Device measures drugs’ antithrombotic activity

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Artificial blood vessels

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Credit: Rob Felt

New research suggests a microfluidic device could help physicians choose the appropriate antiplatelet therapy for patients in need of thromboprophylaxis.

Study investigators ran patient blood samples through the microfluidic device to compare the effects of 3 antiplatelet agents—aspirin, eptifibatide, and heparin—on occlusion times and thrombus detachment.

They found that shear rates had a significant impact on treatment effects.

Although aspirin was effective at low shear rates, it proved largely ineffective at high shear rates, even with increasing doses. And the same was true of heparin.

Eptifibatide was affected by shear rates but still lengthened occlusion times and decreased the risk of thrombus detachment. At higher doses, the drug could prevent occlusion regardless of shear rate.

Melissa Li, PhD, of the University of Washington in Seattle, and her colleagues reported these results in PLOS ONE.

“Doctors have many drug options, and it is difficult for them to determine how well each of those options is going to work for a patient,” Dr Li said. “This study is the first time that a prototype benchtop diagnostic device has tried to address this problem using varying shear rates and patient dosing and tried to make it more personalized.”

The researchers used the microfluidic device to measure occlusion times and thrombus detachment for a range of shear rates (500, 1500, 4000, and 10000 s-1) and drug concentrations (0-2.4 μM for eptifibatide, 0-2 mM for aspirin, and 3.5-40 units/L for heparin).

The team took blood samples from healthy patients, added the drugs to the samples, and ran them through the device. The device has 4 channels that mimic the coronary arteries, which allowed the investigators to study clotting under a variety of conditions.

Results showed that eptifibatide lengthened occlusion time, but the time decreased as shear rates increased. Increasing doses of the drug reduced the risk of occlusion, however. At doses greater than 1.2 μM, eptifibatide prevented occlusion at all shear rates.

Aspirin was unable to fully prevent occlusive thrombosis at high shear rates (4000 and 10000 s-1), even at doses of 2 mM, which is 20 times the recommended daily oral dose.

However, the drug did prevent nearly all occlusive thromboses at low shear rates (500 and 1500 s-1), even at the lowest doses tested. The researchers said they observed identical trends in aspirin and heparin.

When they controlled for shear rate, dosage, and inter-subject variability, the investigators found that occlusion rates were significantly different with the 3 therapies.

Compared to samples treated with eptifibatide, those treated with aspirin had a 4-fold greater risk of occlusion, and those treated with heparin had a 9-fold greater risk. An untreated sample had 14 times the risk of occlusion as an eptifibatide-treated sample.

The researchers also assessed the risk of thrombus detachment and found that eptifibatide lowered the risk, while aspirin raised it. Compared to no therapy, the odds ratios were 0.72 for eptifibatide and 4.48 for aspirin.

Dr Li said this evidence suggests that aspirin can prevent thrombosis in some patients but may not be effective in others, particularly those with atherosclerosis. The team’s device could one day help physicians identify which patients can benefit from aspirin and which cannot, although more testing is needed.

“This finding is something that’s been echoed in the literature by physicians who would find that a number of patients who would take aspirin were not receiving any clinical benefit,” Dr Li said. “What we showed is a good explanation for the conditions under which aspirin resistance occurs and one that matches up with what other people have found.”

 

 

On the other hand, as eptifibatide could prevent thrombosis across all shear rates, this research suggests the drug (and other GPIIb/IIIa inhibitors) could be effective for patients whether or not they had atherosclerosis. Dr Li noted that clinical evidence supports this finding.

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Artificial blood vessels

on a microfluidic chip

Credit: Rob Felt

New research suggests a microfluidic device could help physicians choose the appropriate antiplatelet therapy for patients in need of thromboprophylaxis.

Study investigators ran patient blood samples through the microfluidic device to compare the effects of 3 antiplatelet agents—aspirin, eptifibatide, and heparin—on occlusion times and thrombus detachment.

They found that shear rates had a significant impact on treatment effects.

Although aspirin was effective at low shear rates, it proved largely ineffective at high shear rates, even with increasing doses. And the same was true of heparin.

Eptifibatide was affected by shear rates but still lengthened occlusion times and decreased the risk of thrombus detachment. At higher doses, the drug could prevent occlusion regardless of shear rate.

Melissa Li, PhD, of the University of Washington in Seattle, and her colleagues reported these results in PLOS ONE.

“Doctors have many drug options, and it is difficult for them to determine how well each of those options is going to work for a patient,” Dr Li said. “This study is the first time that a prototype benchtop diagnostic device has tried to address this problem using varying shear rates and patient dosing and tried to make it more personalized.”

The researchers used the microfluidic device to measure occlusion times and thrombus detachment for a range of shear rates (500, 1500, 4000, and 10000 s-1) and drug concentrations (0-2.4 μM for eptifibatide, 0-2 mM for aspirin, and 3.5-40 units/L for heparin).

The team took blood samples from healthy patients, added the drugs to the samples, and ran them through the device. The device has 4 channels that mimic the coronary arteries, which allowed the investigators to study clotting under a variety of conditions.

Results showed that eptifibatide lengthened occlusion time, but the time decreased as shear rates increased. Increasing doses of the drug reduced the risk of occlusion, however. At doses greater than 1.2 μM, eptifibatide prevented occlusion at all shear rates.

Aspirin was unable to fully prevent occlusive thrombosis at high shear rates (4000 and 10000 s-1), even at doses of 2 mM, which is 20 times the recommended daily oral dose.

However, the drug did prevent nearly all occlusive thromboses at low shear rates (500 and 1500 s-1), even at the lowest doses tested. The researchers said they observed identical trends in aspirin and heparin.

When they controlled for shear rate, dosage, and inter-subject variability, the investigators found that occlusion rates were significantly different with the 3 therapies.

Compared to samples treated with eptifibatide, those treated with aspirin had a 4-fold greater risk of occlusion, and those treated with heparin had a 9-fold greater risk. An untreated sample had 14 times the risk of occlusion as an eptifibatide-treated sample.

The researchers also assessed the risk of thrombus detachment and found that eptifibatide lowered the risk, while aspirin raised it. Compared to no therapy, the odds ratios were 0.72 for eptifibatide and 4.48 for aspirin.

Dr Li said this evidence suggests that aspirin can prevent thrombosis in some patients but may not be effective in others, particularly those with atherosclerosis. The team’s device could one day help physicians identify which patients can benefit from aspirin and which cannot, although more testing is needed.

“This finding is something that’s been echoed in the literature by physicians who would find that a number of patients who would take aspirin were not receiving any clinical benefit,” Dr Li said. “What we showed is a good explanation for the conditions under which aspirin resistance occurs and one that matches up with what other people have found.”

 

 

On the other hand, as eptifibatide could prevent thrombosis across all shear rates, this research suggests the drug (and other GPIIb/IIIa inhibitors) could be effective for patients whether or not they had atherosclerosis. Dr Li noted that clinical evidence supports this finding.

Artificial blood vessels

on a microfluidic chip

Credit: Rob Felt

New research suggests a microfluidic device could help physicians choose the appropriate antiplatelet therapy for patients in need of thromboprophylaxis.

Study investigators ran patient blood samples through the microfluidic device to compare the effects of 3 antiplatelet agents—aspirin, eptifibatide, and heparin—on occlusion times and thrombus detachment.

They found that shear rates had a significant impact on treatment effects.

Although aspirin was effective at low shear rates, it proved largely ineffective at high shear rates, even with increasing doses. And the same was true of heparin.

Eptifibatide was affected by shear rates but still lengthened occlusion times and decreased the risk of thrombus detachment. At higher doses, the drug could prevent occlusion regardless of shear rate.

Melissa Li, PhD, of the University of Washington in Seattle, and her colleagues reported these results in PLOS ONE.

“Doctors have many drug options, and it is difficult for them to determine how well each of those options is going to work for a patient,” Dr Li said. “This study is the first time that a prototype benchtop diagnostic device has tried to address this problem using varying shear rates and patient dosing and tried to make it more personalized.”

The researchers used the microfluidic device to measure occlusion times and thrombus detachment for a range of shear rates (500, 1500, 4000, and 10000 s-1) and drug concentrations (0-2.4 μM for eptifibatide, 0-2 mM for aspirin, and 3.5-40 units/L for heparin).

The team took blood samples from healthy patients, added the drugs to the samples, and ran them through the device. The device has 4 channels that mimic the coronary arteries, which allowed the investigators to study clotting under a variety of conditions.

Results showed that eptifibatide lengthened occlusion time, but the time decreased as shear rates increased. Increasing doses of the drug reduced the risk of occlusion, however. At doses greater than 1.2 μM, eptifibatide prevented occlusion at all shear rates.

Aspirin was unable to fully prevent occlusive thrombosis at high shear rates (4000 and 10000 s-1), even at doses of 2 mM, which is 20 times the recommended daily oral dose.

However, the drug did prevent nearly all occlusive thromboses at low shear rates (500 and 1500 s-1), even at the lowest doses tested. The researchers said they observed identical trends in aspirin and heparin.

When they controlled for shear rate, dosage, and inter-subject variability, the investigators found that occlusion rates were significantly different with the 3 therapies.

Compared to samples treated with eptifibatide, those treated with aspirin had a 4-fold greater risk of occlusion, and those treated with heparin had a 9-fold greater risk. An untreated sample had 14 times the risk of occlusion as an eptifibatide-treated sample.

The researchers also assessed the risk of thrombus detachment and found that eptifibatide lowered the risk, while aspirin raised it. Compared to no therapy, the odds ratios were 0.72 for eptifibatide and 4.48 for aspirin.

Dr Li said this evidence suggests that aspirin can prevent thrombosis in some patients but may not be effective in others, particularly those with atherosclerosis. The team’s device could one day help physicians identify which patients can benefit from aspirin and which cannot, although more testing is needed.

“This finding is something that’s been echoed in the literature by physicians who would find that a number of patients who would take aspirin were not receiving any clinical benefit,” Dr Li said. “What we showed is a good explanation for the conditions under which aspirin resistance occurs and one that matches up with what other people have found.”

 

 

On the other hand, as eptifibatide could prevent thrombosis across all shear rates, this research suggests the drug (and other GPIIb/IIIa inhibitors) could be effective for patients whether or not they had atherosclerosis. Dr Li noted that clinical evidence supports this finding.

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HM14 Special Report: Disaster Preparedness

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HM14 Special Report: Disaster Preparedness

Presenters: Dahlia Rizk, Alfred Burger, Reza Samad, Beth Israel Medical Center, New York City

Summary: Disasters can happen anywhere. The team at Beth Israel Medical Center shared their experience with disaster pre-planning and also with severe storm effects of Hurricane Sandy in lower Manhattan in New York City in 2012.

Disaster pre-planning is a very helpful tool. Beth Israel Medical Center (BIMC) had regular leadership planning meetings and mock disaster situations in advance of Hurricane Sandy. Their overall disaster plan included triage of existing patients to a lower acuity setting or discharge. Planning for staff needs, including places to stay if they cannot safely travel home, is part of the disaster plan.

Hurricane Sandy was a disaster in multiple areas including power loss, closure of other healthcare facilities, trauma, infrastructure impairment, and flooding. Some patients were trapped at home. Many ambulatory centers were closed including dialysis units. Hospitals only had partial power because they were working on emergency generators. Infrastructure was not functioning properly. Cell towers and paging system were not functioning.

BIMC received a surge of patients after the storm because of decreased access to medical care in the storm area. One way they dealt with the surge was opening new patient units on two revamped substance abuse units.

There were many lessons learned. A command center for internal communication is required. Communication with outside entities is also important.

Surge planning is also a key consideration. Making bed space, alternative use of staff, patient supplies, staff supplies, staff quarters are all aspects of planning. Disposition enhancement is important for patient care. Social workers and nursing home collaboration are needed. Human resources is needed for short and long term surge staffing. Relationships with other institutions and staffing companies can assist with staffing needs.

Key Takeaways:

  • Disasters happen and are often unpredictable.
  • Preparation is essential.
  • Leadership among staff is crucial.
  • Teamwork is a must and will get the organization through a disaster.

Dr. Hale is a pediatric hospitalist at the Floating Hospital for Children at Tufts Medical Center in Boston, and a member of Team Hospitalist.

 

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Presenters: Dahlia Rizk, Alfred Burger, Reza Samad, Beth Israel Medical Center, New York City

Summary: Disasters can happen anywhere. The team at Beth Israel Medical Center shared their experience with disaster pre-planning and also with severe storm effects of Hurricane Sandy in lower Manhattan in New York City in 2012.

Disaster pre-planning is a very helpful tool. Beth Israel Medical Center (BIMC) had regular leadership planning meetings and mock disaster situations in advance of Hurricane Sandy. Their overall disaster plan included triage of existing patients to a lower acuity setting or discharge. Planning for staff needs, including places to stay if they cannot safely travel home, is part of the disaster plan.

Hurricane Sandy was a disaster in multiple areas including power loss, closure of other healthcare facilities, trauma, infrastructure impairment, and flooding. Some patients were trapped at home. Many ambulatory centers were closed including dialysis units. Hospitals only had partial power because they were working on emergency generators. Infrastructure was not functioning properly. Cell towers and paging system were not functioning.

BIMC received a surge of patients after the storm because of decreased access to medical care in the storm area. One way they dealt with the surge was opening new patient units on two revamped substance abuse units.

There were many lessons learned. A command center for internal communication is required. Communication with outside entities is also important.

Surge planning is also a key consideration. Making bed space, alternative use of staff, patient supplies, staff supplies, staff quarters are all aspects of planning. Disposition enhancement is important for patient care. Social workers and nursing home collaboration are needed. Human resources is needed for short and long term surge staffing. Relationships with other institutions and staffing companies can assist with staffing needs.

Key Takeaways:

  • Disasters happen and are often unpredictable.
  • Preparation is essential.
  • Leadership among staff is crucial.
  • Teamwork is a must and will get the organization through a disaster.

Dr. Hale is a pediatric hospitalist at the Floating Hospital for Children at Tufts Medical Center in Boston, and a member of Team Hospitalist.

 

Presenters: Dahlia Rizk, Alfred Burger, Reza Samad, Beth Israel Medical Center, New York City

Summary: Disasters can happen anywhere. The team at Beth Israel Medical Center shared their experience with disaster pre-planning and also with severe storm effects of Hurricane Sandy in lower Manhattan in New York City in 2012.

Disaster pre-planning is a very helpful tool. Beth Israel Medical Center (BIMC) had regular leadership planning meetings and mock disaster situations in advance of Hurricane Sandy. Their overall disaster plan included triage of existing patients to a lower acuity setting or discharge. Planning for staff needs, including places to stay if they cannot safely travel home, is part of the disaster plan.

Hurricane Sandy was a disaster in multiple areas including power loss, closure of other healthcare facilities, trauma, infrastructure impairment, and flooding. Some patients were trapped at home. Many ambulatory centers were closed including dialysis units. Hospitals only had partial power because they were working on emergency generators. Infrastructure was not functioning properly. Cell towers and paging system were not functioning.

BIMC received a surge of patients after the storm because of decreased access to medical care in the storm area. One way they dealt with the surge was opening new patient units on two revamped substance abuse units.

There were many lessons learned. A command center for internal communication is required. Communication with outside entities is also important.

Surge planning is also a key consideration. Making bed space, alternative use of staff, patient supplies, staff supplies, staff quarters are all aspects of planning. Disposition enhancement is important for patient care. Social workers and nursing home collaboration are needed. Human resources is needed for short and long term surge staffing. Relationships with other institutions and staffing companies can assist with staffing needs.

Key Takeaways:

  • Disasters happen and are often unpredictable.
  • Preparation is essential.
  • Leadership among staff is crucial.
  • Teamwork is a must and will get the organization through a disaster.

Dr. Hale is a pediatric hospitalist at the Floating Hospital for Children at Tufts Medical Center in Boston, and a member of Team Hospitalist.

 

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HM14 Special Report: HFNC in Bronchiolitis: Best Thing Since Sliced Bread?

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HM14 Special Report: HFNC in Bronchiolitis: Best Thing Since Sliced Bread?

Presenter: Shawn Ralston, MD, Children’s Hospital at Dartmouth and Giesel School of Medicine, Hanover, NH

As the evidence comes in, the use of HFNC in patients with bronchiolitis is likely to be an innovation in pediatric hospital medicine,” said Dr. Ralston, with a potentially large impact on the healthcare of hospitalized children in the U.S.

Key Takeaways

Dr. Ralson provided a succinct overview of the literature surrounding the use of HFNC in patients with bronchiolitis:

  • Over the past 10 years, the incidence rates of bronchiolitis hospitalizations have declined in all age groups, but during the same time period in-hospital use of mechanical ventilation, and therefore hospital charges per case, have increased.
  • Surprisingly, the definition of high-flow nasal cannula (HFNC) is not uniform among institutions. Most would agree that it is a heated circuit of humidified oxygen at flow rates that exceed a patient’s respiratory demand.
  • The goal of the nasal cannula in HFNC is to occupy at least 50% of the nares. If correctly sized, this will provide end-expiratory pressures that reduce the subjective work of breathing in infants.
  • Can we predict the non-responders to HFNC? Failure to decrease respiratory rate (RR) at onset of therapy was associated with intubation, or failure of successful use of HFNC.
  • One needs to be aware of potential biases when evaluating the literature on the use of HFNC in bronchiolitis. Seasonal disease variation, secular trends in ICU and/or ED training, and QI culture in hospital such as guidelines and protocols may all potentially impact study results.

James O’Callaghan is a Clinical Assistant Professor of Pediatrics at the University of Washington and a member of Team Hospitalist.

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Presenter: Shawn Ralston, MD, Children’s Hospital at Dartmouth and Giesel School of Medicine, Hanover, NH

As the evidence comes in, the use of HFNC in patients with bronchiolitis is likely to be an innovation in pediatric hospital medicine,” said Dr. Ralston, with a potentially large impact on the healthcare of hospitalized children in the U.S.

Key Takeaways

Dr. Ralson provided a succinct overview of the literature surrounding the use of HFNC in patients with bronchiolitis:

  • Over the past 10 years, the incidence rates of bronchiolitis hospitalizations have declined in all age groups, but during the same time period in-hospital use of mechanical ventilation, and therefore hospital charges per case, have increased.
  • Surprisingly, the definition of high-flow nasal cannula (HFNC) is not uniform among institutions. Most would agree that it is a heated circuit of humidified oxygen at flow rates that exceed a patient’s respiratory demand.
  • The goal of the nasal cannula in HFNC is to occupy at least 50% of the nares. If correctly sized, this will provide end-expiratory pressures that reduce the subjective work of breathing in infants.
  • Can we predict the non-responders to HFNC? Failure to decrease respiratory rate (RR) at onset of therapy was associated with intubation, or failure of successful use of HFNC.
  • One needs to be aware of potential biases when evaluating the literature on the use of HFNC in bronchiolitis. Seasonal disease variation, secular trends in ICU and/or ED training, and QI culture in hospital such as guidelines and protocols may all potentially impact study results.

James O’Callaghan is a Clinical Assistant Professor of Pediatrics at the University of Washington and a member of Team Hospitalist.

Presenter: Shawn Ralston, MD, Children’s Hospital at Dartmouth and Giesel School of Medicine, Hanover, NH

As the evidence comes in, the use of HFNC in patients with bronchiolitis is likely to be an innovation in pediatric hospital medicine,” said Dr. Ralston, with a potentially large impact on the healthcare of hospitalized children in the U.S.

Key Takeaways

Dr. Ralson provided a succinct overview of the literature surrounding the use of HFNC in patients with bronchiolitis:

  • Over the past 10 years, the incidence rates of bronchiolitis hospitalizations have declined in all age groups, but during the same time period in-hospital use of mechanical ventilation, and therefore hospital charges per case, have increased.
  • Surprisingly, the definition of high-flow nasal cannula (HFNC) is not uniform among institutions. Most would agree that it is a heated circuit of humidified oxygen at flow rates that exceed a patient’s respiratory demand.
  • The goal of the nasal cannula in HFNC is to occupy at least 50% of the nares. If correctly sized, this will provide end-expiratory pressures that reduce the subjective work of breathing in infants.
  • Can we predict the non-responders to HFNC? Failure to decrease respiratory rate (RR) at onset of therapy was associated with intubation, or failure of successful use of HFNC.
  • One needs to be aware of potential biases when evaluating the literature on the use of HFNC in bronchiolitis. Seasonal disease variation, secular trends in ICU and/or ED training, and QI culture in hospital such as guidelines and protocols may all potentially impact study results.

James O’Callaghan is a Clinical Assistant Professor of Pediatrics at the University of Washington and a member of Team Hospitalist.

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Hospitalists Focus on Matters of the Heart

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LAS VEGAS—Hospitalist Michael Hoftiezer, MD, has been to pre-courses at annual meetings before HM14, but yesterday’s lineup offered a new option: “Cardiology: What Hospitalists Need to Know as Front-Line Providers.”

The eight-hour seminar was one of three new pre-courses at SHM’s annual meeting, along with “Efficient High-Value Evidence-Based Medicine for the Practicing Hospitalist” and “NP/PA Playbook for Hospital Medicine.” The offerings drew hundreds of hospitalists to the unofficial first day of HM14 at Mandalay Bay Resort and Casino.

“It’s nice to have an extra day of learning,” says Dr. Hoftiezer, who practices at Holy Family Memorial Medical Center in Manitowoc, Wis. And “it’s concentrated on one subject. It’s a good overview of a single subject, rather than bouncing around different things.” Course director Matthews Chacko, MD, of Johns Hopkins Hospital in Baltimore, says the time is right for hospitalists to devote a full-day pre-course focused on cardiology. “Cardiovascular disease is the most common reason we die,” he says.

“It’s something hospital-based practitioners see often. Providing a comprehensive but yet simplified overview of the way to manage some of these diseases with talks given by some of the leading experts in the field seemed very appropriate for this meeting.”

The course covered such topics as arrhythmia, heart failure, peripheral artery disease, and unstable myocardial infarction. Dr. Hoftiezer says he gleaned tips he can take back to his hospital—including the mechanisms of atrial fibrillation and when to measure rhythm versus rate—and that’s what made the pre-course valuable.

“The more relevant, the better,” he adds. “My favorite lectures are the ones that change something I do.”

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LAS VEGAS—Hospitalist Michael Hoftiezer, MD, has been to pre-courses at annual meetings before HM14, but yesterday’s lineup offered a new option: “Cardiology: What Hospitalists Need to Know as Front-Line Providers.”

The eight-hour seminar was one of three new pre-courses at SHM’s annual meeting, along with “Efficient High-Value Evidence-Based Medicine for the Practicing Hospitalist” and “NP/PA Playbook for Hospital Medicine.” The offerings drew hundreds of hospitalists to the unofficial first day of HM14 at Mandalay Bay Resort and Casino.

“It’s nice to have an extra day of learning,” says Dr. Hoftiezer, who practices at Holy Family Memorial Medical Center in Manitowoc, Wis. And “it’s concentrated on one subject. It’s a good overview of a single subject, rather than bouncing around different things.” Course director Matthews Chacko, MD, of Johns Hopkins Hospital in Baltimore, says the time is right for hospitalists to devote a full-day pre-course focused on cardiology. “Cardiovascular disease is the most common reason we die,” he says.

“It’s something hospital-based practitioners see often. Providing a comprehensive but yet simplified overview of the way to manage some of these diseases with talks given by some of the leading experts in the field seemed very appropriate for this meeting.”

The course covered such topics as arrhythmia, heart failure, peripheral artery disease, and unstable myocardial infarction. Dr. Hoftiezer says he gleaned tips he can take back to his hospital—including the mechanisms of atrial fibrillation and when to measure rhythm versus rate—and that’s what made the pre-course valuable.

“The more relevant, the better,” he adds. “My favorite lectures are the ones that change something I do.”

LAS VEGAS—Hospitalist Michael Hoftiezer, MD, has been to pre-courses at annual meetings before HM14, but yesterday’s lineup offered a new option: “Cardiology: What Hospitalists Need to Know as Front-Line Providers.”

The eight-hour seminar was one of three new pre-courses at SHM’s annual meeting, along with “Efficient High-Value Evidence-Based Medicine for the Practicing Hospitalist” and “NP/PA Playbook for Hospital Medicine.” The offerings drew hundreds of hospitalists to the unofficial first day of HM14 at Mandalay Bay Resort and Casino.

“It’s nice to have an extra day of learning,” says Dr. Hoftiezer, who practices at Holy Family Memorial Medical Center in Manitowoc, Wis. And “it’s concentrated on one subject. It’s a good overview of a single subject, rather than bouncing around different things.” Course director Matthews Chacko, MD, of Johns Hopkins Hospital in Baltimore, says the time is right for hospitalists to devote a full-day pre-course focused on cardiology. “Cardiovascular disease is the most common reason we die,” he says.

“It’s something hospital-based practitioners see often. Providing a comprehensive but yet simplified overview of the way to manage some of these diseases with talks given by some of the leading experts in the field seemed very appropriate for this meeting.”

The course covered such topics as arrhythmia, heart failure, peripheral artery disease, and unstable myocardial infarction. Dr. Hoftiezer says he gleaned tips he can take back to his hospital—including the mechanisms of atrial fibrillation and when to measure rhythm versus rate—and that’s what made the pre-course valuable.

“The more relevant, the better,” he adds. “My favorite lectures are the ones that change something I do.”

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Relevance Fuels HM14 Schedule Decisions

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LAS VEGAS—For the next two and a half days at the Mandalay Bay Resort and Casino, some 3,000 hospitalists attending SHM’s annual meeting will have 10 learning tracks and 115 educational sessions to choose from. Which raises a good question: How does a hospitalist make the difficult choice between two sessions of interest that are scheduled at the same time?

“What’s guiding me is: What’s more relevant to what I’m doing?” says hospitalist and first-time attendee Uzoeshi Anukam, MD, of Methodist Mansfield Medical Center in Texas. “What’s more relevant to my patient care? I see a lot of chest pain, so I’m going to jump on chest pain [sessions]. It’s relevant for me.”

The smorgasbord of educational tracks, rapid-fire sessions, and small-group workshops is a recipe for conflict, though. Multiple sessions could offer similar relevance.

“It’s pick your poison, sort of,” says Curt Lawrence, MD, a hospitalist who does locums tenens work in Miami. “To me, most of the topics are pretty interesting and informative. It’s a good problem to have, wanting to go to multiple things.”

Dr. Lawrence says SHM’s online repository of presentations, podcasts, and on-demand videos helps to fill the gaps when he misses a session. And Dr. Anukam says the HM14 At Hand application for smartphones and tablets assists in winnowing down choices and setting goals for which sessions to attend.

“Objectives put things in perspective and guide what things to go to,” Dr. Lawrence says. “My goal is to get as much as information as you can. As a hospitalist, it’s go-go-go-go. I want to spend this time to just stop and get information.”

 

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LAS VEGAS—For the next two and a half days at the Mandalay Bay Resort and Casino, some 3,000 hospitalists attending SHM’s annual meeting will have 10 learning tracks and 115 educational sessions to choose from. Which raises a good question: How does a hospitalist make the difficult choice between two sessions of interest that are scheduled at the same time?

“What’s guiding me is: What’s more relevant to what I’m doing?” says hospitalist and first-time attendee Uzoeshi Anukam, MD, of Methodist Mansfield Medical Center in Texas. “What’s more relevant to my patient care? I see a lot of chest pain, so I’m going to jump on chest pain [sessions]. It’s relevant for me.”

The smorgasbord of educational tracks, rapid-fire sessions, and small-group workshops is a recipe for conflict, though. Multiple sessions could offer similar relevance.

“It’s pick your poison, sort of,” says Curt Lawrence, MD, a hospitalist who does locums tenens work in Miami. “To me, most of the topics are pretty interesting and informative. It’s a good problem to have, wanting to go to multiple things.”

Dr. Lawrence says SHM’s online repository of presentations, podcasts, and on-demand videos helps to fill the gaps when he misses a session. And Dr. Anukam says the HM14 At Hand application for smartphones and tablets assists in winnowing down choices and setting goals for which sessions to attend.

“Objectives put things in perspective and guide what things to go to,” Dr. Lawrence says. “My goal is to get as much as information as you can. As a hospitalist, it’s go-go-go-go. I want to spend this time to just stop and get information.”

 

LAS VEGAS—For the next two and a half days at the Mandalay Bay Resort and Casino, some 3,000 hospitalists attending SHM’s annual meeting will have 10 learning tracks and 115 educational sessions to choose from. Which raises a good question: How does a hospitalist make the difficult choice between two sessions of interest that are scheduled at the same time?

“What’s guiding me is: What’s more relevant to what I’m doing?” says hospitalist and first-time attendee Uzoeshi Anukam, MD, of Methodist Mansfield Medical Center in Texas. “What’s more relevant to my patient care? I see a lot of chest pain, so I’m going to jump on chest pain [sessions]. It’s relevant for me.”

The smorgasbord of educational tracks, rapid-fire sessions, and small-group workshops is a recipe for conflict, though. Multiple sessions could offer similar relevance.

“It’s pick your poison, sort of,” says Curt Lawrence, MD, a hospitalist who does locums tenens work in Miami. “To me, most of the topics are pretty interesting and informative. It’s a good problem to have, wanting to go to multiple things.”

Dr. Lawrence says SHM’s online repository of presentations, podcasts, and on-demand videos helps to fill the gaps when he misses a session. And Dr. Anukam says the HM14 At Hand application for smartphones and tablets assists in winnowing down choices and setting goals for which sessions to attend.

“Objectives put things in perspective and guide what things to go to,” Dr. Lawrence says. “My goal is to get as much as information as you can. As a hospitalist, it’s go-go-go-go. I want to spend this time to just stop and get information.”

 

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HM14 Special Report: Research in Medical Education

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“Stare at who you want to become,” Scott Wright, MD, at Johns Hopkins Bayview Medical Center told hospitalists at SHM’s annual meeting HM14. Look to others who have found success in researching medical education and “learn to steal without apology,” he added. Build upon the work of these mentors and then be sure to give them credit when due. To quote famed painter Pablo Picasso, Dr. Wright said, “Good artists copy, great artists steal.”

Key Takeaways

  • Perform a self-assessment. Many of us start our careers with low competency in research skills. It is important to begin with an accurate self-assessment to find areas of weakness and then work with a research mentor to focus improvement on those areas;
  • Expand your potential area of research. Medical education has traditionally been concerned with the education and training of residents, but it can also apply to younger clinical faculty and their acquisition of knowledge through continuing medical education;
  • Understand how quality will be assessed. Learn how reviewers for journals judge quality and try to increase the quality of the study during the design stage, not the write-up stage; and
  • Research new things to determine whether they can work, rather than big, already-implemented things to determine if they did work.

Dr. O’Callaghan is a Clinical Assistant Professor of Pediatrics at the University of Washington and a member of Team Hospitalist.

 

 

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“Stare at who you want to become,” Scott Wright, MD, at Johns Hopkins Bayview Medical Center told hospitalists at SHM’s annual meeting HM14. Look to others who have found success in researching medical education and “learn to steal without apology,” he added. Build upon the work of these mentors and then be sure to give them credit when due. To quote famed painter Pablo Picasso, Dr. Wright said, “Good artists copy, great artists steal.”

Key Takeaways

  • Perform a self-assessment. Many of us start our careers with low competency in research skills. It is important to begin with an accurate self-assessment to find areas of weakness and then work with a research mentor to focus improvement on those areas;
  • Expand your potential area of research. Medical education has traditionally been concerned with the education and training of residents, but it can also apply to younger clinical faculty and their acquisition of knowledge through continuing medical education;
  • Understand how quality will be assessed. Learn how reviewers for journals judge quality and try to increase the quality of the study during the design stage, not the write-up stage; and
  • Research new things to determine whether they can work, rather than big, already-implemented things to determine if they did work.

Dr. O’Callaghan is a Clinical Assistant Professor of Pediatrics at the University of Washington and a member of Team Hospitalist.

 

 

“Stare at who you want to become,” Scott Wright, MD, at Johns Hopkins Bayview Medical Center told hospitalists at SHM’s annual meeting HM14. Look to others who have found success in researching medical education and “learn to steal without apology,” he added. Build upon the work of these mentors and then be sure to give them credit when due. To quote famed painter Pablo Picasso, Dr. Wright said, “Good artists copy, great artists steal.”

Key Takeaways

  • Perform a self-assessment. Many of us start our careers with low competency in research skills. It is important to begin with an accurate self-assessment to find areas of weakness and then work with a research mentor to focus improvement on those areas;
  • Expand your potential area of research. Medical education has traditionally been concerned with the education and training of residents, but it can also apply to younger clinical faculty and their acquisition of knowledge through continuing medical education;
  • Understand how quality will be assessed. Learn how reviewers for journals judge quality and try to increase the quality of the study during the design stage, not the write-up stage; and
  • Research new things to determine whether they can work, rather than big, already-implemented things to determine if they did work.

Dr. O’Callaghan is a Clinical Assistant Professor of Pediatrics at the University of Washington and a member of Team Hospitalist.

 

 

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VIDEO: Battlefield lessons improve treatment of traumatic scars

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DENVER – Military dermatologists have played an active role in helping wounded warriors with their scars, and those physicians’ practices, including the use of ablative fractional resurfacing, are now entering the civilian world to treat injuries from fire, car crashes, or blasts.

Earlier this year, a group of dermatologists published a consensus report to highlight best practices for laser treatment of traumatic scars. The groups, which included several military dermatologists, concluded that "laser treatment, particularly ablative fractional resurfacing, deserves a prominent role in future scar treatment paradigms, with the possible inclusion of early intervention for contracture avoidance and assistance with wound healing."

In a video interview at the American Academy of Dermatology’s annual meeting, Lt. Col. Chad M. Hivnor, USAF, MC, FS, USA, a staff dermatologist for the San Antonio (Tex.) Military Health System, discussed the use of lasers in treating traumatic scars, talked about the psychology of scars, and shared a few of his own practice pearls.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

[email protected]

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DENVER – Military dermatologists have played an active role in helping wounded warriors with their scars, and those physicians’ practices, including the use of ablative fractional resurfacing, are now entering the civilian world to treat injuries from fire, car crashes, or blasts.

Earlier this year, a group of dermatologists published a consensus report to highlight best practices for laser treatment of traumatic scars. The groups, which included several military dermatologists, concluded that "laser treatment, particularly ablative fractional resurfacing, deserves a prominent role in future scar treatment paradigms, with the possible inclusion of early intervention for contracture avoidance and assistance with wound healing."

In a video interview at the American Academy of Dermatology’s annual meeting, Lt. Col. Chad M. Hivnor, USAF, MC, FS, USA, a staff dermatologist for the San Antonio (Tex.) Military Health System, discussed the use of lasers in treating traumatic scars, talked about the psychology of scars, and shared a few of his own practice pearls.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

[email protected]

On Twitter @naseemmiller

DENVER – Military dermatologists have played an active role in helping wounded warriors with their scars, and those physicians’ practices, including the use of ablative fractional resurfacing, are now entering the civilian world to treat injuries from fire, car crashes, or blasts.

Earlier this year, a group of dermatologists published a consensus report to highlight best practices for laser treatment of traumatic scars. The groups, which included several military dermatologists, concluded that "laser treatment, particularly ablative fractional resurfacing, deserves a prominent role in future scar treatment paradigms, with the possible inclusion of early intervention for contracture avoidance and assistance with wound healing."

In a video interview at the American Academy of Dermatology’s annual meeting, Lt. Col. Chad M. Hivnor, USAF, MC, FS, USA, a staff dermatologist for the San Antonio (Tex.) Military Health System, discussed the use of lasers in treating traumatic scars, talked about the psychology of scars, and shared a few of his own practice pearls.

The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel

[email protected]

On Twitter @naseemmiller

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AT THE AAD ANNUAL MEETING

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HM14 Special Report: SHM Leadership Committee Meeting

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This year’s SHM leadership committee meeting brought together a great group of thought leaders passionate about developing strong leaders for tomorrow. Hospitalists with an interest in leadership have at their disposal three SHM Leadership Academies. These academies build the foundations of effective leadership, teach team building and conflict resolution, and help leaders better understand finances in hospital medicine. In addition, the Certificate of Leadership in Hospital Medicine (CLHM) is a program through which hospitalists are recognized by SHM for their leadership skills and training.

Hospitalists receive expert consultation and guidance for a hospital system project that they would like to implement in their home institution and upon completion, receive a Certificate of Leadership in Hospital Medicine. One of the committee members also pointed out that as a certified leader himself, he has had more success with recruiting quality, career-oriented hospitalists.

Another exciting endeavor this year is our book club. Look for a definitive date in the near future for our second online book club meeting. I am most certainly excited about this meeting because our book of choice is one of my personal favorites: Lean in: women, work and the will to lead.

As an active community on HMX, we would like to hear from our SHM members, leaders and frontline hospitalists alike, about the kind of resources that you might need to help you become better hospitalist leaders at your institution.

Key Takeaways

  • Explore SHM Leadership Academies: foundation of leadership, personal excellence and team building, advanced leadership;
  • Receive mentorship from experts in our field for a project that you would like to implement at your hospital through SHM’s Certificate of Leadership in Hospital Medicine;
  • Let us know what resources you need to help you lead more effectively; and
  • Join in on the conversation at our next book club meeting where we will discuss Lean in: women, work, and the will to lead.

     

Dr. Kanikkannan is Hospitalist Medical Director and Assistant Professor of Medicine Rowan University School of Osteopathic Medicine and serves on the SHM Leadership Committee. She is a member of Team Hospitalist.

 

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This year’s SHM leadership committee meeting brought together a great group of thought leaders passionate about developing strong leaders for tomorrow. Hospitalists with an interest in leadership have at their disposal three SHM Leadership Academies. These academies build the foundations of effective leadership, teach team building and conflict resolution, and help leaders better understand finances in hospital medicine. In addition, the Certificate of Leadership in Hospital Medicine (CLHM) is a program through which hospitalists are recognized by SHM for their leadership skills and training.

Hospitalists receive expert consultation and guidance for a hospital system project that they would like to implement in their home institution and upon completion, receive a Certificate of Leadership in Hospital Medicine. One of the committee members also pointed out that as a certified leader himself, he has had more success with recruiting quality, career-oriented hospitalists.

Another exciting endeavor this year is our book club. Look for a definitive date in the near future for our second online book club meeting. I am most certainly excited about this meeting because our book of choice is one of my personal favorites: Lean in: women, work and the will to lead.

As an active community on HMX, we would like to hear from our SHM members, leaders and frontline hospitalists alike, about the kind of resources that you might need to help you become better hospitalist leaders at your institution.

Key Takeaways

  • Explore SHM Leadership Academies: foundation of leadership, personal excellence and team building, advanced leadership;
  • Receive mentorship from experts in our field for a project that you would like to implement at your hospital through SHM’s Certificate of Leadership in Hospital Medicine;
  • Let us know what resources you need to help you lead more effectively; and
  • Join in on the conversation at our next book club meeting where we will discuss Lean in: women, work, and the will to lead.

     

Dr. Kanikkannan is Hospitalist Medical Director and Assistant Professor of Medicine Rowan University School of Osteopathic Medicine and serves on the SHM Leadership Committee. She is a member of Team Hospitalist.

 

This year’s SHM leadership committee meeting brought together a great group of thought leaders passionate about developing strong leaders for tomorrow. Hospitalists with an interest in leadership have at their disposal three SHM Leadership Academies. These academies build the foundations of effective leadership, teach team building and conflict resolution, and help leaders better understand finances in hospital medicine. In addition, the Certificate of Leadership in Hospital Medicine (CLHM) is a program through which hospitalists are recognized by SHM for their leadership skills and training.

Hospitalists receive expert consultation and guidance for a hospital system project that they would like to implement in their home institution and upon completion, receive a Certificate of Leadership in Hospital Medicine. One of the committee members also pointed out that as a certified leader himself, he has had more success with recruiting quality, career-oriented hospitalists.

Another exciting endeavor this year is our book club. Look for a definitive date in the near future for our second online book club meeting. I am most certainly excited about this meeting because our book of choice is one of my personal favorites: Lean in: women, work and the will to lead.

As an active community on HMX, we would like to hear from our SHM members, leaders and frontline hospitalists alike, about the kind of resources that you might need to help you become better hospitalist leaders at your institution.

Key Takeaways

  • Explore SHM Leadership Academies: foundation of leadership, personal excellence and team building, advanced leadership;
  • Receive mentorship from experts in our field for a project that you would like to implement at your hospital through SHM’s Certificate of Leadership in Hospital Medicine;
  • Let us know what resources you need to help you lead more effectively; and
  • Join in on the conversation at our next book club meeting where we will discuss Lean in: women, work, and the will to lead.

     

Dr. Kanikkannan is Hospitalist Medical Director and Assistant Professor of Medicine Rowan University School of Osteopathic Medicine and serves on the SHM Leadership Committee. She is a member of Team Hospitalist.

 

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Revascularization saves limbs, costs in elderly

What is the value of limb salvage?
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Revascularization saves limbs, costs in elderly

In older, frailer patients, limb revascularization appeared to preserve both limbs and ambulation longer ? and cost less ? than either amputation or a program of local wound care. Although these patients had worse clinical outcomes than did healthy patients who had revascularization, the benefits were still evident, Dr. Neal R. Barshes and his colleagues wrote in the January issue of Annals of Vascular Surgery.

"We believe that major amputation should be reserved for patients who develop life-threatening foot infections that cannot be controlled with foot drainage or minor amputations and subsequent palliative wound care," wrote Dr. Barshes of the Michael E. DeBakey Veterans Affairs Medical Center, Houston, and his coauthors.

They conducted a clinical outcomes and cost model that ran 1,000 simulated trials of 1,000 patients each. The parameters were drawn from the landmark MOVIE (Model to Optimize Healthcare Value in Ischemic Extremities) study. The study was modified to simulate a patient population older than 80 years, or who had undergone a prior major amputation of the contralateral lower limb, as these two groups have poorer postop outcomes than the usual population undergoing revascularization for lower limb ischemia. The analysis examined outcomes associated with six procedures:

? Primary amputation.

? Local wound care.

? Surgical revascularization followed if needed by surgical revision.

? Surgical revascularization followed if needed by endovascular revision.

? Initial endo revascularization followed if needed by surgical revision.

? Endo revascularization followed if needed by endovascular revision.

Primary amputation was the least clinically beneficial and the most expensive, with no limb salvage, a median ambulatory period of 1.5 years, and a total 10-year cost of $185,955. Much of the cost was for nursing and long-term care due to loss of independence.

Dr. Neal Barshes

Wound care also produced less desirable outcomes. The median 5-year limb salvage rate was 28%. See costs, salvage period, below.

Surgical bypass with either surgical or endo revision produced a limb salvage rate of 80%. Endo revascularization followed by surgical revision produced a 5-year limb salvage rate of 80%. Endo revascularization with endovascular revision produced a 5-year limb salvage rate of 80.5%, with a median salvage period of 3 years and a median ambulatory period of 2.5 years. This was the least expensive.

These outcomes were worse than those seen in the population of younger, healthier patients. The median 10-year cost for revascularization was up to $35,000 more. Clinical outcomes of the older population were also worse, with a 3-year period of limb preservation compared with more than 4 years in a healthier population, and about 2.5 ambulatory years compared with 4.6 years.

"In spite of these findings, revascularization still appears to be the most cost-effective alternative to wound care and primary amputation," the team noted.

The paper did not note any conflicts.

[email protected]

Body

Dr. Barshes and colleagues suggest that an aggressive approach to limb revascularization, both endovascular and open bypass, may be appropriate and cost effective in older, frailer patients.

Certainly, in today?s era of cost-effective care, it is incumbent upon all of us, as health care providers, to further examine these types of issues. However, the studies necessary are not necessarily easy to perform. We must take into account not only the costs of the actual procedures and hospital stays, which are relatively easy to determine, but also the costs of rehabilitation, outpatient nursing care, wound care, and long-term care for those with loss of functional independence. Even this type of study does not assess all aspects that are important, including how much it is worth to maintain a limb and functional independence per year for each patient. What is not so easy to do is to put a value on limb salvage.

Hopefully we will be able to cull out the factors that may impact upon our decisions to re-intervene for critical limb ischemia, versus offering amputation when the patient presents with inadequate perfusion to the limb after initial attempts at limb salvage.

Dr. Linda Harris is an ACS Fellow and division chief, vascular surgery, State University of New York at Buffalo. She has no disclosures.

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Dr. Barshes and colleagues suggest that an aggressive approach to limb revascularization, both endovascular and open bypass, may be appropriate and cost effective in older, frailer patients.

Certainly, in today?s era of cost-effective care, it is incumbent upon all of us, as health care providers, to further examine these types of issues. However, the studies necessary are not necessarily easy to perform. We must take into account not only the costs of the actual procedures and hospital stays, which are relatively easy to determine, but also the costs of rehabilitation, outpatient nursing care, wound care, and long-term care for those with loss of functional independence. Even this type of study does not assess all aspects that are important, including how much it is worth to maintain a limb and functional independence per year for each patient. What is not so easy to do is to put a value on limb salvage.

Hopefully we will be able to cull out the factors that may impact upon our decisions to re-intervene for critical limb ischemia, versus offering amputation when the patient presents with inadequate perfusion to the limb after initial attempts at limb salvage.

Dr. Linda Harris is an ACS Fellow and division chief, vascular surgery, State University of New York at Buffalo. She has no disclosures.

Body

Dr. Barshes and colleagues suggest that an aggressive approach to limb revascularization, both endovascular and open bypass, may be appropriate and cost effective in older, frailer patients.

Certainly, in today?s era of cost-effective care, it is incumbent upon all of us, as health care providers, to further examine these types of issues. However, the studies necessary are not necessarily easy to perform. We must take into account not only the costs of the actual procedures and hospital stays, which are relatively easy to determine, but also the costs of rehabilitation, outpatient nursing care, wound care, and long-term care for those with loss of functional independence. Even this type of study does not assess all aspects that are important, including how much it is worth to maintain a limb and functional independence per year for each patient. What is not so easy to do is to put a value on limb salvage.

Hopefully we will be able to cull out the factors that may impact upon our decisions to re-intervene for critical limb ischemia, versus offering amputation when the patient presents with inadequate perfusion to the limb after initial attempts at limb salvage.

Dr. Linda Harris is an ACS Fellow and division chief, vascular surgery, State University of New York at Buffalo. She has no disclosures.

Title
What is the value of limb salvage?
What is the value of limb salvage?

In older, frailer patients, limb revascularization appeared to preserve both limbs and ambulation longer ? and cost less ? than either amputation or a program of local wound care. Although these patients had worse clinical outcomes than did healthy patients who had revascularization, the benefits were still evident, Dr. Neal R. Barshes and his colleagues wrote in the January issue of Annals of Vascular Surgery.

"We believe that major amputation should be reserved for patients who develop life-threatening foot infections that cannot be controlled with foot drainage or minor amputations and subsequent palliative wound care," wrote Dr. Barshes of the Michael E. DeBakey Veterans Affairs Medical Center, Houston, and his coauthors.

They conducted a clinical outcomes and cost model that ran 1,000 simulated trials of 1,000 patients each. The parameters were drawn from the landmark MOVIE (Model to Optimize Healthcare Value in Ischemic Extremities) study. The study was modified to simulate a patient population older than 80 years, or who had undergone a prior major amputation of the contralateral lower limb, as these two groups have poorer postop outcomes than the usual population undergoing revascularization for lower limb ischemia. The analysis examined outcomes associated with six procedures:

? Primary amputation.

? Local wound care.

? Surgical revascularization followed if needed by surgical revision.

? Surgical revascularization followed if needed by endovascular revision.

? Initial endo revascularization followed if needed by surgical revision.

? Endo revascularization followed if needed by endovascular revision.

Primary amputation was the least clinically beneficial and the most expensive, with no limb salvage, a median ambulatory period of 1.5 years, and a total 10-year cost of $185,955. Much of the cost was for nursing and long-term care due to loss of independence.

Dr. Neal Barshes

Wound care also produced less desirable outcomes. The median 5-year limb salvage rate was 28%. See costs, salvage period, below.

Surgical bypass with either surgical or endo revision produced a limb salvage rate of 80%. Endo revascularization followed by surgical revision produced a 5-year limb salvage rate of 80%. Endo revascularization with endovascular revision produced a 5-year limb salvage rate of 80.5%, with a median salvage period of 3 years and a median ambulatory period of 2.5 years. This was the least expensive.

These outcomes were worse than those seen in the population of younger, healthier patients. The median 10-year cost for revascularization was up to $35,000 more. Clinical outcomes of the older population were also worse, with a 3-year period of limb preservation compared with more than 4 years in a healthier population, and about 2.5 ambulatory years compared with 4.6 years.

"In spite of these findings, revascularization still appears to be the most cost-effective alternative to wound care and primary amputation," the team noted.

The paper did not note any conflicts.

[email protected]

In older, frailer patients, limb revascularization appeared to preserve both limbs and ambulation longer ? and cost less ? than either amputation or a program of local wound care. Although these patients had worse clinical outcomes than did healthy patients who had revascularization, the benefits were still evident, Dr. Neal R. Barshes and his colleagues wrote in the January issue of Annals of Vascular Surgery.

"We believe that major amputation should be reserved for patients who develop life-threatening foot infections that cannot be controlled with foot drainage or minor amputations and subsequent palliative wound care," wrote Dr. Barshes of the Michael E. DeBakey Veterans Affairs Medical Center, Houston, and his coauthors.

They conducted a clinical outcomes and cost model that ran 1,000 simulated trials of 1,000 patients each. The parameters were drawn from the landmark MOVIE (Model to Optimize Healthcare Value in Ischemic Extremities) study. The study was modified to simulate a patient population older than 80 years, or who had undergone a prior major amputation of the contralateral lower limb, as these two groups have poorer postop outcomes than the usual population undergoing revascularization for lower limb ischemia. The analysis examined outcomes associated with six procedures:

? Primary amputation.

? Local wound care.

? Surgical revascularization followed if needed by surgical revision.

? Surgical revascularization followed if needed by endovascular revision.

? Initial endo revascularization followed if needed by surgical revision.

? Endo revascularization followed if needed by endovascular revision.

Primary amputation was the least clinically beneficial and the most expensive, with no limb salvage, a median ambulatory period of 1.5 years, and a total 10-year cost of $185,955. Much of the cost was for nursing and long-term care due to loss of independence.

Dr. Neal Barshes

Wound care also produced less desirable outcomes. The median 5-year limb salvage rate was 28%. See costs, salvage period, below.

Surgical bypass with either surgical or endo revision produced a limb salvage rate of 80%. Endo revascularization followed by surgical revision produced a 5-year limb salvage rate of 80%. Endo revascularization with endovascular revision produced a 5-year limb salvage rate of 80.5%, with a median salvage period of 3 years and a median ambulatory period of 2.5 years. This was the least expensive.

These outcomes were worse than those seen in the population of younger, healthier patients. The median 10-year cost for revascularization was up to $35,000 more. Clinical outcomes of the older population were also worse, with a 3-year period of limb preservation compared with more than 4 years in a healthier population, and about 2.5 ambulatory years compared with 4.6 years.

"In spite of these findings, revascularization still appears to be the most cost-effective alternative to wound care and primary amputation," the team noted.

The paper did not note any conflicts.

[email protected]

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Major finding: In older, more frail patients, lower limb revascularization cost up to $90,000 less over 10 years, and yielded better clinical outcomes, than did primary amputation.

Data source: The clinical and cost outcomes model simulated 1,000 trials of 1,000 patients each.

Disclosures: The paper did not note any potential financial conflicts of interest or the study?s sponsor.

Some docs are wary of multiplex genomic testing

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Results of a survey suggest that some physicians aren’t ready to embrace multiplex genomic testing in cancer patients, while others plan to offer the testing to most of their patients.

The variation in attitudes is, in part, associated with physician confidence.

Physicians who reported having a lot of confidence in their ability to use and explain genomic findings were more likely to want to prescribe tests and consider using test results when making treatment recommendations.

But physicians with lower levels of confidence were more reluctant to offer such testing.

Researchers were surprised by these findings because the survey was carried out at the Dana-Farber/Brigham and Women’s Cancer Center, which has a research program that allows all consenting patients to undergo tests to reveal mutations and other DNA changes that drive their cancer.

The team was perplexed by another finding as well. Forty-two percent of responding oncologists approved of telling patients about test results even when their significance for the patient’s outlook and treatment is uncertain.

This issue comes with the growing use of multiplex testing, which can hunt for tens or hundreds of mutant genes simultaneously and often detects rare DNA variants that may or may not be relevant to an individual’s cancer.

“Some oncologists said we shouldn’t return these results to the patient, and others say, ‘Of course, we should give them to the patient,’” said study author Stacy W. Gray, MD, of the Dana-Farber Cancer Institute in Boston.

“The fact that we found so much variation in physicians’ confidence about their ability to use genetic data at a tertiary care National Cancer Institute-designated Comprehensive Cancer Center makes us pause and wonder about how confident physicians in the community are about dealing with this. It begs the question at a national level: how are we going to make sure that this technology for cancer care is adequately delivered?”

The survey was conducted in 2011 and early 2012 as a baseline assessment of physicians’ attitudes prior to the rollout of a tumor profiling project called Profile. The Profile technology platform includes complete DNA sequencing of more than 300 genomic regions to detect known and unknown cancer-related mutations.

The technology can also examine those regions for gains and losses of DNA sequences and rearrangements of DNA on chromosomes. The results are entered into a database for research purposes, but, if patients agree, the clinically important findings can also be returned to their doctor for use in the clinic.

A total of 160 cancer physicians—including medical oncologists, surgeons, and radiation oncologists—participated in the survey.

They were asked about their current use of somatic testing, their attitudes about multiplex testing, and their confidence in their ability to understand and use genomic data. The survey did not include a direct test of the physicians’ knowledge.

Respondents said they ordered tumor genomic testing on an average of 24% of patients. Twenty-two percent of the doctors reported low confidence in their knowledge about genomics.

Fourteen percent lacked knowledge in explaining these concepts to patients, and 26% doubted their ability to make treatment recommendations based on genomic data. Perhaps for these reasons, 18% of the physicians said they planned to use multiplex tumor testing infrequently.

Dr Gray and her colleagues concluded that there is “little consensus” on how physicians plan to use this technology for personalized cancer care and suggested the need for evidence-based guidelines to help doctors determine when testing is indicated.

The researchers reported their findings in the Journal of Clinical Oncology. A related editorial is available in the journal as well.

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Results of a survey suggest that some physicians aren’t ready to embrace multiplex genomic testing in cancer patients, while others plan to offer the testing to most of their patients.

The variation in attitudes is, in part, associated with physician confidence.

Physicians who reported having a lot of confidence in their ability to use and explain genomic findings were more likely to want to prescribe tests and consider using test results when making treatment recommendations.

But physicians with lower levels of confidence were more reluctant to offer such testing.

Researchers were surprised by these findings because the survey was carried out at the Dana-Farber/Brigham and Women’s Cancer Center, which has a research program that allows all consenting patients to undergo tests to reveal mutations and other DNA changes that drive their cancer.

The team was perplexed by another finding as well. Forty-two percent of responding oncologists approved of telling patients about test results even when their significance for the patient’s outlook and treatment is uncertain.

This issue comes with the growing use of multiplex testing, which can hunt for tens or hundreds of mutant genes simultaneously and often detects rare DNA variants that may or may not be relevant to an individual’s cancer.

“Some oncologists said we shouldn’t return these results to the patient, and others say, ‘Of course, we should give them to the patient,’” said study author Stacy W. Gray, MD, of the Dana-Farber Cancer Institute in Boston.

“The fact that we found so much variation in physicians’ confidence about their ability to use genetic data at a tertiary care National Cancer Institute-designated Comprehensive Cancer Center makes us pause and wonder about how confident physicians in the community are about dealing with this. It begs the question at a national level: how are we going to make sure that this technology for cancer care is adequately delivered?”

The survey was conducted in 2011 and early 2012 as a baseline assessment of physicians’ attitudes prior to the rollout of a tumor profiling project called Profile. The Profile technology platform includes complete DNA sequencing of more than 300 genomic regions to detect known and unknown cancer-related mutations.

The technology can also examine those regions for gains and losses of DNA sequences and rearrangements of DNA on chromosomes. The results are entered into a database for research purposes, but, if patients agree, the clinically important findings can also be returned to their doctor for use in the clinic.

A total of 160 cancer physicians—including medical oncologists, surgeons, and radiation oncologists—participated in the survey.

They were asked about their current use of somatic testing, their attitudes about multiplex testing, and their confidence in their ability to understand and use genomic data. The survey did not include a direct test of the physicians’ knowledge.

Respondents said they ordered tumor genomic testing on an average of 24% of patients. Twenty-two percent of the doctors reported low confidence in their knowledge about genomics.

Fourteen percent lacked knowledge in explaining these concepts to patients, and 26% doubted their ability to make treatment recommendations based on genomic data. Perhaps for these reasons, 18% of the physicians said they planned to use multiplex tumor testing infrequently.

Dr Gray and her colleagues concluded that there is “little consensus” on how physicians plan to use this technology for personalized cancer care and suggested the need for evidence-based guidelines to help doctors determine when testing is indicated.

The researchers reported their findings in the Journal of Clinical Oncology. A related editorial is available in the journal as well.

National Institute of

General Medical Sciences

Results of a survey suggest that some physicians aren’t ready to embrace multiplex genomic testing in cancer patients, while others plan to offer the testing to most of their patients.

The variation in attitudes is, in part, associated with physician confidence.

Physicians who reported having a lot of confidence in their ability to use and explain genomic findings were more likely to want to prescribe tests and consider using test results when making treatment recommendations.

But physicians with lower levels of confidence were more reluctant to offer such testing.

Researchers were surprised by these findings because the survey was carried out at the Dana-Farber/Brigham and Women’s Cancer Center, which has a research program that allows all consenting patients to undergo tests to reveal mutations and other DNA changes that drive their cancer.

The team was perplexed by another finding as well. Forty-two percent of responding oncologists approved of telling patients about test results even when their significance for the patient’s outlook and treatment is uncertain.

This issue comes with the growing use of multiplex testing, which can hunt for tens or hundreds of mutant genes simultaneously and often detects rare DNA variants that may or may not be relevant to an individual’s cancer.

“Some oncologists said we shouldn’t return these results to the patient, and others say, ‘Of course, we should give them to the patient,’” said study author Stacy W. Gray, MD, of the Dana-Farber Cancer Institute in Boston.

“The fact that we found so much variation in physicians’ confidence about their ability to use genetic data at a tertiary care National Cancer Institute-designated Comprehensive Cancer Center makes us pause and wonder about how confident physicians in the community are about dealing with this. It begs the question at a national level: how are we going to make sure that this technology for cancer care is adequately delivered?”

The survey was conducted in 2011 and early 2012 as a baseline assessment of physicians’ attitudes prior to the rollout of a tumor profiling project called Profile. The Profile technology platform includes complete DNA sequencing of more than 300 genomic regions to detect known and unknown cancer-related mutations.

The technology can also examine those regions for gains and losses of DNA sequences and rearrangements of DNA on chromosomes. The results are entered into a database for research purposes, but, if patients agree, the clinically important findings can also be returned to their doctor for use in the clinic.

A total of 160 cancer physicians—including medical oncologists, surgeons, and radiation oncologists—participated in the survey.

They were asked about their current use of somatic testing, their attitudes about multiplex testing, and their confidence in their ability to understand and use genomic data. The survey did not include a direct test of the physicians’ knowledge.

Respondents said they ordered tumor genomic testing on an average of 24% of patients. Twenty-two percent of the doctors reported low confidence in their knowledge about genomics.

Fourteen percent lacked knowledge in explaining these concepts to patients, and 26% doubted their ability to make treatment recommendations based on genomic data. Perhaps for these reasons, 18% of the physicians said they planned to use multiplex tumor testing infrequently.

Dr Gray and her colleagues concluded that there is “little consensus” on how physicians plan to use this technology for personalized cancer care and suggested the need for evidence-based guidelines to help doctors determine when testing is indicated.

The researchers reported their findings in the Journal of Clinical Oncology. A related editorial is available in the journal as well.

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