland N, Murji A. Decreasing diagnostic hysteroscopy performed in the operating room: a quality improvement initiative. J Obstet Gynaecol Can. 2016;38(4):351-356.


Diagnostic hysteroscopy: Are we stuck in the 1990s? Why are we still performing so many diagnostic hysteroscopies in the OR, thus subjecting our patients to general anesthesia and using our precious OR time? That is the question asked by a group of researchers in Canada. 

According to data from the Ontario Ministry of Health and Long Term Care, diagnostic hysteroscopy was performed 10,027 times in the 2013-2014 fiscal year. Ontario researchers designed and implemented a quality improvement initiative at their institution and successfully decreased the number of diagnostic hysteroscopies performed in their hospital by 70% from their baseline 12-month period. The improvements resulted in a savings of 78 hours of case costing, or $126,984. When these data are extrapolated to the Ontario population (in which more than  10,000 diagnostic hysteroscopies were performed), potentially 7,000 women could avoid the risk of general anesthesia and the health care system could save $11 million. 

Re-education protocol was key to reducing OR procedures

How did the researchers accomplish their results? The multifaceted intervention had  3 key components:

Staff education and review. Many surgeons were performing diagnostic hysteroscopy in the OR because that is how they were trained, and they were unaware of less invasive options. An awareness campaign was conducted by e-mail, during staff meetings, and at rounds. 

Accessible sonohysterography. This diagnostic modality was made more accessible to referring physicians in a timely manner.

Initiation of an operative hysteroscopy education program. To allow more surgeons greater comfort with office hysteroscopy, the authors instituted didactic sessions, dry and wet lab simulations, and mentorship.  

WHAT THIS EVIDENCE MEANS FOR PRACTICEAlthough some patients may need to have diagnostic hysteroscopy performed in the OR because of difficulty accessing the endometrial cavity, the vast majority of cases can be done in the office with no anesthesia or with local anesthesia. Habit and tradition will not continue to win the day as we head toward providing value-based health care.

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

Two issues of emerging importance are being addressed in the literature: caring for patients with obesity and the concept of delivering value-based care. Value-based care does not mean providing the cheapest care; “value” places importance on quality as well as cost. In this Update, we present 3 practices that the evidence says will deliver value:

  • endometrial biopsy in all obese women. Although performing more endometrial biopsies in younger women with a body mass index (BMI) in the obese range will not be less expensive initially, the procedure’s value likely will be in early diagnosis, which hopefully will translate to eventual health care system savings.
  • use of the levonorgestrel-releasing intrauterine device (LNG-IUD) in obese patients experiencing abnormal uterine bleeding (AUB). This practice appears to add value in the context of AUB.
  • performance of routine diagnostic hysteroscopy in the office setting. We should reconsider our current habits and traditions of performing routine diagnostic hysteroscopy in the operating room (OR) as we move toward providing value-based care.

Read about obesity as a risk factor for endometrial hyperplasia

 

 

Endometrial sampling and obesity: Forget the "age 45" rule 

Wise MR, Gill P, Lensen S, Thompson JM, Farquhar CM. Body mass index trumps age in decision for endometrial biopsy: cohort study of symptomatic premenopausal women. Am J Obstet Gynecol. 2016;215(5):598.e1-e8.


How do we bring more value to our patients with AUB? We are well aware that heavy menstrual bleeding places a burden on many women; AUB affects 30% of those of reproductive age. The condition often results in lost workdays and diminished quality of life. It also is associated with significant cost expenditures for hygiene products. It is important not only to bring value to women with heavy menstrual bleeding but also to consider our increasingly expensive health care system.

Obesity is a significant problem that likely will increase the number of women presenting with AUB to ObGyns. Recent studies from New Zealand--which has 33% of its population classified as obese--have provided valuable information.1

Photo: Shutterstock
Endometrial cancer sample seen on low-power microscopy.

Obesity is a risk factor for endometrial hyperplasia

In a large retrospective cohort study, Wise and colleagues analyzed data from 916 premenopausal women referred for AUB who had an endometrial biopsy from 2008 to 2014. The setting was a single large urban secondary women's health service in New Zealand. This study challenges the concept of age-related biopsy guidelines.

Of the 916 women, half were obese. Almost 5% of the women had complex endometrial hyperplasia with atypia or cancer. This incidence had risen from 3% in the years 1995 to 1997, likely due to the rising incidence of obesity. Women with a BMI ≥30 kg/m2 were 4 times more likely to develop complex hyperplasia or cancer than normal-weight women.

Other factors associated with an increased risk for complex hyperplasia or cancer were nulliparity (odds ratio [OR], 2.51; 95% confidence interval [CI], 1.25-5.05), anemia (OR, 2.38; 95% CI, 1.25-4.56), and a thickened endometrium on ultrasonography (defined as >12 mm; OR, 4.04; 95% CI, 1.69-9.65). Age was not a significant risk factor in this group.  

WHAT THIS EVIDENCE MEANS FOR PRACTICEAlthough guidelines suggest that age 45, or age 40 with obesity, should be used as an indication for endometrial sampling in women with AUB, results from this study suggest that obesity (BMI ≥30 kg/m2) should be considered a more important risk factor than age. We will adjust our practice according to these findings, as the risk is fairly significant.

Read about using LNG-IUD to treat AUB in obese women

 

 

Small study shows LNG-IUD is effective for treating heavy menstrual bleeding in obese patients

Shaw V, Vandal AC, Coomarasamy C, Ekeroma AJ. The effectiveness of the levonorgestrel intrauterine system in obese women with heavy menstrual bleeding. Aust N Z J Obstet Gynaecol. 2016;56(6):619-623.


In another recent study from New Zealand, researchers set out to assess the efficacy of the LNG-IUD for the treatment of heavy menstrual bleeding in obese women. This study is important because there are very few studies of the LNG-IUD in the obese population, and none that have studied quality-of-life measures. 

Shaw and colleagues conducted the prospective observational study at a tertiary teaching hospital. Twenty obese (BMI >30 kg/m2) women with heavy menstrual bleeding agreed to treatment with an LNG-IUD, and 14 completed the study (2 had a device expulsion, 1 had a device removed for pain, and 1 had a device removed for infection; 2 were lost to follow-up). The women were aged 27 to 52 years (median, 40.5 years), and their BMI ranged from 30 to 68 kg/m2 (median, 40.6 kg/m2). At recruitment, 6 months, and 12 months, participants completed the Menstrual Impact Questionnaire and the Pictorial Bleeding Assessment Chart--2 validated tools.

Photo: Shutterstock
An LNG-IUD reduced heaving bleeding in obese women, with an actual efficacy rate of 67%.

Compared with baseline Pictorial Bleeding Assessment scores, the authors found the LNG-IUD to be effective in 73.2% (95% CI, 55.3%-83.9%) of women at 6 months and in 92.8% (95% CI, 80.0%-97.4%) of women at 12 months. Taking into consideration device failures, including removed and expelled LNG-IUDs (which occurred in 4 women, or 20%, in the intent-to-treat analysis), the actual efficacy rate was 67%. Similarly, there was significant improvement at 6 and 12 months in Menstrual Impact Questionnaire scores for social activities, work performance, tiredness, productivity, hygiene,  and depression.

WHAT THIS EVIDENCE MEANS FOR PRACTICEObese women with heavy menstrual bleeding treated with the LNG-IUD experienced an overall 67% efficacy in treatment for bleeding and significant improvement in quality-of-life measures at 6 and 12 months. We will offer obese women with heavy bleeding this treatment as it is a low-risk and low-cost option compared with surgical management in this population.

Read about doing more diagnostic hysteroscopy in the office

 

 

Is it time to abandon diagnostic hysteroscopy in the OR?

Leung S, Leyland N, Murji A. Decreasing diagnostic hysteroscopy performed in the operating room: a quality improvement initiative. J Obstet Gynaecol Can. 2016;38(4):351-356.


Diagnostic hysteroscopy: Are we stuck in the 1990s? Why are we still performing so many diagnostic hysteroscopies in the OR, thus subjecting our patients to general anesthesia and using our precious OR time? That is the question asked by a group of researchers in Canada. 

According to data from the Ontario Ministry of Health and Long Term Care, diagnostic hysteroscopy was performed 10,027 times in the 2013-2014 fiscal year. Ontario researchers designed and implemented a quality improvement initiative at their institution and successfully decreased the number of diagnostic hysteroscopies performed in their hospital by 70% from their baseline 12-month period. The improvements resulted in a savings of 78 hours of case costing, or $126,984. When these data are extrapolated to the Ontario population (in which more than  10,000 diagnostic hysteroscopies were performed), potentially 7,000 women could avoid the risk of general anesthesia and the health care system could save $11 million. 

Re-education protocol was key to reducing OR procedures

How did the researchers accomplish their results? The multifaceted intervention had  3 key components:

Staff education and review. Many surgeons were performing diagnostic hysteroscopy in the OR because that is how they were trained, and they were unaware of less invasive options. An awareness campaign was conducted by e-mail, during staff meetings, and at rounds. 

Accessible sonohysterography. This diagnostic modality was made more accessible to referring physicians in a timely manner.

Initiation of an operative hysteroscopy education program. To allow more surgeons greater comfort with office hysteroscopy, the authors instituted didactic sessions, dry and wet lab simulations, and mentorship.  

WHAT THIS EVIDENCE MEANS FOR PRACTICEAlthough some patients may need to have diagnostic hysteroscopy performed in the OR because of difficulty accessing the endometrial cavity, the vast majority of cases can be done in the office with no anesthesia or with local anesthesia. Habit and tradition will not continue to win the day as we head toward providing value-based health care.

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

References
  1. The Organization for Economic Co-operation and Development (OECD). OECD obesity update 2014. http://www.oecd.org/health/Obesity-Update-2014.pdf. Published June 2014. Accessed March 10, 2017.
References
  1. The Organization for Economic Co-operation and Development (OECD). OECD obesity update 2014. http://www.oecd.org/health/Obesity-Update-2014.pdf. Published June 2014. Accessed March 10, 2017.
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Two free, comprehensive drug reference apps for your practice

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The Epocrates and Medscape apps could allow for rapid decision making

I understand that you as an ObGyn do not have the time or bandwidth to “vet” the available mobile apps for your practice. However, that does not mean you need to forgo using apps that could make your clinical life a little easier if possible. In this continuation of my “APP review” series, I focus on drug reference apps, which generally include the names of drugs, their indications, dosages, pharmacology, drug-drug interactions, contraindications, cost, and identifying characteristics.1 Drug reference apps, along with medical calculator and disease diagnosis apps, are reported as most useful by health care professionals and medical or nursing students.1 Drug reference apps are particularly popular among residents and medical students as the apps allow for rapid decision making.2

I have selected 2 drug reference apps—Epocrates and Medscape—to report here as both of these apps are free and are the only apps that appear in independent comprehensive studies.1,3 I particularly like Epocrates’ pill identification function for those patients who have forgotten the name of the medication they use but have the actual pill with them. I find Medscape’s additional information on diseases, conditions, and medical procedures especially useful for the times I have forgotten the condition that the medication is indicated for.

The recommended apps are listed in the TABLE alphabetically and are detailed with a shortened version of the APPLICATIONS scoring system, APPLI (app comprehensiveness, price, platform, literature use, and important special features).4 Visit the OBG Management website to download the apps featured.

Watch for my next column in which I will recommend, according to APPLI, the top apps for patients to use to track their menstrual cycles.

 

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

References
  1. Mosa AS, Yoo I, Sheets L. A systematic review of health care apps for smartphones. BMC Med Inform Decis Mak. 2012;12:67.
  2. Payne KB, Wharrad H, Watts K. Smartphone and medical related app use among medical students and junior doctors in the United Kingdom (UK): a regional survey. BMC Med Inform Decis Mak. 2012;12:121.
  3. Aungst TD. Medical applications for pharmacists using mobile devices. Ann Pharmacother. 2013;47(7-8):1088-1095.
  4. Chyjek K, Farag S, Chen KT. Rating pregnancy wheel applications using the APPLICATIONS scoring system. Obstet Gynecol. 2015;125(6):1478-1483.
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Dr. Chen is an OBG Management Contributing Editor.

The author reports no financial relationships relevant to this article.

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Dr. Chen is an OBG Management Contributing Editor.

The author reports no financial relationships relevant to this article.

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The Epocrates and Medscape apps could allow for rapid decision making
The Epocrates and Medscape apps could allow for rapid decision making

I understand that you as an ObGyn do not have the time or bandwidth to “vet” the available mobile apps for your practice. However, that does not mean you need to forgo using apps that could make your clinical life a little easier if possible. In this continuation of my “APP review” series, I focus on drug reference apps, which generally include the names of drugs, their indications, dosages, pharmacology, drug-drug interactions, contraindications, cost, and identifying characteristics.1 Drug reference apps, along with medical calculator and disease diagnosis apps, are reported as most useful by health care professionals and medical or nursing students.1 Drug reference apps are particularly popular among residents and medical students as the apps allow for rapid decision making.2

I have selected 2 drug reference apps—Epocrates and Medscape—to report here as both of these apps are free and are the only apps that appear in independent comprehensive studies.1,3 I particularly like Epocrates’ pill identification function for those patients who have forgotten the name of the medication they use but have the actual pill with them. I find Medscape’s additional information on diseases, conditions, and medical procedures especially useful for the times I have forgotten the condition that the medication is indicated for.

The recommended apps are listed in the TABLE alphabetically and are detailed with a shortened version of the APPLICATIONS scoring system, APPLI (app comprehensiveness, price, platform, literature use, and important special features).4 Visit the OBG Management website to download the apps featured.

Watch for my next column in which I will recommend, according to APPLI, the top apps for patients to use to track their menstrual cycles.

 

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

I understand that you as an ObGyn do not have the time or bandwidth to “vet” the available mobile apps for your practice. However, that does not mean you need to forgo using apps that could make your clinical life a little easier if possible. In this continuation of my “APP review” series, I focus on drug reference apps, which generally include the names of drugs, their indications, dosages, pharmacology, drug-drug interactions, contraindications, cost, and identifying characteristics.1 Drug reference apps, along with medical calculator and disease diagnosis apps, are reported as most useful by health care professionals and medical or nursing students.1 Drug reference apps are particularly popular among residents and medical students as the apps allow for rapid decision making.2

I have selected 2 drug reference apps—Epocrates and Medscape—to report here as both of these apps are free and are the only apps that appear in independent comprehensive studies.1,3 I particularly like Epocrates’ pill identification function for those patients who have forgotten the name of the medication they use but have the actual pill with them. I find Medscape’s additional information on diseases, conditions, and medical procedures especially useful for the times I have forgotten the condition that the medication is indicated for.

The recommended apps are listed in the TABLE alphabetically and are detailed with a shortened version of the APPLICATIONS scoring system, APPLI (app comprehensiveness, price, platform, literature use, and important special features).4 Visit the OBG Management website to download the apps featured.

Watch for my next column in which I will recommend, according to APPLI, the top apps for patients to use to track their menstrual cycles.

 

Share your thoughts! Send your Letter to the Editor to [email protected]. Please include your name and the city and state in which you practice.

References
  1. Mosa AS, Yoo I, Sheets L. A systematic review of health care apps for smartphones. BMC Med Inform Decis Mak. 2012;12:67.
  2. Payne KB, Wharrad H, Watts K. Smartphone and medical related app use among medical students and junior doctors in the United Kingdom (UK): a regional survey. BMC Med Inform Decis Mak. 2012;12:121.
  3. Aungst TD. Medical applications for pharmacists using mobile devices. Ann Pharmacother. 2013;47(7-8):1088-1095.
  4. Chyjek K, Farag S, Chen KT. Rating pregnancy wheel applications using the APPLICATIONS scoring system. Obstet Gynecol. 2015;125(6):1478-1483.
References
  1. Mosa AS, Yoo I, Sheets L. A systematic review of health care apps for smartphones. BMC Med Inform Decis Mak. 2012;12:67.
  2. Payne KB, Wharrad H, Watts K. Smartphone and medical related app use among medical students and junior doctors in the United Kingdom (UK): a regional survey. BMC Med Inform Decis Mak. 2012;12:121.
  3. Aungst TD. Medical applications for pharmacists using mobile devices. Ann Pharmacother. 2013;47(7-8):1088-1095.
  4. Chyjek K, Farag S, Chen KT. Rating pregnancy wheel applications using the APPLICATIONS scoring system. Obstet Gynecol. 2015;125(6):1478-1483.
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Two free, comprehensive drug reference apps for your practice
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Venetoclax produces durable effects in relapsed/refractory CLL

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– In patients with relapsed or refractory chronic lymphocytic leukemia (CLL), the results with venetoclax continue to be encouraging, and recent findings from a multicenter phase Ib study hint that venetoclax may also provide durable responses – even with treatment discontinuation.

Venetoclax is an orally bioavailable selective BCL2 inhibitor that is typically given in an open-ended fashion. Toxicity – including tumor lysis syndrome – is always a concern, however, and the issue of whether open-ended administration is necessary is an important question, Andrew D. Zelenetz, MD, PhD, said at the annual conference of the National Comprehensive Cancer Network.

In one phase II multicenter study of venetoclax monotherapy in 107 patients with relapsed/refractory CLL with del(17p) at 31 centers in the United States, Canada, and Europe, the overall response rate was 79.4% based on an independent review committee assessment, (Lancet Oncol. 2016[17]:768-78).

Treatment included once-daily venetoclax beginning with a dose of 20 mg that was ramped up to 50, 100, 200, and 400 mg over 4-5 weeks, followed by daily 400 mg continuous dosing until disease progression or discontinuation for another reason.

Dr. Andrew Zelenetz


Notably, 18 of 85 patients from the study who achieved an objective response were minimal residual disease (MRD)–negative in peripheral blood samples – an outcome that has not been seen with tyrosine kinase inhibitors, noted Dr. Zelenetz of Memorial Sloan Kettering Cancer Center, New York.

The durability of venetoclax’s activity in the study was 84.7% at 12 months in all responders; 100% in those who achieved complete response, complete response with incomplete recovery of blood counts, or nodular partial remission; and 94.4% in the MRD-negative patients.

The authors concluded that venetoclax monotherapy is active and well tolerated in patients with relapsed or refractory del(17p) chronic lymphocytic leukemia, and that given the distinct mechanism of action of this new therapeutic option for these very poor-prognosis patients, it deserves further investigation as part of a combination or as part of sequential treatment with other novel targeted agents.

The finding that patients on venetoclax can achieve MRD negativity also raised the question of whether treatment can be stopped, Dr. Zelenetz said.

“Because who wants to be on a drug forever? Nobody,” he added.

This question was explored in a study published in February by Seymour et al., which provided early evidence that stopping treatment may indeed be feasible in some patients (Lancet Oncol. 2017;18[2]:230-40).

Venetoclax in this study was given in a dose-escalating fashion to target doses of 200-600 mg daily, in 49 patients with relapsed or refractory “moderately heavily pretreated” CLL. Rituximab was added at a dose of 375 mg/m2 in month 1 and 500 mg/m2 in months 2-6.

Patients had the option of stopping treatment if they achieved a complete response.

The overall response rate was 86%, including a complete response in 51% of patients. Two-year estimates for progression-free survival and ongoing response were 82% and 89% respectively.

MRD negativity was attained in 80% of complete responders and 57% of patients overall. Thirteen responders discontinued all treatment, and at the time of publication, 11 MRD-negative responders who discontinued therapy remained progression free off therapy. Two MRD-positive patients who achieved complete response and discontinued therapy progressed after 2 years, but were able to recapture response once they restarted the drug.

“So it’s really quite interesting. We might have durable responses after discontinuation of this drug in an MRD-negative state,” Dr. Zelenetz said.

Of note, the latest update to the NCCN guidelines for the treatment of CLL/SLL (small lymphocytic lymphoma) included the addition of “+/– rituximab” as part of the “suggested treatment regimen” of venetoclax in the relapsed/refractory disease setting. This recommendation is category 2A, meaning it is based on lower level evidence with uniform NCCN consensus that the intervention is appropriate.

Venetoclax: adverse events of special interest

In these studies, venetoclax was considered well tolerated, but attention to adverse events and their prevention and management – particularly with respect to tumor lysis syndrome – is essential, Dr. Zelenetz said.

In the phase II study by Stilgenbauer et al., adverse events of special interest included grade 3/4 neutropenia, which occurred in 40% of patients. This was manageable with dose interruptions (five patients) or reductions (four patients), or with granulocyte–colony stimulating factor and antibiotics (six patients, including one who received only antibiotics). None of the patients permanently discontinued treatment.

Infections occurred in 72% of patients, and grade 3 or greater infections occurred in 20% of patients. The most common overall were upper respiratory infections (15%), nasopharyngitis (14%), and urinary tract infections (9%).

Serious infections occurring in two or more patients were pneumonia, lower respiratory tract infection, and upper respiratory tract infection. One patient died from septic shock, 10 had infections leading to venetoclax interruption, and 2 had infections leading to dose reduction.

No mandated infection prophylaxis was used in this study.

Serious adverse events occurred in 59 patients (55%). The most common, occurring in at least 5% of patients, were pyrexia, autoimmune hemolytic anemia, pneumonia, and febrile neutropenia. Thirteen had adverse events leading to dose reductions, most commonly due to neutropenia, thrombocytopenia, and febrile neutropenia.

Laboratory-confirmed tumor lysis syndrome was reported in five patients during the ramp-up period, including four who developed the syndrome within the first 2 days of treatment. All cases resolved without clinical sequelae. Treatment was continued without interruption in three patients with tumor lysis syndrome, who received only electrolyte management, and two patients had a 1-day treatment interruption. Both resumed dosing the next day.

In the phase Ib study by Seymour et al., common grade 1-2 toxicities included upper respiratory tract infections, diarrhea, and nausea occurring in 57%, 55%, and 53% of patients, respectively. Grade 3-4 adverse events occurred in 76% of 49 patients, and most often included neutropenia (12% of patients), thrombocytopenia (16%), anemia (14%), febrile neutropenia (12%), and leukopenia (12%). The most common serious adverse events were pyrexia (12%), febrile neutropenia (10%), lower respiratory tract infection (6%), and pneumonia (6%). Clinical tumor lysis syndrome occurred in two patients who initiated venetoclax at 50 mg, one of whom died as a result.

After enhancement of tumor lysis syndrome prophylaxis measures and reduction of the starting dose of venetoclax to 20 mg, no additional cases occurred, the authors reported.

 

 

Mitigating tumor lysis syndrome risk

General measures for mitigating the risk of tumor lysis syndrome include identification of patients at increased risk, initiation of prophylaxis with hydration and a uric acid reducing agent, and initiation of venetoclax at a 20 mg dose for 1 week, with gradual step-wise ramp-up over 5 weeks to the target dose, Dr. Zelenetz noted.

As reported by Stilgenbauer, et al., patients with a nodal mass less than 5 cm and absolute lymphocyte count (ALC) of 25,000 or less are considered at low risk for tumor lysis syndrome, those with a nodal mass of 5 cm to less than 10 cm or ALC greater than 25,000 are at medium risk, and those with a nodal mass of 10 cm or greater or nodal mass of 5 cm or greater and ALC of greater than 25,000 are considered to be at high risk.

High-risk patients in the study received inpatient venetoclax dosing and monitoring at 4, 8, 12, and 24 hours with 20 mg and 50 mg dosing, as well as outpatient intravenous hydration at 100 mg if there was no indication to hospitalize, and post-dose 8-24 hour laboratory monitoring at 100 mg and above.

Medium-risk patients received IV hydration at 20 and 50 mg dosing, inpatient care if creatinine clearance was less than 80 mL/min or if there was a high tumor burden, and postdose 8- and 24-hour laboratory monitoring after the initial dose and at dose escalations. Low-risk patients received outpatient dosing at all dose levels in the absence of an indication to hospitalize, and postdose 8- and 24-hour laboratory monitoring after the initial dose and at dose increases.

“Unfortunately, the dose-limiting toxicity of venetoclax is fatal tumor lysis,” Dr. Zelenetz said, adding that by increasing the dose slowly over time according to current treatment recommendations – from 20 mg, to 50, 100, 200, and 400 mg at weekly intervals, this complication can be avoided.

Dr. Zelenetz reported receiving consulting fees, honoraria, and/or grant/research support from Genentech, the maker of venetoclax (Venclexta), and a wide variety of other drug companies.

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– In patients with relapsed or refractory chronic lymphocytic leukemia (CLL), the results with venetoclax continue to be encouraging, and recent findings from a multicenter phase Ib study hint that venetoclax may also provide durable responses – even with treatment discontinuation.

Venetoclax is an orally bioavailable selective BCL2 inhibitor that is typically given in an open-ended fashion. Toxicity – including tumor lysis syndrome – is always a concern, however, and the issue of whether open-ended administration is necessary is an important question, Andrew D. Zelenetz, MD, PhD, said at the annual conference of the National Comprehensive Cancer Network.

In one phase II multicenter study of venetoclax monotherapy in 107 patients with relapsed/refractory CLL with del(17p) at 31 centers in the United States, Canada, and Europe, the overall response rate was 79.4% based on an independent review committee assessment, (Lancet Oncol. 2016[17]:768-78).

Treatment included once-daily venetoclax beginning with a dose of 20 mg that was ramped up to 50, 100, 200, and 400 mg over 4-5 weeks, followed by daily 400 mg continuous dosing until disease progression or discontinuation for another reason.

Dr. Andrew Zelenetz


Notably, 18 of 85 patients from the study who achieved an objective response were minimal residual disease (MRD)–negative in peripheral blood samples – an outcome that has not been seen with tyrosine kinase inhibitors, noted Dr. Zelenetz of Memorial Sloan Kettering Cancer Center, New York.

The durability of venetoclax’s activity in the study was 84.7% at 12 months in all responders; 100% in those who achieved complete response, complete response with incomplete recovery of blood counts, or nodular partial remission; and 94.4% in the MRD-negative patients.

The authors concluded that venetoclax monotherapy is active and well tolerated in patients with relapsed or refractory del(17p) chronic lymphocytic leukemia, and that given the distinct mechanism of action of this new therapeutic option for these very poor-prognosis patients, it deserves further investigation as part of a combination or as part of sequential treatment with other novel targeted agents.

The finding that patients on venetoclax can achieve MRD negativity also raised the question of whether treatment can be stopped, Dr. Zelenetz said.

“Because who wants to be on a drug forever? Nobody,” he added.

This question was explored in a study published in February by Seymour et al., which provided early evidence that stopping treatment may indeed be feasible in some patients (Lancet Oncol. 2017;18[2]:230-40).

Venetoclax in this study was given in a dose-escalating fashion to target doses of 200-600 mg daily, in 49 patients with relapsed or refractory “moderately heavily pretreated” CLL. Rituximab was added at a dose of 375 mg/m2 in month 1 and 500 mg/m2 in months 2-6.

Patients had the option of stopping treatment if they achieved a complete response.

The overall response rate was 86%, including a complete response in 51% of patients. Two-year estimates for progression-free survival and ongoing response were 82% and 89% respectively.

MRD negativity was attained in 80% of complete responders and 57% of patients overall. Thirteen responders discontinued all treatment, and at the time of publication, 11 MRD-negative responders who discontinued therapy remained progression free off therapy. Two MRD-positive patients who achieved complete response and discontinued therapy progressed after 2 years, but were able to recapture response once they restarted the drug.

“So it’s really quite interesting. We might have durable responses after discontinuation of this drug in an MRD-negative state,” Dr. Zelenetz said.

Of note, the latest update to the NCCN guidelines for the treatment of CLL/SLL (small lymphocytic lymphoma) included the addition of “+/– rituximab” as part of the “suggested treatment regimen” of venetoclax in the relapsed/refractory disease setting. This recommendation is category 2A, meaning it is based on lower level evidence with uniform NCCN consensus that the intervention is appropriate.

Venetoclax: adverse events of special interest

In these studies, venetoclax was considered well tolerated, but attention to adverse events and their prevention and management – particularly with respect to tumor lysis syndrome – is essential, Dr. Zelenetz said.

In the phase II study by Stilgenbauer et al., adverse events of special interest included grade 3/4 neutropenia, which occurred in 40% of patients. This was manageable with dose interruptions (five patients) or reductions (four patients), or with granulocyte–colony stimulating factor and antibiotics (six patients, including one who received only antibiotics). None of the patients permanently discontinued treatment.

Infections occurred in 72% of patients, and grade 3 or greater infections occurred in 20% of patients. The most common overall were upper respiratory infections (15%), nasopharyngitis (14%), and urinary tract infections (9%).

Serious infections occurring in two or more patients were pneumonia, lower respiratory tract infection, and upper respiratory tract infection. One patient died from septic shock, 10 had infections leading to venetoclax interruption, and 2 had infections leading to dose reduction.

No mandated infection prophylaxis was used in this study.

Serious adverse events occurred in 59 patients (55%). The most common, occurring in at least 5% of patients, were pyrexia, autoimmune hemolytic anemia, pneumonia, and febrile neutropenia. Thirteen had adverse events leading to dose reductions, most commonly due to neutropenia, thrombocytopenia, and febrile neutropenia.

Laboratory-confirmed tumor lysis syndrome was reported in five patients during the ramp-up period, including four who developed the syndrome within the first 2 days of treatment. All cases resolved without clinical sequelae. Treatment was continued without interruption in three patients with tumor lysis syndrome, who received only electrolyte management, and two patients had a 1-day treatment interruption. Both resumed dosing the next day.

In the phase Ib study by Seymour et al., common grade 1-2 toxicities included upper respiratory tract infections, diarrhea, and nausea occurring in 57%, 55%, and 53% of patients, respectively. Grade 3-4 adverse events occurred in 76% of 49 patients, and most often included neutropenia (12% of patients), thrombocytopenia (16%), anemia (14%), febrile neutropenia (12%), and leukopenia (12%). The most common serious adverse events were pyrexia (12%), febrile neutropenia (10%), lower respiratory tract infection (6%), and pneumonia (6%). Clinical tumor lysis syndrome occurred in two patients who initiated venetoclax at 50 mg, one of whom died as a result.

After enhancement of tumor lysis syndrome prophylaxis measures and reduction of the starting dose of venetoclax to 20 mg, no additional cases occurred, the authors reported.

 

 

Mitigating tumor lysis syndrome risk

General measures for mitigating the risk of tumor lysis syndrome include identification of patients at increased risk, initiation of prophylaxis with hydration and a uric acid reducing agent, and initiation of venetoclax at a 20 mg dose for 1 week, with gradual step-wise ramp-up over 5 weeks to the target dose, Dr. Zelenetz noted.

As reported by Stilgenbauer, et al., patients with a nodal mass less than 5 cm and absolute lymphocyte count (ALC) of 25,000 or less are considered at low risk for tumor lysis syndrome, those with a nodal mass of 5 cm to less than 10 cm or ALC greater than 25,000 are at medium risk, and those with a nodal mass of 10 cm or greater or nodal mass of 5 cm or greater and ALC of greater than 25,000 are considered to be at high risk.

High-risk patients in the study received inpatient venetoclax dosing and monitoring at 4, 8, 12, and 24 hours with 20 mg and 50 mg dosing, as well as outpatient intravenous hydration at 100 mg if there was no indication to hospitalize, and post-dose 8-24 hour laboratory monitoring at 100 mg and above.

Medium-risk patients received IV hydration at 20 and 50 mg dosing, inpatient care if creatinine clearance was less than 80 mL/min or if there was a high tumor burden, and postdose 8- and 24-hour laboratory monitoring after the initial dose and at dose escalations. Low-risk patients received outpatient dosing at all dose levels in the absence of an indication to hospitalize, and postdose 8- and 24-hour laboratory monitoring after the initial dose and at dose increases.

“Unfortunately, the dose-limiting toxicity of venetoclax is fatal tumor lysis,” Dr. Zelenetz said, adding that by increasing the dose slowly over time according to current treatment recommendations – from 20 mg, to 50, 100, 200, and 400 mg at weekly intervals, this complication can be avoided.

Dr. Zelenetz reported receiving consulting fees, honoraria, and/or grant/research support from Genentech, the maker of venetoclax (Venclexta), and a wide variety of other drug companies.

 

– In patients with relapsed or refractory chronic lymphocytic leukemia (CLL), the results with venetoclax continue to be encouraging, and recent findings from a multicenter phase Ib study hint that venetoclax may also provide durable responses – even with treatment discontinuation.

Venetoclax is an orally bioavailable selective BCL2 inhibitor that is typically given in an open-ended fashion. Toxicity – including tumor lysis syndrome – is always a concern, however, and the issue of whether open-ended administration is necessary is an important question, Andrew D. Zelenetz, MD, PhD, said at the annual conference of the National Comprehensive Cancer Network.

In one phase II multicenter study of venetoclax monotherapy in 107 patients with relapsed/refractory CLL with del(17p) at 31 centers in the United States, Canada, and Europe, the overall response rate was 79.4% based on an independent review committee assessment, (Lancet Oncol. 2016[17]:768-78).

Treatment included once-daily venetoclax beginning with a dose of 20 mg that was ramped up to 50, 100, 200, and 400 mg over 4-5 weeks, followed by daily 400 mg continuous dosing until disease progression or discontinuation for another reason.

Dr. Andrew Zelenetz


Notably, 18 of 85 patients from the study who achieved an objective response were minimal residual disease (MRD)–negative in peripheral blood samples – an outcome that has not been seen with tyrosine kinase inhibitors, noted Dr. Zelenetz of Memorial Sloan Kettering Cancer Center, New York.

The durability of venetoclax’s activity in the study was 84.7% at 12 months in all responders; 100% in those who achieved complete response, complete response with incomplete recovery of blood counts, or nodular partial remission; and 94.4% in the MRD-negative patients.

The authors concluded that venetoclax monotherapy is active and well tolerated in patients with relapsed or refractory del(17p) chronic lymphocytic leukemia, and that given the distinct mechanism of action of this new therapeutic option for these very poor-prognosis patients, it deserves further investigation as part of a combination or as part of sequential treatment with other novel targeted agents.

The finding that patients on venetoclax can achieve MRD negativity also raised the question of whether treatment can be stopped, Dr. Zelenetz said.

“Because who wants to be on a drug forever? Nobody,” he added.

This question was explored in a study published in February by Seymour et al., which provided early evidence that stopping treatment may indeed be feasible in some patients (Lancet Oncol. 2017;18[2]:230-40).

Venetoclax in this study was given in a dose-escalating fashion to target doses of 200-600 mg daily, in 49 patients with relapsed or refractory “moderately heavily pretreated” CLL. Rituximab was added at a dose of 375 mg/m2 in month 1 and 500 mg/m2 in months 2-6.

Patients had the option of stopping treatment if they achieved a complete response.

The overall response rate was 86%, including a complete response in 51% of patients. Two-year estimates for progression-free survival and ongoing response were 82% and 89% respectively.

MRD negativity was attained in 80% of complete responders and 57% of patients overall. Thirteen responders discontinued all treatment, and at the time of publication, 11 MRD-negative responders who discontinued therapy remained progression free off therapy. Two MRD-positive patients who achieved complete response and discontinued therapy progressed after 2 years, but were able to recapture response once they restarted the drug.

“So it’s really quite interesting. We might have durable responses after discontinuation of this drug in an MRD-negative state,” Dr. Zelenetz said.

Of note, the latest update to the NCCN guidelines for the treatment of CLL/SLL (small lymphocytic lymphoma) included the addition of “+/– rituximab” as part of the “suggested treatment regimen” of venetoclax in the relapsed/refractory disease setting. This recommendation is category 2A, meaning it is based on lower level evidence with uniform NCCN consensus that the intervention is appropriate.

Venetoclax: adverse events of special interest

In these studies, venetoclax was considered well tolerated, but attention to adverse events and their prevention and management – particularly with respect to tumor lysis syndrome – is essential, Dr. Zelenetz said.

In the phase II study by Stilgenbauer et al., adverse events of special interest included grade 3/4 neutropenia, which occurred in 40% of patients. This was manageable with dose interruptions (five patients) or reductions (four patients), or with granulocyte–colony stimulating factor and antibiotics (six patients, including one who received only antibiotics). None of the patients permanently discontinued treatment.

Infections occurred in 72% of patients, and grade 3 or greater infections occurred in 20% of patients. The most common overall were upper respiratory infections (15%), nasopharyngitis (14%), and urinary tract infections (9%).

Serious infections occurring in two or more patients were pneumonia, lower respiratory tract infection, and upper respiratory tract infection. One patient died from septic shock, 10 had infections leading to venetoclax interruption, and 2 had infections leading to dose reduction.

No mandated infection prophylaxis was used in this study.

Serious adverse events occurred in 59 patients (55%). The most common, occurring in at least 5% of patients, were pyrexia, autoimmune hemolytic anemia, pneumonia, and febrile neutropenia. Thirteen had adverse events leading to dose reductions, most commonly due to neutropenia, thrombocytopenia, and febrile neutropenia.

Laboratory-confirmed tumor lysis syndrome was reported in five patients during the ramp-up period, including four who developed the syndrome within the first 2 days of treatment. All cases resolved without clinical sequelae. Treatment was continued without interruption in three patients with tumor lysis syndrome, who received only electrolyte management, and two patients had a 1-day treatment interruption. Both resumed dosing the next day.

In the phase Ib study by Seymour et al., common grade 1-2 toxicities included upper respiratory tract infections, diarrhea, and nausea occurring in 57%, 55%, and 53% of patients, respectively. Grade 3-4 adverse events occurred in 76% of 49 patients, and most often included neutropenia (12% of patients), thrombocytopenia (16%), anemia (14%), febrile neutropenia (12%), and leukopenia (12%). The most common serious adverse events were pyrexia (12%), febrile neutropenia (10%), lower respiratory tract infection (6%), and pneumonia (6%). Clinical tumor lysis syndrome occurred in two patients who initiated venetoclax at 50 mg, one of whom died as a result.

After enhancement of tumor lysis syndrome prophylaxis measures and reduction of the starting dose of venetoclax to 20 mg, no additional cases occurred, the authors reported.

 

 

Mitigating tumor lysis syndrome risk

General measures for mitigating the risk of tumor lysis syndrome include identification of patients at increased risk, initiation of prophylaxis with hydration and a uric acid reducing agent, and initiation of venetoclax at a 20 mg dose for 1 week, with gradual step-wise ramp-up over 5 weeks to the target dose, Dr. Zelenetz noted.

As reported by Stilgenbauer, et al., patients with a nodal mass less than 5 cm and absolute lymphocyte count (ALC) of 25,000 or less are considered at low risk for tumor lysis syndrome, those with a nodal mass of 5 cm to less than 10 cm or ALC greater than 25,000 are at medium risk, and those with a nodal mass of 10 cm or greater or nodal mass of 5 cm or greater and ALC of greater than 25,000 are considered to be at high risk.

High-risk patients in the study received inpatient venetoclax dosing and monitoring at 4, 8, 12, and 24 hours with 20 mg and 50 mg dosing, as well as outpatient intravenous hydration at 100 mg if there was no indication to hospitalize, and post-dose 8-24 hour laboratory monitoring at 100 mg and above.

Medium-risk patients received IV hydration at 20 and 50 mg dosing, inpatient care if creatinine clearance was less than 80 mL/min or if there was a high tumor burden, and postdose 8- and 24-hour laboratory monitoring after the initial dose and at dose escalations. Low-risk patients received outpatient dosing at all dose levels in the absence of an indication to hospitalize, and postdose 8- and 24-hour laboratory monitoring after the initial dose and at dose increases.

“Unfortunately, the dose-limiting toxicity of venetoclax is fatal tumor lysis,” Dr. Zelenetz said, adding that by increasing the dose slowly over time according to current treatment recommendations – from 20 mg, to 50, 100, 200, and 400 mg at weekly intervals, this complication can be avoided.

Dr. Zelenetz reported receiving consulting fees, honoraria, and/or grant/research support from Genentech, the maker of venetoclax (Venclexta), and a wide variety of other drug companies.

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