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Heart disease in GPA exacts high toll in year 2 and beyond
LIVERPOOL, ENGLAND – Cardiovascular disease was the predominant cause of death of patients with granulomatosis with polyangiitis 1-5 years after a diagnosis in a study by U.K. researchers, suggesting that this could be a target for future intervention.
While active disease was the No. 1 cause of death within the first year of diagnosis in 40% of patients with granulomatosis with polyangiitis (GPA), it was overtaken by cardiovascular disease (CVD) as the main cause of death in 37.5% of patients in the next 4 years from diagnosis.
“The idea for this study came from patients with vasculitis who were polled by Vasculitis UK,” Fiona A. Pearce, MBBS, explained at the British Society for Rheumatology annual conference.
“Further research into mortality was one of their top priorities as patients want to know the honest truth about what is going to happen to them,” added Dr. Pearce, of the division of epidemiology and public health at the University of Nottingham (England).
GPA is a rare type of vasculitis that is estimated to occur in around 1,350 people every year in the United Kingdom. Mortality is known to be high, with around 11%-14% of patients dying in the first year of diagnosis, but there are few data on what happens over a longer term.
The aim of the study was therefore to examine patient survival in the long term – what were the mortality rates several years post diagnosis? Did the risk of death remain high throughout this time and did the causes of death change?
“Of course, the important clinical question was, “Can we then improve things?’ ” Dr. Pearce said.
Two U.K. databases – Clinical Practice Research Datalink and Hospital Episode Statistics – were used to identify patients with GPA diagnosed between 1998 and 2014 and match each case to 10 controls based on age, gender, and family practice. Data on the cause and date of any deaths were then obtained from the Office of National Statistics.
Overall, 465 cases of GPA were matched to 4,610 controls. The median age of participants was 61 years and 57% were male. There were 50 cases with more than 10 years of follow-up data available and data on 139 deaths could be analyzed.
A survival analysis showed that there was a significant reduction in cases versus controls, “but it’s not a constant,” Dr. Pearce noted.
“In the time immediately after diagnosis, the risk of death in people with GPA is very high, and over the first 6 months it tails off.” Then the mortalities are very similar, albeit much lower, to those of controls, but with another dip around 8 years.
The number at risk of death in the second year was 310 for GPA vs. 3,543 for controls and 230 vs. 2,622 at 4 years, 138 vs. 1,704 at 6 years, 93 vs. 1,136 at 8 years, and 49 vs. 658 at 10 years.
Looking at the data another way, the hazard ratios for death comparing GPA cases to controls was 24.5 in the first month, 14.6 in months 1-2, 7.5 by 2-3 months, 4.3 at 3-6 months, 1.6 at 6 months to 8 years, and 3.2 at 8-10 years.
Mortality seems to have improved with time. Splitting the cohort into two time periods based on their diagnosis, those diagnosed between 2008 and 2014 had a lower risk of death than did those diagnosed between 1998 and 2007, although it was still more than four times higher than the background population.
The leading cause of death in patients with GPA 5-10 years after diagnosis was cancer (30.3% of cases), but when this was compared against the general population, the risk was no greater (hazard ratio, 1.0).
GPA cases were also 2.9 times more likely than controls to die as a result of an infection, suggesting that this together with CVD could be a target for mortality reduction strategies.
“We can’t get away from the fact that although this is a large study, there are still small numbers of patients because this is rare disease,” Dr. Pearce observed. “We also don’t have detailed clinical information on each patient, so we can’t look for associations or clinical phenotypes at diagnosis, and there are no biomarkers.”
From a clinical perspective, she noted, it is important to remember that deaths in the first year are mainly from active disease and to continue to try to diagnose and treat the condition as early as possible.
Arthritis Research UK funded the trial. Dr. Pearce had nothing to disclose.
SOURCE: Pearce F et al. Rheumatology. 2018;57(Suppl. 3):key075.204.
LIVERPOOL, ENGLAND – Cardiovascular disease was the predominant cause of death of patients with granulomatosis with polyangiitis 1-5 years after a diagnosis in a study by U.K. researchers, suggesting that this could be a target for future intervention.
While active disease was the No. 1 cause of death within the first year of diagnosis in 40% of patients with granulomatosis with polyangiitis (GPA), it was overtaken by cardiovascular disease (CVD) as the main cause of death in 37.5% of patients in the next 4 years from diagnosis.
“The idea for this study came from patients with vasculitis who were polled by Vasculitis UK,” Fiona A. Pearce, MBBS, explained at the British Society for Rheumatology annual conference.
“Further research into mortality was one of their top priorities as patients want to know the honest truth about what is going to happen to them,” added Dr. Pearce, of the division of epidemiology and public health at the University of Nottingham (England).
GPA is a rare type of vasculitis that is estimated to occur in around 1,350 people every year in the United Kingdom. Mortality is known to be high, with around 11%-14% of patients dying in the first year of diagnosis, but there are few data on what happens over a longer term.
The aim of the study was therefore to examine patient survival in the long term – what were the mortality rates several years post diagnosis? Did the risk of death remain high throughout this time and did the causes of death change?
“Of course, the important clinical question was, “Can we then improve things?’ ” Dr. Pearce said.
Two U.K. databases – Clinical Practice Research Datalink and Hospital Episode Statistics – were used to identify patients with GPA diagnosed between 1998 and 2014 and match each case to 10 controls based on age, gender, and family practice. Data on the cause and date of any deaths were then obtained from the Office of National Statistics.
Overall, 465 cases of GPA were matched to 4,610 controls. The median age of participants was 61 years and 57% were male. There were 50 cases with more than 10 years of follow-up data available and data on 139 deaths could be analyzed.
A survival analysis showed that there was a significant reduction in cases versus controls, “but it’s not a constant,” Dr. Pearce noted.
“In the time immediately after diagnosis, the risk of death in people with GPA is very high, and over the first 6 months it tails off.” Then the mortalities are very similar, albeit much lower, to those of controls, but with another dip around 8 years.
The number at risk of death in the second year was 310 for GPA vs. 3,543 for controls and 230 vs. 2,622 at 4 years, 138 vs. 1,704 at 6 years, 93 vs. 1,136 at 8 years, and 49 vs. 658 at 10 years.
Looking at the data another way, the hazard ratios for death comparing GPA cases to controls was 24.5 in the first month, 14.6 in months 1-2, 7.5 by 2-3 months, 4.3 at 3-6 months, 1.6 at 6 months to 8 years, and 3.2 at 8-10 years.
Mortality seems to have improved with time. Splitting the cohort into two time periods based on their diagnosis, those diagnosed between 2008 and 2014 had a lower risk of death than did those diagnosed between 1998 and 2007, although it was still more than four times higher than the background population.
The leading cause of death in patients with GPA 5-10 years after diagnosis was cancer (30.3% of cases), but when this was compared against the general population, the risk was no greater (hazard ratio, 1.0).
GPA cases were also 2.9 times more likely than controls to die as a result of an infection, suggesting that this together with CVD could be a target for mortality reduction strategies.
“We can’t get away from the fact that although this is a large study, there are still small numbers of patients because this is rare disease,” Dr. Pearce observed. “We also don’t have detailed clinical information on each patient, so we can’t look for associations or clinical phenotypes at diagnosis, and there are no biomarkers.”
From a clinical perspective, she noted, it is important to remember that deaths in the first year are mainly from active disease and to continue to try to diagnose and treat the condition as early as possible.
Arthritis Research UK funded the trial. Dr. Pearce had nothing to disclose.
SOURCE: Pearce F et al. Rheumatology. 2018;57(Suppl. 3):key075.204.
LIVERPOOL, ENGLAND – Cardiovascular disease was the predominant cause of death of patients with granulomatosis with polyangiitis 1-5 years after a diagnosis in a study by U.K. researchers, suggesting that this could be a target for future intervention.
While active disease was the No. 1 cause of death within the first year of diagnosis in 40% of patients with granulomatosis with polyangiitis (GPA), it was overtaken by cardiovascular disease (CVD) as the main cause of death in 37.5% of patients in the next 4 years from diagnosis.
“The idea for this study came from patients with vasculitis who were polled by Vasculitis UK,” Fiona A. Pearce, MBBS, explained at the British Society for Rheumatology annual conference.
“Further research into mortality was one of their top priorities as patients want to know the honest truth about what is going to happen to them,” added Dr. Pearce, of the division of epidemiology and public health at the University of Nottingham (England).
GPA is a rare type of vasculitis that is estimated to occur in around 1,350 people every year in the United Kingdom. Mortality is known to be high, with around 11%-14% of patients dying in the first year of diagnosis, but there are few data on what happens over a longer term.
The aim of the study was therefore to examine patient survival in the long term – what were the mortality rates several years post diagnosis? Did the risk of death remain high throughout this time and did the causes of death change?
“Of course, the important clinical question was, “Can we then improve things?’ ” Dr. Pearce said.
Two U.K. databases – Clinical Practice Research Datalink and Hospital Episode Statistics – were used to identify patients with GPA diagnosed between 1998 and 2014 and match each case to 10 controls based on age, gender, and family practice. Data on the cause and date of any deaths were then obtained from the Office of National Statistics.
Overall, 465 cases of GPA were matched to 4,610 controls. The median age of participants was 61 years and 57% were male. There were 50 cases with more than 10 years of follow-up data available and data on 139 deaths could be analyzed.
A survival analysis showed that there was a significant reduction in cases versus controls, “but it’s not a constant,” Dr. Pearce noted.
“In the time immediately after diagnosis, the risk of death in people with GPA is very high, and over the first 6 months it tails off.” Then the mortalities are very similar, albeit much lower, to those of controls, but with another dip around 8 years.
The number at risk of death in the second year was 310 for GPA vs. 3,543 for controls and 230 vs. 2,622 at 4 years, 138 vs. 1,704 at 6 years, 93 vs. 1,136 at 8 years, and 49 vs. 658 at 10 years.
Looking at the data another way, the hazard ratios for death comparing GPA cases to controls was 24.5 in the first month, 14.6 in months 1-2, 7.5 by 2-3 months, 4.3 at 3-6 months, 1.6 at 6 months to 8 years, and 3.2 at 8-10 years.
Mortality seems to have improved with time. Splitting the cohort into two time periods based on their diagnosis, those diagnosed between 2008 and 2014 had a lower risk of death than did those diagnosed between 1998 and 2007, although it was still more than four times higher than the background population.
The leading cause of death in patients with GPA 5-10 years after diagnosis was cancer (30.3% of cases), but when this was compared against the general population, the risk was no greater (hazard ratio, 1.0).
GPA cases were also 2.9 times more likely than controls to die as a result of an infection, suggesting that this together with CVD could be a target for mortality reduction strategies.
“We can’t get away from the fact that although this is a large study, there are still small numbers of patients because this is rare disease,” Dr. Pearce observed. “We also don’t have detailed clinical information on each patient, so we can’t look for associations or clinical phenotypes at diagnosis, and there are no biomarkers.”
From a clinical perspective, she noted, it is important to remember that deaths in the first year are mainly from active disease and to continue to try to diagnose and treat the condition as early as possible.
Arthritis Research UK funded the trial. Dr. Pearce had nothing to disclose.
SOURCE: Pearce F et al. Rheumatology. 2018;57(Suppl. 3):key075.204.
REPORTING FROM RHEUMATOLOGY 2018
Key clinical point:
Major finding: The main cause of death changed from active disease (40% of all cases) within the first year to cardiovascular disease at years 1-5 (37.5%).
Study details: Retrospective cohort study of 465 individuals newly diagnosed with granulomatosis with polyangiitis matched to 4,610 controls from the general U.K. primary care population.
Disclosures: Arthritis Research UK funded the trial. Dr. Pearce had nothing to disclose.
Source: Pearce F et al. Rheumatology. 2018;57(Suppl. 3):key075.204.
Hospitalist movers and shakers – May 2018
Dr. Lenchus serves as the Society of Hospital Medicine’s Public Policy Committee chair. He is noted for his work as a clinician, hospital administrator, educator, and researcher.
J. Kevin Shushtari, MD, FHM, recently was named chief medical officer at the New Britain (Conn.) Hospital for Special Care, where he will focus on managing the medical staff, admissions, credentials, infection prevention, and clinical affiliations.
Tianzhong Yang, MD, has been selected as the new long-term care medical director for Van Dyk Healthcare in Montclair, N.J. Dr. Yang began his career 3 decades ago in China and has been a hospitalist at Hackensack University Medical Center Mountainside, also in Montclair, since 2013.
Dr. Yang has been an instructor at Brigham and Women’s Hospital in Boston, specializing in anesthesiology. At Van Dyk, he will work with the nursing staff to help patients recover their independence outside of the hospital setting.
Brent W. Burkey, MD, SFHM, a longtime hospitalist at the Cleveland Clinic, has been named the president of Fisher-Titus Medical Center in Norwalk, Ohio. Dr. Burkey has been the chief medical officer at the Cleveland Clinic’s Avon, Ohio, location the past 2 years. He helped the clinic open the Avon hospital in 2016 when he served as vice president of medical affairs.
Dr. Burkey has been a clinical hospitalist since 2004, and he has a master’s degree in business administration from Cleveland State University. He will run all hospital and medical center operations at Fisher-Titus, including quality and safety.
Dr. Maiona has extensive experience as a practicing hospital physician and as an executive. Most recently, he served as national medical director for TeamHealth of Knoxville, Tenn. He also has been an instructor at Tufts University and Harvard Medical School, both in Boston.
Tom Cummins, MD, has been appointed chief medical officer at Bon Secours St. Francis Health System in Greenville, S.C. Dr. Cummins comes to Bon Secours from Catholic Health Initiatives St. Vincent, Arkansas, where he was senior vice president and CMO; he also first served as a hospitalist within that system.
At Bon Secours, Dr. Cummins will oversee the regional health system’s 11 facilities, including St. Francis Downtown in Judson, S.C., and St. Francis Eastside in Greenville.
BUSINESS MOVES
The South Korean government recently announced that it has given permission for all general hospitals that use integrated nursing care to take part in a hospitalist system.
The Korean hospitalist program is a pilot in which those physicians provide all medical care for inpatients. It was adopted in September 2016, and 15 hospitals take part in the program. Prior to the recent ruling, those facilities with integrated nursing services were not eligible for the hospitalist program.
Surgical Affiliates (Sacramento, Calif.), a provider of surgical hospitalist services, has announced a partnership with Regional Medical Center in San Jose, Calif. The surgical hospitalists will assist and support local providers, providing 24/7 access to RMC of San Jose, a Level II trauma center.
Dr. Lenchus serves as the Society of Hospital Medicine’s Public Policy Committee chair. He is noted for his work as a clinician, hospital administrator, educator, and researcher.
J. Kevin Shushtari, MD, FHM, recently was named chief medical officer at the New Britain (Conn.) Hospital for Special Care, where he will focus on managing the medical staff, admissions, credentials, infection prevention, and clinical affiliations.
Tianzhong Yang, MD, has been selected as the new long-term care medical director for Van Dyk Healthcare in Montclair, N.J. Dr. Yang began his career 3 decades ago in China and has been a hospitalist at Hackensack University Medical Center Mountainside, also in Montclair, since 2013.
Dr. Yang has been an instructor at Brigham and Women’s Hospital in Boston, specializing in anesthesiology. At Van Dyk, he will work with the nursing staff to help patients recover their independence outside of the hospital setting.
Brent W. Burkey, MD, SFHM, a longtime hospitalist at the Cleveland Clinic, has been named the president of Fisher-Titus Medical Center in Norwalk, Ohio. Dr. Burkey has been the chief medical officer at the Cleveland Clinic’s Avon, Ohio, location the past 2 years. He helped the clinic open the Avon hospital in 2016 when he served as vice president of medical affairs.
Dr. Burkey has been a clinical hospitalist since 2004, and he has a master’s degree in business administration from Cleveland State University. He will run all hospital and medical center operations at Fisher-Titus, including quality and safety.
Dr. Maiona has extensive experience as a practicing hospital physician and as an executive. Most recently, he served as national medical director for TeamHealth of Knoxville, Tenn. He also has been an instructor at Tufts University and Harvard Medical School, both in Boston.
Tom Cummins, MD, has been appointed chief medical officer at Bon Secours St. Francis Health System in Greenville, S.C. Dr. Cummins comes to Bon Secours from Catholic Health Initiatives St. Vincent, Arkansas, where he was senior vice president and CMO; he also first served as a hospitalist within that system.
At Bon Secours, Dr. Cummins will oversee the regional health system’s 11 facilities, including St. Francis Downtown in Judson, S.C., and St. Francis Eastside in Greenville.
BUSINESS MOVES
The South Korean government recently announced that it has given permission for all general hospitals that use integrated nursing care to take part in a hospitalist system.
The Korean hospitalist program is a pilot in which those physicians provide all medical care for inpatients. It was adopted in September 2016, and 15 hospitals take part in the program. Prior to the recent ruling, those facilities with integrated nursing services were not eligible for the hospitalist program.
Surgical Affiliates (Sacramento, Calif.), a provider of surgical hospitalist services, has announced a partnership with Regional Medical Center in San Jose, Calif. The surgical hospitalists will assist and support local providers, providing 24/7 access to RMC of San Jose, a Level II trauma center.
Dr. Lenchus serves as the Society of Hospital Medicine’s Public Policy Committee chair. He is noted for his work as a clinician, hospital administrator, educator, and researcher.
J. Kevin Shushtari, MD, FHM, recently was named chief medical officer at the New Britain (Conn.) Hospital for Special Care, where he will focus on managing the medical staff, admissions, credentials, infection prevention, and clinical affiliations.
Tianzhong Yang, MD, has been selected as the new long-term care medical director for Van Dyk Healthcare in Montclair, N.J. Dr. Yang began his career 3 decades ago in China and has been a hospitalist at Hackensack University Medical Center Mountainside, also in Montclair, since 2013.
Dr. Yang has been an instructor at Brigham and Women’s Hospital in Boston, specializing in anesthesiology. At Van Dyk, he will work with the nursing staff to help patients recover their independence outside of the hospital setting.
Brent W. Burkey, MD, SFHM, a longtime hospitalist at the Cleveland Clinic, has been named the president of Fisher-Titus Medical Center in Norwalk, Ohio. Dr. Burkey has been the chief medical officer at the Cleveland Clinic’s Avon, Ohio, location the past 2 years. He helped the clinic open the Avon hospital in 2016 when he served as vice president of medical affairs.
Dr. Burkey has been a clinical hospitalist since 2004, and he has a master’s degree in business administration from Cleveland State University. He will run all hospital and medical center operations at Fisher-Titus, including quality and safety.
Dr. Maiona has extensive experience as a practicing hospital physician and as an executive. Most recently, he served as national medical director for TeamHealth of Knoxville, Tenn. He also has been an instructor at Tufts University and Harvard Medical School, both in Boston.
Tom Cummins, MD, has been appointed chief medical officer at Bon Secours St. Francis Health System in Greenville, S.C. Dr. Cummins comes to Bon Secours from Catholic Health Initiatives St. Vincent, Arkansas, where he was senior vice president and CMO; he also first served as a hospitalist within that system.
At Bon Secours, Dr. Cummins will oversee the regional health system’s 11 facilities, including St. Francis Downtown in Judson, S.C., and St. Francis Eastside in Greenville.
BUSINESS MOVES
The South Korean government recently announced that it has given permission for all general hospitals that use integrated nursing care to take part in a hospitalist system.
The Korean hospitalist program is a pilot in which those physicians provide all medical care for inpatients. It was adopted in September 2016, and 15 hospitals take part in the program. Prior to the recent ruling, those facilities with integrated nursing services were not eligible for the hospitalist program.
Surgical Affiliates (Sacramento, Calif.), a provider of surgical hospitalist services, has announced a partnership with Regional Medical Center in San Jose, Calif. The surgical hospitalists will assist and support local providers, providing 24/7 access to RMC of San Jose, a Level II trauma center.
Basic technique of vaginal hysterectomy

Visit the Society of Gynecologic Surgeons online: sgsonline.org
Additional videos from SGS are available here, including these recent offerings:

Visit the Society of Gynecologic Surgeons online: sgsonline.org
Additional videos from SGS are available here, including these recent offerings:

Visit the Society of Gynecologic Surgeons online: sgsonline.org
Additional videos from SGS are available here, including these recent offerings:
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Targetable genetic alterations found in 41% of soft tissue sarcomas
, reported Carlo Lucchesi, PhD, of Institut Bergonié in Bordeaux, France, and his associates.
In a cross-sectional study of next-generation sequencing results from 584 patients with soft tissue sarcomas in the American Association for Cancer Research’s GENIE Database, 57% of patients had complex genomics sarcomas (sarcomas with multiple, complex karyotypic abnormalities with no specific pattern), 25% had translocation-related sarcomas (sarcomas with specific reciprocal translocations resulting in oncogenic fusion transcripts), and 18% had simple amplicon sarcomas or sarcomas with inactivating mutations.
A total of 2,697 alterations (1,154 substitutions, 765 gene amplifications, 364 short indels and splicing variants, 346 gene homozygous deletions, and 68 gene rearrangements) were identified in 451 genes. A median of four alterations per case were detected, the researchers wrote in a study published online May 3 in JAMA Oncology.
The researchers identified the 20 genes that were most often altered. The top 5 were TP53, MDM2, CDK4, RB1, and ATRX.
Among these 584 samples, 85% had at least one alteration. The proportions of affected patients in each sarcoma group varied significantly among groups, with the other sarcomas group being the most altered (90.8%) and translocation-related sarcomas being the least mutated (77.8%).
At least one relevant gene alteration that could potentially be used to guide targeted therapy was found in 239 cases (41%) with a statistically significant higher number in other sarcomas (89 cases) and complex genomics sarcomas (131 cases) than in translocation-related sarcomas (19 cases).
This finding of an “unexpectedly high frequency” of clinically relevant genetic alterations supports the premise of the soon-to-be-launched MULTISARC trial, which posits that next-generation sequencing results can be used to guide and improve the treatment outcomes of patients with advanced soft tissue sarcomas. For MULTISARC, such patients will be randomized either to an experimental group that will undergo exome and RNA sequencing – and their results will be discussed in a molecular tumor board to tailor the treatment – or to a control group that will not undergo molecular profiling and will receive conventional therapy. The program will include 16 targeted therapies.
The researchers reported having no relevant financial conflicts of interest.
SOURCE: Lucchesi C et al. JAMA Oncol. doi: 10.1001/jamaoncol.2018.0723.
, reported Carlo Lucchesi, PhD, of Institut Bergonié in Bordeaux, France, and his associates.
In a cross-sectional study of next-generation sequencing results from 584 patients with soft tissue sarcomas in the American Association for Cancer Research’s GENIE Database, 57% of patients had complex genomics sarcomas (sarcomas with multiple, complex karyotypic abnormalities with no specific pattern), 25% had translocation-related sarcomas (sarcomas with specific reciprocal translocations resulting in oncogenic fusion transcripts), and 18% had simple amplicon sarcomas or sarcomas with inactivating mutations.
A total of 2,697 alterations (1,154 substitutions, 765 gene amplifications, 364 short indels and splicing variants, 346 gene homozygous deletions, and 68 gene rearrangements) were identified in 451 genes. A median of four alterations per case were detected, the researchers wrote in a study published online May 3 in JAMA Oncology.
The researchers identified the 20 genes that were most often altered. The top 5 were TP53, MDM2, CDK4, RB1, and ATRX.
Among these 584 samples, 85% had at least one alteration. The proportions of affected patients in each sarcoma group varied significantly among groups, with the other sarcomas group being the most altered (90.8%) and translocation-related sarcomas being the least mutated (77.8%).
At least one relevant gene alteration that could potentially be used to guide targeted therapy was found in 239 cases (41%) with a statistically significant higher number in other sarcomas (89 cases) and complex genomics sarcomas (131 cases) than in translocation-related sarcomas (19 cases).
This finding of an “unexpectedly high frequency” of clinically relevant genetic alterations supports the premise of the soon-to-be-launched MULTISARC trial, which posits that next-generation sequencing results can be used to guide and improve the treatment outcomes of patients with advanced soft tissue sarcomas. For MULTISARC, such patients will be randomized either to an experimental group that will undergo exome and RNA sequencing – and their results will be discussed in a molecular tumor board to tailor the treatment – or to a control group that will not undergo molecular profiling and will receive conventional therapy. The program will include 16 targeted therapies.
The researchers reported having no relevant financial conflicts of interest.
SOURCE: Lucchesi C et al. JAMA Oncol. doi: 10.1001/jamaoncol.2018.0723.
, reported Carlo Lucchesi, PhD, of Institut Bergonié in Bordeaux, France, and his associates.
In a cross-sectional study of next-generation sequencing results from 584 patients with soft tissue sarcomas in the American Association for Cancer Research’s GENIE Database, 57% of patients had complex genomics sarcomas (sarcomas with multiple, complex karyotypic abnormalities with no specific pattern), 25% had translocation-related sarcomas (sarcomas with specific reciprocal translocations resulting in oncogenic fusion transcripts), and 18% had simple amplicon sarcomas or sarcomas with inactivating mutations.
A total of 2,697 alterations (1,154 substitutions, 765 gene amplifications, 364 short indels and splicing variants, 346 gene homozygous deletions, and 68 gene rearrangements) were identified in 451 genes. A median of four alterations per case were detected, the researchers wrote in a study published online May 3 in JAMA Oncology.
The researchers identified the 20 genes that were most often altered. The top 5 were TP53, MDM2, CDK4, RB1, and ATRX.
Among these 584 samples, 85% had at least one alteration. The proportions of affected patients in each sarcoma group varied significantly among groups, with the other sarcomas group being the most altered (90.8%) and translocation-related sarcomas being the least mutated (77.8%).
At least one relevant gene alteration that could potentially be used to guide targeted therapy was found in 239 cases (41%) with a statistically significant higher number in other sarcomas (89 cases) and complex genomics sarcomas (131 cases) than in translocation-related sarcomas (19 cases).
This finding of an “unexpectedly high frequency” of clinically relevant genetic alterations supports the premise of the soon-to-be-launched MULTISARC trial, which posits that next-generation sequencing results can be used to guide and improve the treatment outcomes of patients with advanced soft tissue sarcomas. For MULTISARC, such patients will be randomized either to an experimental group that will undergo exome and RNA sequencing – and their results will be discussed in a molecular tumor board to tailor the treatment – or to a control group that will not undergo molecular profiling and will receive conventional therapy. The program will include 16 targeted therapies.
The researchers reported having no relevant financial conflicts of interest.
SOURCE: Lucchesi C et al. JAMA Oncol. doi: 10.1001/jamaoncol.2018.0723.
FROM JAMA ONCOLOGY
Key clinical point: Next-generation sequencing results might prove useful for guiding targeted therapy that could improve the treatment outcomes of patients with advanced soft tissue sarcomas.
Major finding: At least one targetable genetic alteration was found in 41% of 584 soft tissue sarcomas, and the probability of an alteration was higher in sarcomas with complex genomics than in translocation-related sarcomas.
Study details: A cross-sectional study of next-generation sequencing results from 584 patients with soft tissue sarcomas in the AACR GENIE Database.
Disclosures: The researchers reported having no relevant financial conflicts of interest.
Source: Lucchesi C et al. JAMA Oncol. doi: 10.1001/jamaoncol.2018.0723.
Did unsafe oxytocin dose cause uterine rupture? $3.5M settlement
Did unsafe oxytocin dose cause uterine rupture? $3.5M settlement
When a mother presented to the hospital in labor, the on-call ObGyn ordered oxytocin with the dosage to be increased by 2 mU/min until she was receiving 30 mU/min or until an adequate contraction pattern was achieved and maintained. Over the next few hours, the labor and delivery nurse increased the dosage of the infusion several times.
As the patient began to push, a trickle of bright red blood was seen coming from her vagina and the baby's heart tones were temporarily lost. When the fetal heart tones were restored, his heart rate was approximately 50 bpm. After vaginal delivery was attempted using vacuum extraction and forceps, an emergency cesarean delivery was performed, leading to the finding that the mother's uterus had ruptured.
The baby suffered a permanent brain injury due to hypoxic-ischemic encephalopathy.
PATIENT'S CLAIM: The mother sued the hospital and on-call ObGyn. She alleged that the health care providers breached the standard of care by negligently increasing and maintaining the oxytocin at unsafe levels, which caused the mother's uterus to be overworked and eventually rupture. The rupture led to the child's hypoxia. An expert ObGyn noted that the patient's contractions were adequate by the time the oxytocin dose reached 14 mU/min, but the dosage continued to be increased.
DEFENDANTS' DEFENSE: The case was settled during the trial.
VERDICT: A $3.5 million Kansas settlement was reached.
When did the bowel injury occur?
One day after undergoing a hysterectomy, a woman went to the emergency department (ED) because she was feeling ill. She received a diagnosis of a pulmonary embolism for which she was given anticoagulant medications. The patient's symptoms persisted. Computed tomography (CT) imaging showed a bowel injury, and, 17 days after the initial surgery, an emergency laparotomy was performed.
PATIENT'S CLAIM: The patient sued the surgeon and the hospital. The hospital settled before the trial and the case continued against the surgeon.
The patient's early symptoms after surgery were evidence of a bowel injury, but imaging was not undertaken for several days. If the imaging had been undertaken earlier, the bowel injury would have been detected before it caused a rectovaginal fistula. An expert pathologist testified that the microscopic findings he detected postlaparotomy could only exist if a bowel perforation had been there for a significant period of time before the fistula developed. The patient's experts argued that the injury was not a "free perforation," but had been contained by her body, preventing the spread of the infection.
DEFENDANTS' DEFENSE: The surgeon maintained that the injury did not occur during the hysterectomy but developed in the days just before it was discovered. Over time, a collection of infected fluid at the vaginal cuff eroded into the bowel above it, creating an entryway for stool to pass through. Continuous leakage from the bowel for 17 days (the length of time between development of symptoms and discovery of the bowel injury) would have likely resulted in the patient's death.
VERDICT: A Missouri defense verdict was returned.
Did improper delivery techniques caused brachial plexus injury? $950,000 settlement
In April, a woman began receiving prenatal care for her 7th pregnancy. Her history of maternal obesity and diabetes mellitus, physical examinations, and tests suggested that she was at increased risk for having a macrosomic baby and encountering shoulder dystocia during vaginal delivery.
At 37 weeks' gestation, the mother was admitted to the hospital for induction of labor. Shoulder dystocia was encountered during delivery. At birth, the baby weighed 9 lb 10 oz and her right arm was limp. She was found to have a right brachial plexus injury involving C5‒C8 nerve roots and muscles. Two nerve root avulsions were evident on MRI and visualized by the surgeon during an extensive nerve graft operation. Arm function and range of motion improved after surgery, but the child has not recovered normal use of her arm.
PARENTS' CLAIM: Under the standard of care, the ObGyn was required to obtain informed consent, including a discussion of the risks of vaginal delivery (shoulder dystocia and brachial plexus injury), and the option of cesarean delivery. The patient claimed that the ObGyn neither obtained informed consent nor discussed these risks with her.
The labor and delivery nurse reported that the ObGyn told her, before delivery, that he was expecting a large baby and, perhaps, shoulder dystocia.
The ObGyn deviated from the standard of care by applying more than gentle traction to the fetal head while the shoulder was still impacted. The injury to the baby's right brachial plexus resulted from excessive lateral traction used by the ObGyn. The injury would not have occurred if a cesarean delivery had been performed. The mechanism of maternal forces injuring a brachial plexus nerve has never been visualized by any physician and is an unproven hypothesis.
PHYSICIAN'S DEFENSE: The ObGyn reported using standard maneuvers to deliver the baby. He applied traction on the fetal head 3 times: once after McRoberts maneuver, once after suprapubic pressure, and once after delivery of the posterior arm. He dictated into his notes that "We had to be careful to avoid excessive tractive forces." He claimed that shoulder dystocia is an unpredictable and unpreventable obstetric emergency, and that the injury was caused by the maternal forces of labor.
VERDICT: A $950,000 Virginia settlement was reached.
Wrongful death claim
On March 13, a 76-year-old woman went to her primary care physician's office because of a vaginal discharge. A nurse practitioner (NP) diagnosed a urinary tract infection (UTI) and prescribed cefixime (Suprax). Four days later, the patient began to experience severe diarrhea and blamed the medication. At a follow-up visit on March 20, the NP switched the patient to sulfamethoxazole-trimethoprim (Bactrim).
The following day, the patient was found unresponsive on her bathroom floor and was taken to the ED. It was determined that she had Clostridium difficile colitis (C difficile) and was admitted to the hospital. She developed acute renal failure, metabolic acidosis, hypovolemia, hypotension, and tachycardia. When she went into cardiac arrest, attempts to resuscitate her failed. She died on March 22.
ESTATE'S CLAIM: The estate sued the NP, claiming that the patient's symptoms did not meet the criteria for a UTI. If appropriate tests had been performed, the correct diagnosis would have been made and she could have received potentially life-saving treatment.
DEFENDANTS' DEFENSE: The NP claimed there was no negligence. Her diagnosis and treatment of the patient's condition were appropriate in all respects. The development of C difficile is a risk of any antibiotic.
VERDICT: An Indiana defense verdict was returned.
Nuchal cord: Undisclosed settlement
During delivery, the labor and delivery nurses lost the fetal heart-rate (FHR) monitor tracing, resulting in their being unaware of increasing signs of fetal intolerance to labor. The nurses continued to administer oxytocin to induce labor.
At birth, a nuchal cord was identified. The baby was born without signs of life but was successfully resuscitated by hospital staff.
The baby was found to have sustained severe brain damage as a result of profound fetal hypoxia. The child will require 24-hour nursing and supportive care for as long as she lives.
PARENTS' CLAIM: The nurses and ObGyn breached the standard of care resulting in her child's severe brain damage. The hospital nurses failed to continuously monitor the FHR. Profound brain damage was preventable in this case.
DEFENDANTS' DEFENSE: The nurses continuously monitored by listening to sounds coming out of the bedside monitor even though no taping of FHR was occurring on the central monitors or FHR monitor strip. A nuchal cord is an unforeseeable medical emergency; nothing different could have been done to change the outcome.
VERDICT: An undisclosed Texas settlement was reached.
Surgical needle left near bladder
The patient underwent a hysterectomy on July 9. Because of an injury sustained during the operation, bladder repair surgery was performed on July 19. After that surgery, she reported bleeding and urinary incontinence. Results of a computed tomography (CT) scan showed that the bladder repair was not successful, a vesicovaginal fistula had developed, and a 13-mm C-shaped needle was found near her bladder. A third operation to remove the needle from her abdomen took place on August 16.
PATIENT'S CLAIM: The needle left behind after the second surgery caused a fistula to develop. The patient suffered mental and emotional distress from knowing the needle was in her abdomen. Foreign objects left in a patient during surgery are strong evidence of negligence.
DEFENDANTS' DEFENSE: The primary defense claim was the absence of causation--any negligence did not cause the injury. Defense experts testified that the needle was on top of the bladder and did move anywhere to cause damage. The patient developed a vesicovaginal fistula due to complications from the bladder repair operation and not from the needle. In addition, there was testimony that the third surgery was unnecessary because the needle would eventually flush out of the abdomen without causing damage.
VERDICT: A Michigan defense verdict was returned.
Claims cancer diagnosis was delayed
On October 1, 2008, a woman saw her family physician (FP) for routine care. Blood work results showed an elevated white blood cell (WBC) count. The patient claimed that the FP did not inform her of these test results.
One year later, the patient went to an urgent care facility where blood work was performed; the results showed a high WBC count. After a work-up, the patient was given a presumptive diagnosis of mantel cell lymphoma. By December 9, she had undergone the first round of chemotherapy. Subsequent tests revealed that the presumptive diagnosis was incorrect; she actually had low-grade lymphoproliferative disorder.
In lieu of this new diagnosis, the medical team offered the patient the option of discontinuing chemotherapy. She decided, however, to continue the treatment. Chemotherapy was followed by 2 years of rituximab/hyaluronidase human maintenance therapy.
PATIENT'S CLAIM: The patient presented her case to a medical review board. The course of treatment (chemotherapy plus maintenance therapy) left her with permanent heart damage and an elevated risk of developing secondary cancer.
The patient claimed that none of this would have happened if her FP had informed her of the October 2008 test results and recommended appropriate follow-up studies. The results of those studies would have given her the correct diagnosis and allowed her to receive prompt, proper treatment. The medical review board responded unanimously that the FP's conduct constituted a breach of the standard of care, but concluded that the breach was not a factor in the patient's damages.
The patient filed suit against the FP. An expert in internal medicine commented that, based on the 2008 WBC count, the tests should have been repeated and the patient should have been referred to a hematologist/oncologist. Failure to do so increased the patient's risk of developing cancer in the future.
DEFENDANTS' DEFENSE: The FP denied any breach of standard of care. According to her notes, she had shared test results with the patient on November 26 and recommended following up with repeat blood work. The FP blamed the patient for failing to follow-up as recommended.
VERDICT: An Indiana defense verdict was returned.
These cases were selected by the editors of OBG Management from Medical Malpractice Verdicts, Settlements & Experts, with permission of the editor, Lewis Laska (www.verdictslaska.com). The information available to the editors about the cases presented here is sometimes incomplete. Moreover, the cases may or may not have merit. Nevertheless, these cases represent the types of clinical situations that typically result in litigation and are meant to illustrate nationwide variation in jury verdicts and awards.
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.
Did unsafe oxytocin dose cause uterine rupture? $3.5M settlement
When a mother presented to the hospital in labor, the on-call ObGyn ordered oxytocin with the dosage to be increased by 2 mU/min until she was receiving 30 mU/min or until an adequate contraction pattern was achieved and maintained. Over the next few hours, the labor and delivery nurse increased the dosage of the infusion several times.
As the patient began to push, a trickle of bright red blood was seen coming from her vagina and the baby's heart tones were temporarily lost. When the fetal heart tones were restored, his heart rate was approximately 50 bpm. After vaginal delivery was attempted using vacuum extraction and forceps, an emergency cesarean delivery was performed, leading to the finding that the mother's uterus had ruptured.
The baby suffered a permanent brain injury due to hypoxic-ischemic encephalopathy.
PATIENT'S CLAIM: The mother sued the hospital and on-call ObGyn. She alleged that the health care providers breached the standard of care by negligently increasing and maintaining the oxytocin at unsafe levels, which caused the mother's uterus to be overworked and eventually rupture. The rupture led to the child's hypoxia. An expert ObGyn noted that the patient's contractions were adequate by the time the oxytocin dose reached 14 mU/min, but the dosage continued to be increased.
DEFENDANTS' DEFENSE: The case was settled during the trial.
VERDICT: A $3.5 million Kansas settlement was reached.
When did the bowel injury occur?
One day after undergoing a hysterectomy, a woman went to the emergency department (ED) because she was feeling ill. She received a diagnosis of a pulmonary embolism for which she was given anticoagulant medications. The patient's symptoms persisted. Computed tomography (CT) imaging showed a bowel injury, and, 17 days after the initial surgery, an emergency laparotomy was performed.
PATIENT'S CLAIM: The patient sued the surgeon and the hospital. The hospital settled before the trial and the case continued against the surgeon.
The patient's early symptoms after surgery were evidence of a bowel injury, but imaging was not undertaken for several days. If the imaging had been undertaken earlier, the bowel injury would have been detected before it caused a rectovaginal fistula. An expert pathologist testified that the microscopic findings he detected postlaparotomy could only exist if a bowel perforation had been there for a significant period of time before the fistula developed. The patient's experts argued that the injury was not a "free perforation," but had been contained by her body, preventing the spread of the infection.
DEFENDANTS' DEFENSE: The surgeon maintained that the injury did not occur during the hysterectomy but developed in the days just before it was discovered. Over time, a collection of infected fluid at the vaginal cuff eroded into the bowel above it, creating an entryway for stool to pass through. Continuous leakage from the bowel for 17 days (the length of time between development of symptoms and discovery of the bowel injury) would have likely resulted in the patient's death.
VERDICT: A Missouri defense verdict was returned.
Did improper delivery techniques caused brachial plexus injury? $950,000 settlement
In April, a woman began receiving prenatal care for her 7th pregnancy. Her history of maternal obesity and diabetes mellitus, physical examinations, and tests suggested that she was at increased risk for having a macrosomic baby and encountering shoulder dystocia during vaginal delivery.
At 37 weeks' gestation, the mother was admitted to the hospital for induction of labor. Shoulder dystocia was encountered during delivery. At birth, the baby weighed 9 lb 10 oz and her right arm was limp. She was found to have a right brachial plexus injury involving C5‒C8 nerve roots and muscles. Two nerve root avulsions were evident on MRI and visualized by the surgeon during an extensive nerve graft operation. Arm function and range of motion improved after surgery, but the child has not recovered normal use of her arm.
PARENTS' CLAIM: Under the standard of care, the ObGyn was required to obtain informed consent, including a discussion of the risks of vaginal delivery (shoulder dystocia and brachial plexus injury), and the option of cesarean delivery. The patient claimed that the ObGyn neither obtained informed consent nor discussed these risks with her.
The labor and delivery nurse reported that the ObGyn told her, before delivery, that he was expecting a large baby and, perhaps, shoulder dystocia.
The ObGyn deviated from the standard of care by applying more than gentle traction to the fetal head while the shoulder was still impacted. The injury to the baby's right brachial plexus resulted from excessive lateral traction used by the ObGyn. The injury would not have occurred if a cesarean delivery had been performed. The mechanism of maternal forces injuring a brachial plexus nerve has never been visualized by any physician and is an unproven hypothesis.
PHYSICIAN'S DEFENSE: The ObGyn reported using standard maneuvers to deliver the baby. He applied traction on the fetal head 3 times: once after McRoberts maneuver, once after suprapubic pressure, and once after delivery of the posterior arm. He dictated into his notes that "We had to be careful to avoid excessive tractive forces." He claimed that shoulder dystocia is an unpredictable and unpreventable obstetric emergency, and that the injury was caused by the maternal forces of labor.
VERDICT: A $950,000 Virginia settlement was reached.
Wrongful death claim
On March 13, a 76-year-old woman went to her primary care physician's office because of a vaginal discharge. A nurse practitioner (NP) diagnosed a urinary tract infection (UTI) and prescribed cefixime (Suprax). Four days later, the patient began to experience severe diarrhea and blamed the medication. At a follow-up visit on March 20, the NP switched the patient to sulfamethoxazole-trimethoprim (Bactrim).
The following day, the patient was found unresponsive on her bathroom floor and was taken to the ED. It was determined that she had Clostridium difficile colitis (C difficile) and was admitted to the hospital. She developed acute renal failure, metabolic acidosis, hypovolemia, hypotension, and tachycardia. When she went into cardiac arrest, attempts to resuscitate her failed. She died on March 22.
ESTATE'S CLAIM: The estate sued the NP, claiming that the patient's symptoms did not meet the criteria for a UTI. If appropriate tests had been performed, the correct diagnosis would have been made and she could have received potentially life-saving treatment.
DEFENDANTS' DEFENSE: The NP claimed there was no negligence. Her diagnosis and treatment of the patient's condition were appropriate in all respects. The development of C difficile is a risk of any antibiotic.
VERDICT: An Indiana defense verdict was returned.
Nuchal cord: Undisclosed settlement
During delivery, the labor and delivery nurses lost the fetal heart-rate (FHR) monitor tracing, resulting in their being unaware of increasing signs of fetal intolerance to labor. The nurses continued to administer oxytocin to induce labor.
At birth, a nuchal cord was identified. The baby was born without signs of life but was successfully resuscitated by hospital staff.
The baby was found to have sustained severe brain damage as a result of profound fetal hypoxia. The child will require 24-hour nursing and supportive care for as long as she lives.
PARENTS' CLAIM: The nurses and ObGyn breached the standard of care resulting in her child's severe brain damage. The hospital nurses failed to continuously monitor the FHR. Profound brain damage was preventable in this case.
DEFENDANTS' DEFENSE: The nurses continuously monitored by listening to sounds coming out of the bedside monitor even though no taping of FHR was occurring on the central monitors or FHR monitor strip. A nuchal cord is an unforeseeable medical emergency; nothing different could have been done to change the outcome.
VERDICT: An undisclosed Texas settlement was reached.
Surgical needle left near bladder
The patient underwent a hysterectomy on July 9. Because of an injury sustained during the operation, bladder repair surgery was performed on July 19. After that surgery, she reported bleeding and urinary incontinence. Results of a computed tomography (CT) scan showed that the bladder repair was not successful, a vesicovaginal fistula had developed, and a 13-mm C-shaped needle was found near her bladder. A third operation to remove the needle from her abdomen took place on August 16.
PATIENT'S CLAIM: The needle left behind after the second surgery caused a fistula to develop. The patient suffered mental and emotional distress from knowing the needle was in her abdomen. Foreign objects left in a patient during surgery are strong evidence of negligence.
DEFENDANTS' DEFENSE: The primary defense claim was the absence of causation--any negligence did not cause the injury. Defense experts testified that the needle was on top of the bladder and did move anywhere to cause damage. The patient developed a vesicovaginal fistula due to complications from the bladder repair operation and not from the needle. In addition, there was testimony that the third surgery was unnecessary because the needle would eventually flush out of the abdomen without causing damage.
VERDICT: A Michigan defense verdict was returned.
Claims cancer diagnosis was delayed
On October 1, 2008, a woman saw her family physician (FP) for routine care. Blood work results showed an elevated white blood cell (WBC) count. The patient claimed that the FP did not inform her of these test results.
One year later, the patient went to an urgent care facility where blood work was performed; the results showed a high WBC count. After a work-up, the patient was given a presumptive diagnosis of mantel cell lymphoma. By December 9, she had undergone the first round of chemotherapy. Subsequent tests revealed that the presumptive diagnosis was incorrect; she actually had low-grade lymphoproliferative disorder.
In lieu of this new diagnosis, the medical team offered the patient the option of discontinuing chemotherapy. She decided, however, to continue the treatment. Chemotherapy was followed by 2 years of rituximab/hyaluronidase human maintenance therapy.
PATIENT'S CLAIM: The patient presented her case to a medical review board. The course of treatment (chemotherapy plus maintenance therapy) left her with permanent heart damage and an elevated risk of developing secondary cancer.
The patient claimed that none of this would have happened if her FP had informed her of the October 2008 test results and recommended appropriate follow-up studies. The results of those studies would have given her the correct diagnosis and allowed her to receive prompt, proper treatment. The medical review board responded unanimously that the FP's conduct constituted a breach of the standard of care, but concluded that the breach was not a factor in the patient's damages.
The patient filed suit against the FP. An expert in internal medicine commented that, based on the 2008 WBC count, the tests should have been repeated and the patient should have been referred to a hematologist/oncologist. Failure to do so increased the patient's risk of developing cancer in the future.
DEFENDANTS' DEFENSE: The FP denied any breach of standard of care. According to her notes, she had shared test results with the patient on November 26 and recommended following up with repeat blood work. The FP blamed the patient for failing to follow-up as recommended.
VERDICT: An Indiana defense verdict was returned.
These cases were selected by the editors of OBG Management from Medical Malpractice Verdicts, Settlements & Experts, with permission of the editor, Lewis Laska (www.verdictslaska.com). The information available to the editors about the cases presented here is sometimes incomplete. Moreover, the cases may or may not have merit. Nevertheless, these cases represent the types of clinical situations that typically result in litigation and are meant to illustrate nationwide variation in jury verdicts and awards.
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.
Did unsafe oxytocin dose cause uterine rupture? $3.5M settlement
When a mother presented to the hospital in labor, the on-call ObGyn ordered oxytocin with the dosage to be increased by 2 mU/min until she was receiving 30 mU/min or until an adequate contraction pattern was achieved and maintained. Over the next few hours, the labor and delivery nurse increased the dosage of the infusion several times.
As the patient began to push, a trickle of bright red blood was seen coming from her vagina and the baby's heart tones were temporarily lost. When the fetal heart tones were restored, his heart rate was approximately 50 bpm. After vaginal delivery was attempted using vacuum extraction and forceps, an emergency cesarean delivery was performed, leading to the finding that the mother's uterus had ruptured.
The baby suffered a permanent brain injury due to hypoxic-ischemic encephalopathy.
PATIENT'S CLAIM: The mother sued the hospital and on-call ObGyn. She alleged that the health care providers breached the standard of care by negligently increasing and maintaining the oxytocin at unsafe levels, which caused the mother's uterus to be overworked and eventually rupture. The rupture led to the child's hypoxia. An expert ObGyn noted that the patient's contractions were adequate by the time the oxytocin dose reached 14 mU/min, but the dosage continued to be increased.
DEFENDANTS' DEFENSE: The case was settled during the trial.
VERDICT: A $3.5 million Kansas settlement was reached.
When did the bowel injury occur?
One day after undergoing a hysterectomy, a woman went to the emergency department (ED) because she was feeling ill. She received a diagnosis of a pulmonary embolism for which she was given anticoagulant medications. The patient's symptoms persisted. Computed tomography (CT) imaging showed a bowel injury, and, 17 days after the initial surgery, an emergency laparotomy was performed.
PATIENT'S CLAIM: The patient sued the surgeon and the hospital. The hospital settled before the trial and the case continued against the surgeon.
The patient's early symptoms after surgery were evidence of a bowel injury, but imaging was not undertaken for several days. If the imaging had been undertaken earlier, the bowel injury would have been detected before it caused a rectovaginal fistula. An expert pathologist testified that the microscopic findings he detected postlaparotomy could only exist if a bowel perforation had been there for a significant period of time before the fistula developed. The patient's experts argued that the injury was not a "free perforation," but had been contained by her body, preventing the spread of the infection.
DEFENDANTS' DEFENSE: The surgeon maintained that the injury did not occur during the hysterectomy but developed in the days just before it was discovered. Over time, a collection of infected fluid at the vaginal cuff eroded into the bowel above it, creating an entryway for stool to pass through. Continuous leakage from the bowel for 17 days (the length of time between development of symptoms and discovery of the bowel injury) would have likely resulted in the patient's death.
VERDICT: A Missouri defense verdict was returned.
Did improper delivery techniques caused brachial plexus injury? $950,000 settlement
In April, a woman began receiving prenatal care for her 7th pregnancy. Her history of maternal obesity and diabetes mellitus, physical examinations, and tests suggested that she was at increased risk for having a macrosomic baby and encountering shoulder dystocia during vaginal delivery.
At 37 weeks' gestation, the mother was admitted to the hospital for induction of labor. Shoulder dystocia was encountered during delivery. At birth, the baby weighed 9 lb 10 oz and her right arm was limp. She was found to have a right brachial plexus injury involving C5‒C8 nerve roots and muscles. Two nerve root avulsions were evident on MRI and visualized by the surgeon during an extensive nerve graft operation. Arm function and range of motion improved after surgery, but the child has not recovered normal use of her arm.
PARENTS' CLAIM: Under the standard of care, the ObGyn was required to obtain informed consent, including a discussion of the risks of vaginal delivery (shoulder dystocia and brachial plexus injury), and the option of cesarean delivery. The patient claimed that the ObGyn neither obtained informed consent nor discussed these risks with her.
The labor and delivery nurse reported that the ObGyn told her, before delivery, that he was expecting a large baby and, perhaps, shoulder dystocia.
The ObGyn deviated from the standard of care by applying more than gentle traction to the fetal head while the shoulder was still impacted. The injury to the baby's right brachial plexus resulted from excessive lateral traction used by the ObGyn. The injury would not have occurred if a cesarean delivery had been performed. The mechanism of maternal forces injuring a brachial plexus nerve has never been visualized by any physician and is an unproven hypothesis.
PHYSICIAN'S DEFENSE: The ObGyn reported using standard maneuvers to deliver the baby. He applied traction on the fetal head 3 times: once after McRoberts maneuver, once after suprapubic pressure, and once after delivery of the posterior arm. He dictated into his notes that "We had to be careful to avoid excessive tractive forces." He claimed that shoulder dystocia is an unpredictable and unpreventable obstetric emergency, and that the injury was caused by the maternal forces of labor.
VERDICT: A $950,000 Virginia settlement was reached.
Wrongful death claim
On March 13, a 76-year-old woman went to her primary care physician's office because of a vaginal discharge. A nurse practitioner (NP) diagnosed a urinary tract infection (UTI) and prescribed cefixime (Suprax). Four days later, the patient began to experience severe diarrhea and blamed the medication. At a follow-up visit on March 20, the NP switched the patient to sulfamethoxazole-trimethoprim (Bactrim).
The following day, the patient was found unresponsive on her bathroom floor and was taken to the ED. It was determined that she had Clostridium difficile colitis (C difficile) and was admitted to the hospital. She developed acute renal failure, metabolic acidosis, hypovolemia, hypotension, and tachycardia. When she went into cardiac arrest, attempts to resuscitate her failed. She died on March 22.
ESTATE'S CLAIM: The estate sued the NP, claiming that the patient's symptoms did not meet the criteria for a UTI. If appropriate tests had been performed, the correct diagnosis would have been made and she could have received potentially life-saving treatment.
DEFENDANTS' DEFENSE: The NP claimed there was no negligence. Her diagnosis and treatment of the patient's condition were appropriate in all respects. The development of C difficile is a risk of any antibiotic.
VERDICT: An Indiana defense verdict was returned.
Nuchal cord: Undisclosed settlement
During delivery, the labor and delivery nurses lost the fetal heart-rate (FHR) monitor tracing, resulting in their being unaware of increasing signs of fetal intolerance to labor. The nurses continued to administer oxytocin to induce labor.
At birth, a nuchal cord was identified. The baby was born without signs of life but was successfully resuscitated by hospital staff.
The baby was found to have sustained severe brain damage as a result of profound fetal hypoxia. The child will require 24-hour nursing and supportive care for as long as she lives.
PARENTS' CLAIM: The nurses and ObGyn breached the standard of care resulting in her child's severe brain damage. The hospital nurses failed to continuously monitor the FHR. Profound brain damage was preventable in this case.
DEFENDANTS' DEFENSE: The nurses continuously monitored by listening to sounds coming out of the bedside monitor even though no taping of FHR was occurring on the central monitors or FHR monitor strip. A nuchal cord is an unforeseeable medical emergency; nothing different could have been done to change the outcome.
VERDICT: An undisclosed Texas settlement was reached.
Surgical needle left near bladder
The patient underwent a hysterectomy on July 9. Because of an injury sustained during the operation, bladder repair surgery was performed on July 19. After that surgery, she reported bleeding and urinary incontinence. Results of a computed tomography (CT) scan showed that the bladder repair was not successful, a vesicovaginal fistula had developed, and a 13-mm C-shaped needle was found near her bladder. A third operation to remove the needle from her abdomen took place on August 16.
PATIENT'S CLAIM: The needle left behind after the second surgery caused a fistula to develop. The patient suffered mental and emotional distress from knowing the needle was in her abdomen. Foreign objects left in a patient during surgery are strong evidence of negligence.
DEFENDANTS' DEFENSE: The primary defense claim was the absence of causation--any negligence did not cause the injury. Defense experts testified that the needle was on top of the bladder and did move anywhere to cause damage. The patient developed a vesicovaginal fistula due to complications from the bladder repair operation and not from the needle. In addition, there was testimony that the third surgery was unnecessary because the needle would eventually flush out of the abdomen without causing damage.
VERDICT: A Michigan defense verdict was returned.
Claims cancer diagnosis was delayed
On October 1, 2008, a woman saw her family physician (FP) for routine care. Blood work results showed an elevated white blood cell (WBC) count. The patient claimed that the FP did not inform her of these test results.
One year later, the patient went to an urgent care facility where blood work was performed; the results showed a high WBC count. After a work-up, the patient was given a presumptive diagnosis of mantel cell lymphoma. By December 9, she had undergone the first round of chemotherapy. Subsequent tests revealed that the presumptive diagnosis was incorrect; she actually had low-grade lymphoproliferative disorder.
In lieu of this new diagnosis, the medical team offered the patient the option of discontinuing chemotherapy. She decided, however, to continue the treatment. Chemotherapy was followed by 2 years of rituximab/hyaluronidase human maintenance therapy.
PATIENT'S CLAIM: The patient presented her case to a medical review board. The course of treatment (chemotherapy plus maintenance therapy) left her with permanent heart damage and an elevated risk of developing secondary cancer.
The patient claimed that none of this would have happened if her FP had informed her of the October 2008 test results and recommended appropriate follow-up studies. The results of those studies would have given her the correct diagnosis and allowed her to receive prompt, proper treatment. The medical review board responded unanimously that the FP's conduct constituted a breach of the standard of care, but concluded that the breach was not a factor in the patient's damages.
The patient filed suit against the FP. An expert in internal medicine commented that, based on the 2008 WBC count, the tests should have been repeated and the patient should have been referred to a hematologist/oncologist. Failure to do so increased the patient's risk of developing cancer in the future.
DEFENDANTS' DEFENSE: The FP denied any breach of standard of care. According to her notes, she had shared test results with the patient on November 26 and recommended following up with repeat blood work. The FP blamed the patient for failing to follow-up as recommended.
VERDICT: An Indiana defense verdict was returned.
These cases were selected by the editors of OBG Management from Medical Malpractice Verdicts, Settlements & Experts, with permission of the editor, Lewis Laska (www.verdictslaska.com). The information available to the editors about the cases presented here is sometimes incomplete. Moreover, the cases may or may not have merit. Nevertheless, these cases represent the types of clinical situations that typically result in litigation and are meant to illustrate nationwide variation in jury verdicts and awards.
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.
Drug-coated balloons: The future of hemodialysis access?
CHICAGO – Drug-coated balloons show promise of being a long-sought major advance in the endovascular treatment of stenotic arteriovenous fistulae and grafts for hemodialysis access, Syed M. Hussain, MD, said at a symposium on vascular surgery sponsored by Northwestern University.
Something significantly better than today’s standard treatment options is needed, according to Dr. Hussain. Medicare pays out more than $50 billion annually for the treatment of patients with end-stage renal disease, and a hefty chunk of that money goes for oft-repeated procedures aimed at preserving the patency of the access sites.
“Primary patency rates leave much room for improvement,” observed Dr. Hussain, a vascular surgeon at the Christie Clinic in Champaign, Ill.
Indeed, the 50% primary patency rate at 6 months that was optimistically declared a “reasonable goal” in the 2006 Kidney Disease Outcomes Quality Initiative is actually far-fetched using the conventional tools.
“That 50% patency at 6 months would be a tall order to try to meet. Anybody in this room that does fistulography and angioplasty knows the numbers are actually a lot lower than 50%,” said Dr. Hussain.
Plain old balloon angioplasty, the standard first-line intervention for stenotic hemodialysis access sites, has a 6-month patency rate of about 30%. Bare metal stents push the rate up to about 39%. Covered stent grafts are the most effective of the conventional treatment modalities, with a 6-month patency of 51%-53%; however, they are widely considered too expensive for routine use.
Drug-coated balloons (DCBs) have been available for close to 3 years for treatment of lower extremity peripheral artery disease, where they have achieved considerable success. The Food and Drug Administration has approved three commercially available DCBs for this purpose: Bard’s Lutonix 035 AV, Medtronic’s IN.PACT Admiral, and most recently the Stellarex DCB.
In addition, the Lutonix DCB is approved for treatment of dysfunctional or stenotic arteriovenous (AV) fistulae on the strength of the positive results of the first prospective randomized multicenter trial of a DCB versus balloon angioplasty for AV access stenosis as reported at a conference in Leipzig, Germany, in 2017 and summarized by Dr. Hussain.
The pathophysiology of arterial atherosclerotic stenosis is very different from the stenosis that plagues AV access for dialysis. Arterial atherosclerotic stenosis is due to neointimal hyperplasia caused by inflammation and barotrauma secondary to angioplasty. In contrast, the neointimal hyperplasia in AV access stenosis is due to smooth muscle cell proliferation in response to nonphysiologic blood flow dynamics and shear forces between a high-pressure arterial system and the low-pressure venous system to which it has been connected, with resultant stenosis at the venous outflow anastomosis and often at the cephalic arch, Dr. Hussain explained.
Other contributors to the high rate of early stenosis in AV fistulae and grafts include traumatic balloon dilation, uremia, and repetitive traumatic needle insertion.
The breakthrough for DCBs as a potential game changer in dialysis access stenosis came with the discovery that venous smooth muscle cells are much more sensitive to paclitaxel and other antiproliferative drugs than are arterial smooth muscle cells. All three commercially available DCBs utilize paclitaxel as their active agent.
Multiple small single-center studies involving off-label use of the DCBs for dialysis access stenosis strongly suggested 6-month patency rates were higher than with balloon angioplasty. Then came the core lab-adjudicated Lutonix multicenter trial, in which 285 hemodialysis patients at 23 sites were randomized to the DCB or balloon angioplasty. Participants had to have a target lesion less than 10 cm long and had to undergo successful predilatation with high-pressure balloon angioplasty.
“The key thing to remember when we talk about dialysis grafts or fistulae is that we have to look at patency in periods of months. We can’t look at years because it’s pretty unusual to see a fistula stay open that long. So most of the time we’re trying to achieve extra months on these types of circuits,” noted Dr. Hussain.
That being said, the 8-month target lesion primary patency rate was 61.6% in the Lutonix DCB group, compared with 49.4% for percutaneous angioplasty, a statistically significant and clinically meaningful difference. Moreover, 66 interventions were required to maintain target lesion patency during that time frame in the DCB group, versus 94 in the angioplasty group; that translated to a 30% reduction in repeat interventions.
“This clearly has the potential to save a lot of money for the health care system,” he said.
The two forms of treatment were equally safe.
The expanded indication for the Lutonix DCB that resulted from this large randomized trial has triggered considerable research interest in DCBs for AV access stenosis around the world. Major ongoing randomized trials include the PAVE trial in the United Kingdom, the Spanish FISBOL trial, the APERTO trial in the Netherlands, and an Israeli randomized trial restricted to patients with cephalic arch stenosis.
Dr. Hussain is particularly excited about the ongoing 330-patient, prospective, multicenter, single-blinded clinical trial of the IN.PACT Admiral DCB versus plain balloon angioplasty. The Medtronic DCB employs a higher dosage of paclitaxel: 3.5 mcg/mm2, compared with 2.0 mcg/mm2 for the Lutonix DCB. Also, due to differences in the excipients used in the two DCBs, the paclitaxel from the IN.PACT device stays in the media of blood vessels for up to 180 days, compared with 60 days following drug delivery with the Lutonix balloon. Whether this longer period of close range antiproliferative activity will translate into a higher patency rate remains to be seen.
Dr. Hussain reported having no financial conflicts of interest regarding his presentation.
Costs associated with the management of patients with chronic kidney disease, particularly those with end-stage renal disease requiring hemodialysis, is a huge component of the Medicare budget. The maintenance of functional vascular access in these patients remains an ongoing challenge and reduction of costs related to access failure is critical to the continued funding of the program. Traditional methods of maintaining access patency such as balloon angioplasty and bare metal stents have poor long-term outcomes, and moderate improvement is seen with the use of covered stents.
Dr. Hussain reviews the current status of drug-coated balloons (DCB) in the endovascular treatment of dysfunctional hemodialysis fistulas and grafts. Safety and efficacy data from a prospective randomized multicenter trial comparing the Bard Lutonix DCB and plain old balloon angioplasty demonstrated a significant improvement in primary patency and a 30% reduction in repeat interventions with the DCB. This led to FDA approval for the Lutonix DCB in the treatment of dysfunctional or stenotic arteriovenous fistulas. Encouraged by these results, researchers conducting ongoing international randomized trials are attempting to clarify the potential expanded indications for DCB in access stenosis. Of particular interest is the ongoing 330-patient prospective, multicenter IN-PACT trial comparing Admiral DCB to balloon angioplasty in failing arteriovenous fistulas. Both the Admiral DCB and Lutonix DCB utilize paclitaxel as the antiproliferative agent. Dr. Hussain describes the increased sensitivity of venous smooth muscle cells to paclitaxel and other antiproliferative drugs when compared with arterial smooth muscle cells. This exciting finding may explain the improved outcomes in the treatment of dialysis access lesions where pathology frequently occurs at the venous anastomosis or in the venous conduit.
Although early results with the use of DCBs are promising, ongoing clinical trials and careful analysis of data and cost effectiveness are critical to optimize outcomes in treating dialysis access dysfunction. Dr. Hussain appropriately expresses cautious optimism regarding the future of hemodialysis access with this new tool available to interventionists treating these complex patients.
Larry A. Scher, MD, is a vascular surgeon at Montefiore Einstein Center for Heart and Vascular Care, New York, and an associate medical editor for Vascular Specialist.
Costs associated with the management of patients with chronic kidney disease, particularly those with end-stage renal disease requiring hemodialysis, is a huge component of the Medicare budget. The maintenance of functional vascular access in these patients remains an ongoing challenge and reduction of costs related to access failure is critical to the continued funding of the program. Traditional methods of maintaining access patency such as balloon angioplasty and bare metal stents have poor long-term outcomes, and moderate improvement is seen with the use of covered stents.
Dr. Hussain reviews the current status of drug-coated balloons (DCB) in the endovascular treatment of dysfunctional hemodialysis fistulas and grafts. Safety and efficacy data from a prospective randomized multicenter trial comparing the Bard Lutonix DCB and plain old balloon angioplasty demonstrated a significant improvement in primary patency and a 30% reduction in repeat interventions with the DCB. This led to FDA approval for the Lutonix DCB in the treatment of dysfunctional or stenotic arteriovenous fistulas. Encouraged by these results, researchers conducting ongoing international randomized trials are attempting to clarify the potential expanded indications for DCB in access stenosis. Of particular interest is the ongoing 330-patient prospective, multicenter IN-PACT trial comparing Admiral DCB to balloon angioplasty in failing arteriovenous fistulas. Both the Admiral DCB and Lutonix DCB utilize paclitaxel as the antiproliferative agent. Dr. Hussain describes the increased sensitivity of venous smooth muscle cells to paclitaxel and other antiproliferative drugs when compared with arterial smooth muscle cells. This exciting finding may explain the improved outcomes in the treatment of dialysis access lesions where pathology frequently occurs at the venous anastomosis or in the venous conduit.
Although early results with the use of DCBs are promising, ongoing clinical trials and careful analysis of data and cost effectiveness are critical to optimize outcomes in treating dialysis access dysfunction. Dr. Hussain appropriately expresses cautious optimism regarding the future of hemodialysis access with this new tool available to interventionists treating these complex patients.
Larry A. Scher, MD, is a vascular surgeon at Montefiore Einstein Center for Heart and Vascular Care, New York, and an associate medical editor for Vascular Specialist.
Costs associated with the management of patients with chronic kidney disease, particularly those with end-stage renal disease requiring hemodialysis, is a huge component of the Medicare budget. The maintenance of functional vascular access in these patients remains an ongoing challenge and reduction of costs related to access failure is critical to the continued funding of the program. Traditional methods of maintaining access patency such as balloon angioplasty and bare metal stents have poor long-term outcomes, and moderate improvement is seen with the use of covered stents.
Dr. Hussain reviews the current status of drug-coated balloons (DCB) in the endovascular treatment of dysfunctional hemodialysis fistulas and grafts. Safety and efficacy data from a prospective randomized multicenter trial comparing the Bard Lutonix DCB and plain old balloon angioplasty demonstrated a significant improvement in primary patency and a 30% reduction in repeat interventions with the DCB. This led to FDA approval for the Lutonix DCB in the treatment of dysfunctional or stenotic arteriovenous fistulas. Encouraged by these results, researchers conducting ongoing international randomized trials are attempting to clarify the potential expanded indications for DCB in access stenosis. Of particular interest is the ongoing 330-patient prospective, multicenter IN-PACT trial comparing Admiral DCB to balloon angioplasty in failing arteriovenous fistulas. Both the Admiral DCB and Lutonix DCB utilize paclitaxel as the antiproliferative agent. Dr. Hussain describes the increased sensitivity of venous smooth muscle cells to paclitaxel and other antiproliferative drugs when compared with arterial smooth muscle cells. This exciting finding may explain the improved outcomes in the treatment of dialysis access lesions where pathology frequently occurs at the venous anastomosis or in the venous conduit.
Although early results with the use of DCBs are promising, ongoing clinical trials and careful analysis of data and cost effectiveness are critical to optimize outcomes in treating dialysis access dysfunction. Dr. Hussain appropriately expresses cautious optimism regarding the future of hemodialysis access with this new tool available to interventionists treating these complex patients.
Larry A. Scher, MD, is a vascular surgeon at Montefiore Einstein Center for Heart and Vascular Care, New York, and an associate medical editor for Vascular Specialist.
CHICAGO – Drug-coated balloons show promise of being a long-sought major advance in the endovascular treatment of stenotic arteriovenous fistulae and grafts for hemodialysis access, Syed M. Hussain, MD, said at a symposium on vascular surgery sponsored by Northwestern University.
Something significantly better than today’s standard treatment options is needed, according to Dr. Hussain. Medicare pays out more than $50 billion annually for the treatment of patients with end-stage renal disease, and a hefty chunk of that money goes for oft-repeated procedures aimed at preserving the patency of the access sites.
“Primary patency rates leave much room for improvement,” observed Dr. Hussain, a vascular surgeon at the Christie Clinic in Champaign, Ill.
Indeed, the 50% primary patency rate at 6 months that was optimistically declared a “reasonable goal” in the 2006 Kidney Disease Outcomes Quality Initiative is actually far-fetched using the conventional tools.
“That 50% patency at 6 months would be a tall order to try to meet. Anybody in this room that does fistulography and angioplasty knows the numbers are actually a lot lower than 50%,” said Dr. Hussain.
Plain old balloon angioplasty, the standard first-line intervention for stenotic hemodialysis access sites, has a 6-month patency rate of about 30%. Bare metal stents push the rate up to about 39%. Covered stent grafts are the most effective of the conventional treatment modalities, with a 6-month patency of 51%-53%; however, they are widely considered too expensive for routine use.
Drug-coated balloons (DCBs) have been available for close to 3 years for treatment of lower extremity peripheral artery disease, where they have achieved considerable success. The Food and Drug Administration has approved three commercially available DCBs for this purpose: Bard’s Lutonix 035 AV, Medtronic’s IN.PACT Admiral, and most recently the Stellarex DCB.
In addition, the Lutonix DCB is approved for treatment of dysfunctional or stenotic arteriovenous (AV) fistulae on the strength of the positive results of the first prospective randomized multicenter trial of a DCB versus balloon angioplasty for AV access stenosis as reported at a conference in Leipzig, Germany, in 2017 and summarized by Dr. Hussain.
The pathophysiology of arterial atherosclerotic stenosis is very different from the stenosis that plagues AV access for dialysis. Arterial atherosclerotic stenosis is due to neointimal hyperplasia caused by inflammation and barotrauma secondary to angioplasty. In contrast, the neointimal hyperplasia in AV access stenosis is due to smooth muscle cell proliferation in response to nonphysiologic blood flow dynamics and shear forces between a high-pressure arterial system and the low-pressure venous system to which it has been connected, with resultant stenosis at the venous outflow anastomosis and often at the cephalic arch, Dr. Hussain explained.
Other contributors to the high rate of early stenosis in AV fistulae and grafts include traumatic balloon dilation, uremia, and repetitive traumatic needle insertion.
The breakthrough for DCBs as a potential game changer in dialysis access stenosis came with the discovery that venous smooth muscle cells are much more sensitive to paclitaxel and other antiproliferative drugs than are arterial smooth muscle cells. All three commercially available DCBs utilize paclitaxel as their active agent.
Multiple small single-center studies involving off-label use of the DCBs for dialysis access stenosis strongly suggested 6-month patency rates were higher than with balloon angioplasty. Then came the core lab-adjudicated Lutonix multicenter trial, in which 285 hemodialysis patients at 23 sites were randomized to the DCB or balloon angioplasty. Participants had to have a target lesion less than 10 cm long and had to undergo successful predilatation with high-pressure balloon angioplasty.
“The key thing to remember when we talk about dialysis grafts or fistulae is that we have to look at patency in periods of months. We can’t look at years because it’s pretty unusual to see a fistula stay open that long. So most of the time we’re trying to achieve extra months on these types of circuits,” noted Dr. Hussain.
That being said, the 8-month target lesion primary patency rate was 61.6% in the Lutonix DCB group, compared with 49.4% for percutaneous angioplasty, a statistically significant and clinically meaningful difference. Moreover, 66 interventions were required to maintain target lesion patency during that time frame in the DCB group, versus 94 in the angioplasty group; that translated to a 30% reduction in repeat interventions.
“This clearly has the potential to save a lot of money for the health care system,” he said.
The two forms of treatment were equally safe.
The expanded indication for the Lutonix DCB that resulted from this large randomized trial has triggered considerable research interest in DCBs for AV access stenosis around the world. Major ongoing randomized trials include the PAVE trial in the United Kingdom, the Spanish FISBOL trial, the APERTO trial in the Netherlands, and an Israeli randomized trial restricted to patients with cephalic arch stenosis.
Dr. Hussain is particularly excited about the ongoing 330-patient, prospective, multicenter, single-blinded clinical trial of the IN.PACT Admiral DCB versus plain balloon angioplasty. The Medtronic DCB employs a higher dosage of paclitaxel: 3.5 mcg/mm2, compared with 2.0 mcg/mm2 for the Lutonix DCB. Also, due to differences in the excipients used in the two DCBs, the paclitaxel from the IN.PACT device stays in the media of blood vessels for up to 180 days, compared with 60 days following drug delivery with the Lutonix balloon. Whether this longer period of close range antiproliferative activity will translate into a higher patency rate remains to be seen.
Dr. Hussain reported having no financial conflicts of interest regarding his presentation.
CHICAGO – Drug-coated balloons show promise of being a long-sought major advance in the endovascular treatment of stenotic arteriovenous fistulae and grafts for hemodialysis access, Syed M. Hussain, MD, said at a symposium on vascular surgery sponsored by Northwestern University.
Something significantly better than today’s standard treatment options is needed, according to Dr. Hussain. Medicare pays out more than $50 billion annually for the treatment of patients with end-stage renal disease, and a hefty chunk of that money goes for oft-repeated procedures aimed at preserving the patency of the access sites.
“Primary patency rates leave much room for improvement,” observed Dr. Hussain, a vascular surgeon at the Christie Clinic in Champaign, Ill.
Indeed, the 50% primary patency rate at 6 months that was optimistically declared a “reasonable goal” in the 2006 Kidney Disease Outcomes Quality Initiative is actually far-fetched using the conventional tools.
“That 50% patency at 6 months would be a tall order to try to meet. Anybody in this room that does fistulography and angioplasty knows the numbers are actually a lot lower than 50%,” said Dr. Hussain.
Plain old balloon angioplasty, the standard first-line intervention for stenotic hemodialysis access sites, has a 6-month patency rate of about 30%. Bare metal stents push the rate up to about 39%. Covered stent grafts are the most effective of the conventional treatment modalities, with a 6-month patency of 51%-53%; however, they are widely considered too expensive for routine use.
Drug-coated balloons (DCBs) have been available for close to 3 years for treatment of lower extremity peripheral artery disease, where they have achieved considerable success. The Food and Drug Administration has approved three commercially available DCBs for this purpose: Bard’s Lutonix 035 AV, Medtronic’s IN.PACT Admiral, and most recently the Stellarex DCB.
In addition, the Lutonix DCB is approved for treatment of dysfunctional or stenotic arteriovenous (AV) fistulae on the strength of the positive results of the first prospective randomized multicenter trial of a DCB versus balloon angioplasty for AV access stenosis as reported at a conference in Leipzig, Germany, in 2017 and summarized by Dr. Hussain.
The pathophysiology of arterial atherosclerotic stenosis is very different from the stenosis that plagues AV access for dialysis. Arterial atherosclerotic stenosis is due to neointimal hyperplasia caused by inflammation and barotrauma secondary to angioplasty. In contrast, the neointimal hyperplasia in AV access stenosis is due to smooth muscle cell proliferation in response to nonphysiologic blood flow dynamics and shear forces between a high-pressure arterial system and the low-pressure venous system to which it has been connected, with resultant stenosis at the venous outflow anastomosis and often at the cephalic arch, Dr. Hussain explained.
Other contributors to the high rate of early stenosis in AV fistulae and grafts include traumatic balloon dilation, uremia, and repetitive traumatic needle insertion.
The breakthrough for DCBs as a potential game changer in dialysis access stenosis came with the discovery that venous smooth muscle cells are much more sensitive to paclitaxel and other antiproliferative drugs than are arterial smooth muscle cells. All three commercially available DCBs utilize paclitaxel as their active agent.
Multiple small single-center studies involving off-label use of the DCBs for dialysis access stenosis strongly suggested 6-month patency rates were higher than with balloon angioplasty. Then came the core lab-adjudicated Lutonix multicenter trial, in which 285 hemodialysis patients at 23 sites were randomized to the DCB or balloon angioplasty. Participants had to have a target lesion less than 10 cm long and had to undergo successful predilatation with high-pressure balloon angioplasty.
“The key thing to remember when we talk about dialysis grafts or fistulae is that we have to look at patency in periods of months. We can’t look at years because it’s pretty unusual to see a fistula stay open that long. So most of the time we’re trying to achieve extra months on these types of circuits,” noted Dr. Hussain.
That being said, the 8-month target lesion primary patency rate was 61.6% in the Lutonix DCB group, compared with 49.4% for percutaneous angioplasty, a statistically significant and clinically meaningful difference. Moreover, 66 interventions were required to maintain target lesion patency during that time frame in the DCB group, versus 94 in the angioplasty group; that translated to a 30% reduction in repeat interventions.
“This clearly has the potential to save a lot of money for the health care system,” he said.
The two forms of treatment were equally safe.
The expanded indication for the Lutonix DCB that resulted from this large randomized trial has triggered considerable research interest in DCBs for AV access stenosis around the world. Major ongoing randomized trials include the PAVE trial in the United Kingdom, the Spanish FISBOL trial, the APERTO trial in the Netherlands, and an Israeli randomized trial restricted to patients with cephalic arch stenosis.
Dr. Hussain is particularly excited about the ongoing 330-patient, prospective, multicenter, single-blinded clinical trial of the IN.PACT Admiral DCB versus plain balloon angioplasty. The Medtronic DCB employs a higher dosage of paclitaxel: 3.5 mcg/mm2, compared with 2.0 mcg/mm2 for the Lutonix DCB. Also, due to differences in the excipients used in the two DCBs, the paclitaxel from the IN.PACT device stays in the media of blood vessels for up to 180 days, compared with 60 days following drug delivery with the Lutonix balloon. Whether this longer period of close range antiproliferative activity will translate into a higher patency rate remains to be seen.
Dr. Hussain reported having no financial conflicts of interest regarding his presentation.
EXPERT ANALYSIS FROM THE NORTHWESTERN VASCULAR SYMPOSIUM
NHLBI seeks to accelerate hemostasis/thrombosis research
SAN DIEGO – The National Heart, Lung, and Blood Institute is looking to jump-start research into hemostasis and thrombosis. Donna DiMichele, MD, offered two reasons for the research push.
“The first is to stimulate research in areas that are undersubscribed through investigator-initiated research,” Dr. DiMichele, deputy director of the NHLBI’s Division of Blood Diseases and Resources, said at the biennial summit of the Thrombosis & Hemostasis Societies of North America. “We also do it sometimes to steer research in directions that are not developing organically through investigator-initiated efforts. In hemostasis and thrombosis, 50% of the investigator-led research is basic in nature. Nonetheless, there were several basic research initiatives that NHLBI released in the last few years that stimulated the field in a new direction.”
The centers will be required to look beyond current active science disciplines in this field, to include emerging sciences and technologies not currently being exploited in this research area. The initiative is also intended to cross-train the next generation of physicians/scientists with interdisciplinary skill sets. “The research teams with successful applications are going to begin their work by the summer of 2018, and hopefully we’ll soon gain some new insights into Factor VIII immunogenicity,” Dr. DiMichele said.
One novel scientific area that successful applicants will be able to take advantage of is the Trans-Omics for Precision Medicine Program (TOPMed). Launched in 2014, this program facilitates whole-genome sequencing across cohorts in heart, lung, blood, and sleep science. TOPMed now includes more than 120,000 whole genomes, with more than 5,000 of those in hemophilia.
In basic science, two NHLBI-funded initiatives aim to improve the understanding of thrombosis.
One, Sex Hormone Induced Thromboembolism in Premenopausal Women (R61/R33), is meant to elucidate the mechanisms by which female sex hormones and sex hormone-based therapies can increase the risk of venous and arterial thromboembolism in premenopausal women. The other initiative, Consortium Linking Oncology with Thrombosis (U01), is aimed at encouraging studies in individual cancer types that expand investigation into the intersection between cancer and thrombotic pathways. It also aims to help researchers identify and develop biomarkers of thrombotic risk or cancer progression, and new strategies for preventing or treating the deleterious interplay between cancer, cancer therapy, and hemostasis/thrombosis.
In the translational research arena, the NHLBI released an initiative on Perinatal Stroke (R01) in 2017. It solicits applications that propose basic and/or translational research studies related to the developing neurovascular unit, perinatal injury/repair response, and/or stroke-related etiologies and risk factors. The purpose is to stimulate research that will identify therapeutic targets in perinatal stroke.
Other NHLBI-sponsored efforts include the Trans-Agency Research Consortium for Trauma-Induced Coagulopathy (TACTIC), as well as the Translational Research Centers in Thrombotic and Hemostatic Disorders program, which set out to enhance the translation of basic research discoveries that could lead to improved prevention, diagnosis, and treatment for thrombotic and hemostatic disorders. This program ended but it led to the development of several projects that are moving into the commercialization phase.
Finally, to further stimulate research in FVIII immunogenicity, on May 15-16, 2018, the NHBLI will host a free workshop entitled “Factor VIII Inhibitors: Generating a Blueprint for Future Research.” For information, visit https://factorviiinhibitors.eventbrite.com.
Dr. DiMichele reported having no financial disclosures.
SAN DIEGO – The National Heart, Lung, and Blood Institute is looking to jump-start research into hemostasis and thrombosis. Donna DiMichele, MD, offered two reasons for the research push.
“The first is to stimulate research in areas that are undersubscribed through investigator-initiated research,” Dr. DiMichele, deputy director of the NHLBI’s Division of Blood Diseases and Resources, said at the biennial summit of the Thrombosis & Hemostasis Societies of North America. “We also do it sometimes to steer research in directions that are not developing organically through investigator-initiated efforts. In hemostasis and thrombosis, 50% of the investigator-led research is basic in nature. Nonetheless, there were several basic research initiatives that NHLBI released in the last few years that stimulated the field in a new direction.”
The centers will be required to look beyond current active science disciplines in this field, to include emerging sciences and technologies not currently being exploited in this research area. The initiative is also intended to cross-train the next generation of physicians/scientists with interdisciplinary skill sets. “The research teams with successful applications are going to begin their work by the summer of 2018, and hopefully we’ll soon gain some new insights into Factor VIII immunogenicity,” Dr. DiMichele said.
One novel scientific area that successful applicants will be able to take advantage of is the Trans-Omics for Precision Medicine Program (TOPMed). Launched in 2014, this program facilitates whole-genome sequencing across cohorts in heart, lung, blood, and sleep science. TOPMed now includes more than 120,000 whole genomes, with more than 5,000 of those in hemophilia.
In basic science, two NHLBI-funded initiatives aim to improve the understanding of thrombosis.
One, Sex Hormone Induced Thromboembolism in Premenopausal Women (R61/R33), is meant to elucidate the mechanisms by which female sex hormones and sex hormone-based therapies can increase the risk of venous and arterial thromboembolism in premenopausal women. The other initiative, Consortium Linking Oncology with Thrombosis (U01), is aimed at encouraging studies in individual cancer types that expand investigation into the intersection between cancer and thrombotic pathways. It also aims to help researchers identify and develop biomarkers of thrombotic risk or cancer progression, and new strategies for preventing or treating the deleterious interplay between cancer, cancer therapy, and hemostasis/thrombosis.
In the translational research arena, the NHLBI released an initiative on Perinatal Stroke (R01) in 2017. It solicits applications that propose basic and/or translational research studies related to the developing neurovascular unit, perinatal injury/repair response, and/or stroke-related etiologies and risk factors. The purpose is to stimulate research that will identify therapeutic targets in perinatal stroke.
Other NHLBI-sponsored efforts include the Trans-Agency Research Consortium for Trauma-Induced Coagulopathy (TACTIC), as well as the Translational Research Centers in Thrombotic and Hemostatic Disorders program, which set out to enhance the translation of basic research discoveries that could lead to improved prevention, diagnosis, and treatment for thrombotic and hemostatic disorders. This program ended but it led to the development of several projects that are moving into the commercialization phase.
Finally, to further stimulate research in FVIII immunogenicity, on May 15-16, 2018, the NHBLI will host a free workshop entitled “Factor VIII Inhibitors: Generating a Blueprint for Future Research.” For information, visit https://factorviiinhibitors.eventbrite.com.
Dr. DiMichele reported having no financial disclosures.
SAN DIEGO – The National Heart, Lung, and Blood Institute is looking to jump-start research into hemostasis and thrombosis. Donna DiMichele, MD, offered two reasons for the research push.
“The first is to stimulate research in areas that are undersubscribed through investigator-initiated research,” Dr. DiMichele, deputy director of the NHLBI’s Division of Blood Diseases and Resources, said at the biennial summit of the Thrombosis & Hemostasis Societies of North America. “We also do it sometimes to steer research in directions that are not developing organically through investigator-initiated efforts. In hemostasis and thrombosis, 50% of the investigator-led research is basic in nature. Nonetheless, there were several basic research initiatives that NHLBI released in the last few years that stimulated the field in a new direction.”
The centers will be required to look beyond current active science disciplines in this field, to include emerging sciences and technologies not currently being exploited in this research area. The initiative is also intended to cross-train the next generation of physicians/scientists with interdisciplinary skill sets. “The research teams with successful applications are going to begin their work by the summer of 2018, and hopefully we’ll soon gain some new insights into Factor VIII immunogenicity,” Dr. DiMichele said.
One novel scientific area that successful applicants will be able to take advantage of is the Trans-Omics for Precision Medicine Program (TOPMed). Launched in 2014, this program facilitates whole-genome sequencing across cohorts in heart, lung, blood, and sleep science. TOPMed now includes more than 120,000 whole genomes, with more than 5,000 of those in hemophilia.
In basic science, two NHLBI-funded initiatives aim to improve the understanding of thrombosis.
One, Sex Hormone Induced Thromboembolism in Premenopausal Women (R61/R33), is meant to elucidate the mechanisms by which female sex hormones and sex hormone-based therapies can increase the risk of venous and arterial thromboembolism in premenopausal women. The other initiative, Consortium Linking Oncology with Thrombosis (U01), is aimed at encouraging studies in individual cancer types that expand investigation into the intersection between cancer and thrombotic pathways. It also aims to help researchers identify and develop biomarkers of thrombotic risk or cancer progression, and new strategies for preventing or treating the deleterious interplay between cancer, cancer therapy, and hemostasis/thrombosis.
In the translational research arena, the NHLBI released an initiative on Perinatal Stroke (R01) in 2017. It solicits applications that propose basic and/or translational research studies related to the developing neurovascular unit, perinatal injury/repair response, and/or stroke-related etiologies and risk factors. The purpose is to stimulate research that will identify therapeutic targets in perinatal stroke.
Other NHLBI-sponsored efforts include the Trans-Agency Research Consortium for Trauma-Induced Coagulopathy (TACTIC), as well as the Translational Research Centers in Thrombotic and Hemostatic Disorders program, which set out to enhance the translation of basic research discoveries that could lead to improved prevention, diagnosis, and treatment for thrombotic and hemostatic disorders. This program ended but it led to the development of several projects that are moving into the commercialization phase.
Finally, to further stimulate research in FVIII immunogenicity, on May 15-16, 2018, the NHBLI will host a free workshop entitled “Factor VIII Inhibitors: Generating a Blueprint for Future Research.” For information, visit https://factorviiinhibitors.eventbrite.com.
Dr. DiMichele reported having no financial disclosures.
EXPERT ANALYSIS FROM THSNA 2018
Managing menopausal symptoms in breast cancer survivors
MDedge Daily News: Fewer smokes mean fewer strokes
diagnosing celiac disease? The perils of endoscopic therapy for Barrett’s esophagus. And is your EHR preventing breastfeeding? Are biopsy’s days numbered for
Listen to the MDedge Daily News podcast for all the details on today’s top news.
diagnosing celiac disease? The perils of endoscopic therapy for Barrett’s esophagus. And is your EHR preventing breastfeeding? Are biopsy’s days numbered for
Listen to the MDedge Daily News podcast for all the details on today’s top news.
diagnosing celiac disease? The perils of endoscopic therapy for Barrett’s esophagus. And is your EHR preventing breastfeeding? Are biopsy’s days numbered for
Listen to the MDedge Daily News podcast for all the details on today’s top news.
What Makes Squamous Cell Cancers Different? Genomics May Explain
Squamous cell carcinomas (SCCs) associated with smoking and human papillomavirus (HPV) have distinct genomic signatures, say researchers from a National Institutes of Health-supported study. That is one of the findings that may help distinguish SCCs from other cancers and point the way to new research and treatment.
The researchers used new analytic tools and data from the recently completed PanCancer Atlas to investigate similarities and differences among SCCs in the head and neck, lung, esophagus, cervix, and bladder. The PanCancer Atlas is a detailed analysis from a dataset containing molecular and clinical information on more than 10,000 tumors from 33 forms of cancer.
The researchers combined multiple platforms of genomic data from 1,400 SCC samples into integrated analyses, creating visual clusters of tumors based on genomic characteristics.
Squamous cell carcinomas had genomic features that set them apart from other cancers, the researchers found. The most common were gains or losses of the sections of certain chromosomes, making it likely that those regions harbor genes important to the development of SCCs.
The current study expands on research reported in 2014 and 2015, which compared genomic features of SCCs in head and neck cancer associated with smoking (a risk factor for head and neck cancer [HNC]) and HPV (a risk factor for cervical and some HNCs). Certain features were present in tumors associated with both, whereas others were exclusive to only 1 of the 2. The researchers also found similarities in the genomic characteristics of HNCs with lung cancers, some bladder cancers, and cervical cancer.
Squamous cell carcinomas (SCCs) associated with smoking and human papillomavirus (HPV) have distinct genomic signatures, say researchers from a National Institutes of Health-supported study. That is one of the findings that may help distinguish SCCs from other cancers and point the way to new research and treatment.
The researchers used new analytic tools and data from the recently completed PanCancer Atlas to investigate similarities and differences among SCCs in the head and neck, lung, esophagus, cervix, and bladder. The PanCancer Atlas is a detailed analysis from a dataset containing molecular and clinical information on more than 10,000 tumors from 33 forms of cancer.
The researchers combined multiple platforms of genomic data from 1,400 SCC samples into integrated analyses, creating visual clusters of tumors based on genomic characteristics.
Squamous cell carcinomas had genomic features that set them apart from other cancers, the researchers found. The most common were gains or losses of the sections of certain chromosomes, making it likely that those regions harbor genes important to the development of SCCs.
The current study expands on research reported in 2014 and 2015, which compared genomic features of SCCs in head and neck cancer associated with smoking (a risk factor for head and neck cancer [HNC]) and HPV (a risk factor for cervical and some HNCs). Certain features were present in tumors associated with both, whereas others were exclusive to only 1 of the 2. The researchers also found similarities in the genomic characteristics of HNCs with lung cancers, some bladder cancers, and cervical cancer.
Squamous cell carcinomas (SCCs) associated with smoking and human papillomavirus (HPV) have distinct genomic signatures, say researchers from a National Institutes of Health-supported study. That is one of the findings that may help distinguish SCCs from other cancers and point the way to new research and treatment.
The researchers used new analytic tools and data from the recently completed PanCancer Atlas to investigate similarities and differences among SCCs in the head and neck, lung, esophagus, cervix, and bladder. The PanCancer Atlas is a detailed analysis from a dataset containing molecular and clinical information on more than 10,000 tumors from 33 forms of cancer.
The researchers combined multiple platforms of genomic data from 1,400 SCC samples into integrated analyses, creating visual clusters of tumors based on genomic characteristics.
Squamous cell carcinomas had genomic features that set them apart from other cancers, the researchers found. The most common were gains or losses of the sections of certain chromosomes, making it likely that those regions harbor genes important to the development of SCCs.
The current study expands on research reported in 2014 and 2015, which compared genomic features of SCCs in head and neck cancer associated with smoking (a risk factor for head and neck cancer [HNC]) and HPV (a risk factor for cervical and some HNCs). Certain features were present in tumors associated with both, whereas others were exclusive to only 1 of the 2. The researchers also found similarities in the genomic characteristics of HNCs with lung cancers, some bladder cancers, and cervical cancer.