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In 2012, a small group of specialists, consisting of a critical care pulmonologist, cardiologist, cardiac surgeon, and vascular specialist, at Massachusetts General Hospital, Boston, met to Monday morning quarterback an acute pulmonary embolism case that didn’t go as well as they’d hoped. They came up with a concept known as the pulmonary embolism response team – PERT for short – an idea that soon took hold in other centers and served as the vanguard to other innovative approaches to managing critical care patients with PE, which is the third-leading cause of cardiovascular death in the United States (Intern Emerg Med. 2023. doi: 10.1007/s11739-022-03180-w).
Three years later the PERT Consortium came together, which today has 102 members, according to the organization’s website (www.pertconsortium.org), and members in South America, Europe, Asia, and Australia. Since then, and apps to expedite diagnosis and treatment. The PERT Consortium, meanwhile, is in the process of creating the PE Centers of Excellence program to certify centers that meet certain requirements.
“Part of the reason we recognized that a discussion across specialties was important was because there weren’t the large clinical trials that could tell us exactly what to do for any given case,” said Christopher Kabrhel, MD, MPH, director of the Center for Vascular Emergencies at Mass General and a professor at Harvard Medical School in Boston, who assembled that formative meeting. “Without a clear basis in data, it was really important to have all the different specialists weigh in and give their perspective and talk about what was the best approach for the patient’s care.”
Filling data gaps
Some of those data gaps persist today, Dr. Kabrhel said. “It’s precisely that lack of head-to-head data that existed in 2012, and to a great extent still exists today, that led us to create this system.” The American Heart Association just this January issued a scientific statement on surgical management and mechanical circulatory support in high-risk PE (Circulation. 2023;147:e628-47).
But the intervening research has been uneven. The Pulmonary Embolism Thrombolysis (PEITHO) trial in 2014 evaluated systemic thrombolysis and anticoagulation alone (N Engl J Med. 2014;370:1402-11), but head-to-head studies of catheter-directed thrombolysis (CDT), which was just emerging in 2012, and either systemic thrombolysis or anticoagulation have been lacking, Dr. Kabrhel said. The Hi-PEITHO trial in high-risk PE patients is evaluating ultrasound-guided CDT plus anticoagulation vs. anticoagulation alone (Am Heart J. 2022:251:43-54), but it isn’t complete.
“The therapeutic landscape for PE is evolving incredibly rapidly,” he said. “When we first started PERT we were just starting to see CDT. Since then, we’ve seen several new thrombolytic catheters come onto the market, but there’s also been a proliferation of suction embolectomy catheters and we’ve seen a potentially larger role for surgery and the use of ECMO [extracorporeal membrane oxygenation] or cardiac bypass to bridge patients to definitive therapy. With the rapid evolution and the seemingly daily addition of new therapeutic options, I think the need for PERT is only increasing.”
A recent study out of the University of Michigan reported that the PERT there led to a decrease in the use of advanced therapies given to acute PE patients without reducing mortality or extending hospital stays (Thromb Res. 2023;221:73-8). A study in Spain reported that patients with high-risk and intermediate high-risk PE who had PERT-coordinated care had half the 12-month mortality rate of non-PERT counterparts, 9% vs. 22.2% (P = .02) (Med Clin [Barc]. 2023;S0025-7753(23)00017-9). And a 2021 study at University Hospitals in Cleveland reported that PERT-managed PE patients had a 60% lower rate of adverse outcomes at 90 days than non–PERT-managed patients (J Invasive Cardiol. 2021;33:E173-E180).
Nelish Ardeshna, MD, MA, the lead author of the Michigan study, said the PERT there was formed in 2017. Besides the multispecialty team that can be summoned to a teleconference on short notice, the protocol includes having at least one noninvasive specialist, such as a cardiologist or hospitalist, and one interventionalist, such as a radiologist, always on call. The PERT gets activated through the paging system after a hospital or emergency department physician identifies a suspected or established high-risk PE.
“High-risk PE patients can present in all settings, including the emergency department, ICU, surgical floor, or medical floor,” said Dr. Ardeshna, an internal medicine resident. “Management for these patients is equally varied from anticoagulation to systemic thrombolytics. Not all providers may be familiar with current guidelines to select the optimal therapy for high-risk pulmonary embolism patients. PERT aims to bridge that gap by providing a multidisciplinary discussion with PE specialists that can help identify the correct therapeutic options for optimal outcomes.”
At Cleveland Clinic, where the PERT has been in place since 2012, the PERT can consist of six to eight different specialties and involve up to 15 providers on a conference call, said Leben Tefera, MD, a vascular specialist and head of the PERT team there.
“Each patient will come in and have certain comorbidities,” Dr. Tefera said. “The unfortunate thing about a majority of the PEs that we see, in particular ones [in patients] that are very sick and require inpatient treatment, is that they don’t really fit into a box; you can’t come up with one kind of generic care routine or care path that treats the majority of patients with PE.”
Evolving to follow-up care
As the PERT protocol led to better inpatient outcomes, the teams became more aware that discharged PE patients were struggling with mental health and other quality-of-life issues – symptoms that have been understudied, according to a protocol Dr. Tefera coauthored for a prospective observational study of psychological distress symptoms in PE survivors. By contrast, the protocol noted, these symptoms have been studied extensively in myocardial infarction and stroke patients (Res Pract Thromb Hemost. 2023. doi: 10.1016/j.rpth.2023.10045). Other studies have found that 35%-50% of patients reported mental health symptoms 3 months after PE (Chest. 2021;159:2428-38; Qual Life Res. 2019;28:2111-24).
“A lot of physicians have known it for quite some time, but it wasn’t really until the last couple of years that physicians started saying psychological stress is something that we need to quantify and that we need to actually treat, that we actually need to address,” Dr. Tefera said. That led Dr. Tefera and his Cleveland Clinic PERT colleagues to set up a follow-up clinic for PE patients.
At their follow-up visits, patients complete validated questionnaires about anxiety, depression, fear of recurrence, PE-specific quality of life, and posttraumatic stress disorder. “If they flag as positive, we give them a referral to an in-house psychologist,” he said. “One thing I can report is that patients absolutely, positively love this, because it’s something that they are all experiencing that a lot of physicians just aren’t addressing.”
Artificial intelligence emerges
At the University of Pittsburgh Medical Center, the PERT has started evaluating artificial intelligence to aid in PE diagnosis. Belinda Rivera-Lebron, MD, director of the acute and chronic embolism program at Pitt, explained that the AI protocol hasn’t been adopted yet, but the concept is to have a platform that’s compatible with the hospital system’s electronic medical record.
She described how AI would work once the PERT is activated. “Once the patient goes through the CT scanner, within 60 seconds of that scan being completed, the scan gets uploaded into the cloud and the app or the platform is able to tell you whether there is PE present or absent, and whether there is right ventricle dilation on that scan. This is even before you probably even think about opening up the computer to look at the scan, and even before radiology opens up the scan to read,” she said. “It’s so fast.”
The idea is to send the scans rapidly to the PERT. “It will send you a text, a notification on your phone that will tell you Mr. Smith is PE positive,” Dr. Rivera-Lebron said. “Then you open it and you are able to scroll through the CT scan in your phone. So, it’s really remarkable.”
Clinical trials worth watching
Meanwhile, a number of clinical trials have started to enroll patients, or will soon, that Dr. Rivera-Lebron said are worth paying attention to.
PEITHO-3 is a randomized, placebo-controlled trial with long-term follow-up comparing the efficacy of a reduced-dose alteplase regimen or standard heparin anticoagulation in patients with intermediate to high-risk PE (Thromb Haemost. 2022;122:867-66).
PEERLESS is a prospective randomized trial comparing mechanical thrombectomy and CDT (ClinicalTrials.gov identifier NCT05111613).
PE-Thrombus Removal with Catheter-directed Therapy (PE-TRACT) is an open-label Phase 3 trial comparing anticoagulation and CDT that’s not yet recruiting (ClinicalTrials.gov identifier NCT05591118).
FlowTriever for Acute Massive Pulmonary Embolism (FLAME) is a prospective cohort study evaluating a clot-retrieving device in high-risk PE patients (ClinicalTrials.gov identifier NCT04795167).
When completed and published, these trials could provide PERTs more evidence for their decision-making.
Dr. Ardeshna and Dr. Tefera have no relevant relationships to disclose. Dr. Rivera-Lebron disclosed relationships with INARI Catheter and Johnson & Johnson. Dr. Kabrhel disclosed relationships with Bristol Myers Squibb and Pfizer.
In 2012, a small group of specialists, consisting of a critical care pulmonologist, cardiologist, cardiac surgeon, and vascular specialist, at Massachusetts General Hospital, Boston, met to Monday morning quarterback an acute pulmonary embolism case that didn’t go as well as they’d hoped. They came up with a concept known as the pulmonary embolism response team – PERT for short – an idea that soon took hold in other centers and served as the vanguard to other innovative approaches to managing critical care patients with PE, which is the third-leading cause of cardiovascular death in the United States (Intern Emerg Med. 2023. doi: 10.1007/s11739-022-03180-w).
Three years later the PERT Consortium came together, which today has 102 members, according to the organization’s website (www.pertconsortium.org), and members in South America, Europe, Asia, and Australia. Since then, and apps to expedite diagnosis and treatment. The PERT Consortium, meanwhile, is in the process of creating the PE Centers of Excellence program to certify centers that meet certain requirements.
“Part of the reason we recognized that a discussion across specialties was important was because there weren’t the large clinical trials that could tell us exactly what to do for any given case,” said Christopher Kabrhel, MD, MPH, director of the Center for Vascular Emergencies at Mass General and a professor at Harvard Medical School in Boston, who assembled that formative meeting. “Without a clear basis in data, it was really important to have all the different specialists weigh in and give their perspective and talk about what was the best approach for the patient’s care.”
Filling data gaps
Some of those data gaps persist today, Dr. Kabrhel said. “It’s precisely that lack of head-to-head data that existed in 2012, and to a great extent still exists today, that led us to create this system.” The American Heart Association just this January issued a scientific statement on surgical management and mechanical circulatory support in high-risk PE (Circulation. 2023;147:e628-47).
But the intervening research has been uneven. The Pulmonary Embolism Thrombolysis (PEITHO) trial in 2014 evaluated systemic thrombolysis and anticoagulation alone (N Engl J Med. 2014;370:1402-11), but head-to-head studies of catheter-directed thrombolysis (CDT), which was just emerging in 2012, and either systemic thrombolysis or anticoagulation have been lacking, Dr. Kabrhel said. The Hi-PEITHO trial in high-risk PE patients is evaluating ultrasound-guided CDT plus anticoagulation vs. anticoagulation alone (Am Heart J. 2022:251:43-54), but it isn’t complete.
“The therapeutic landscape for PE is evolving incredibly rapidly,” he said. “When we first started PERT we were just starting to see CDT. Since then, we’ve seen several new thrombolytic catheters come onto the market, but there’s also been a proliferation of suction embolectomy catheters and we’ve seen a potentially larger role for surgery and the use of ECMO [extracorporeal membrane oxygenation] or cardiac bypass to bridge patients to definitive therapy. With the rapid evolution and the seemingly daily addition of new therapeutic options, I think the need for PERT is only increasing.”
A recent study out of the University of Michigan reported that the PERT there led to a decrease in the use of advanced therapies given to acute PE patients without reducing mortality or extending hospital stays (Thromb Res. 2023;221:73-8). A study in Spain reported that patients with high-risk and intermediate high-risk PE who had PERT-coordinated care had half the 12-month mortality rate of non-PERT counterparts, 9% vs. 22.2% (P = .02) (Med Clin [Barc]. 2023;S0025-7753(23)00017-9). And a 2021 study at University Hospitals in Cleveland reported that PERT-managed PE patients had a 60% lower rate of adverse outcomes at 90 days than non–PERT-managed patients (J Invasive Cardiol. 2021;33:E173-E180).
Nelish Ardeshna, MD, MA, the lead author of the Michigan study, said the PERT there was formed in 2017. Besides the multispecialty team that can be summoned to a teleconference on short notice, the protocol includes having at least one noninvasive specialist, such as a cardiologist or hospitalist, and one interventionalist, such as a radiologist, always on call. The PERT gets activated through the paging system after a hospital or emergency department physician identifies a suspected or established high-risk PE.
“High-risk PE patients can present in all settings, including the emergency department, ICU, surgical floor, or medical floor,” said Dr. Ardeshna, an internal medicine resident. “Management for these patients is equally varied from anticoagulation to systemic thrombolytics. Not all providers may be familiar with current guidelines to select the optimal therapy for high-risk pulmonary embolism patients. PERT aims to bridge that gap by providing a multidisciplinary discussion with PE specialists that can help identify the correct therapeutic options for optimal outcomes.”
At Cleveland Clinic, where the PERT has been in place since 2012, the PERT can consist of six to eight different specialties and involve up to 15 providers on a conference call, said Leben Tefera, MD, a vascular specialist and head of the PERT team there.
“Each patient will come in and have certain comorbidities,” Dr. Tefera said. “The unfortunate thing about a majority of the PEs that we see, in particular ones [in patients] that are very sick and require inpatient treatment, is that they don’t really fit into a box; you can’t come up with one kind of generic care routine or care path that treats the majority of patients with PE.”
Evolving to follow-up care
As the PERT protocol led to better inpatient outcomes, the teams became more aware that discharged PE patients were struggling with mental health and other quality-of-life issues – symptoms that have been understudied, according to a protocol Dr. Tefera coauthored for a prospective observational study of psychological distress symptoms in PE survivors. By contrast, the protocol noted, these symptoms have been studied extensively in myocardial infarction and stroke patients (Res Pract Thromb Hemost. 2023. doi: 10.1016/j.rpth.2023.10045). Other studies have found that 35%-50% of patients reported mental health symptoms 3 months after PE (Chest. 2021;159:2428-38; Qual Life Res. 2019;28:2111-24).
“A lot of physicians have known it for quite some time, but it wasn’t really until the last couple of years that physicians started saying psychological stress is something that we need to quantify and that we need to actually treat, that we actually need to address,” Dr. Tefera said. That led Dr. Tefera and his Cleveland Clinic PERT colleagues to set up a follow-up clinic for PE patients.
At their follow-up visits, patients complete validated questionnaires about anxiety, depression, fear of recurrence, PE-specific quality of life, and posttraumatic stress disorder. “If they flag as positive, we give them a referral to an in-house psychologist,” he said. “One thing I can report is that patients absolutely, positively love this, because it’s something that they are all experiencing that a lot of physicians just aren’t addressing.”
Artificial intelligence emerges
At the University of Pittsburgh Medical Center, the PERT has started evaluating artificial intelligence to aid in PE diagnosis. Belinda Rivera-Lebron, MD, director of the acute and chronic embolism program at Pitt, explained that the AI protocol hasn’t been adopted yet, but the concept is to have a platform that’s compatible with the hospital system’s electronic medical record.
She described how AI would work once the PERT is activated. “Once the patient goes through the CT scanner, within 60 seconds of that scan being completed, the scan gets uploaded into the cloud and the app or the platform is able to tell you whether there is PE present or absent, and whether there is right ventricle dilation on that scan. This is even before you probably even think about opening up the computer to look at the scan, and even before radiology opens up the scan to read,” she said. “It’s so fast.”
The idea is to send the scans rapidly to the PERT. “It will send you a text, a notification on your phone that will tell you Mr. Smith is PE positive,” Dr. Rivera-Lebron said. “Then you open it and you are able to scroll through the CT scan in your phone. So, it’s really remarkable.”
Clinical trials worth watching
Meanwhile, a number of clinical trials have started to enroll patients, or will soon, that Dr. Rivera-Lebron said are worth paying attention to.
PEITHO-3 is a randomized, placebo-controlled trial with long-term follow-up comparing the efficacy of a reduced-dose alteplase regimen or standard heparin anticoagulation in patients with intermediate to high-risk PE (Thromb Haemost. 2022;122:867-66).
PEERLESS is a prospective randomized trial comparing mechanical thrombectomy and CDT (ClinicalTrials.gov identifier NCT05111613).
PE-Thrombus Removal with Catheter-directed Therapy (PE-TRACT) is an open-label Phase 3 trial comparing anticoagulation and CDT that’s not yet recruiting (ClinicalTrials.gov identifier NCT05591118).
FlowTriever for Acute Massive Pulmonary Embolism (FLAME) is a prospective cohort study evaluating a clot-retrieving device in high-risk PE patients (ClinicalTrials.gov identifier NCT04795167).
When completed and published, these trials could provide PERTs more evidence for their decision-making.
Dr. Ardeshna and Dr. Tefera have no relevant relationships to disclose. Dr. Rivera-Lebron disclosed relationships with INARI Catheter and Johnson & Johnson. Dr. Kabrhel disclosed relationships with Bristol Myers Squibb and Pfizer.
In 2012, a small group of specialists, consisting of a critical care pulmonologist, cardiologist, cardiac surgeon, and vascular specialist, at Massachusetts General Hospital, Boston, met to Monday morning quarterback an acute pulmonary embolism case that didn’t go as well as they’d hoped. They came up with a concept known as the pulmonary embolism response team – PERT for short – an idea that soon took hold in other centers and served as the vanguard to other innovative approaches to managing critical care patients with PE, which is the third-leading cause of cardiovascular death in the United States (Intern Emerg Med. 2023. doi: 10.1007/s11739-022-03180-w).
Three years later the PERT Consortium came together, which today has 102 members, according to the organization’s website (www.pertconsortium.org), and members in South America, Europe, Asia, and Australia. Since then, and apps to expedite diagnosis and treatment. The PERT Consortium, meanwhile, is in the process of creating the PE Centers of Excellence program to certify centers that meet certain requirements.
“Part of the reason we recognized that a discussion across specialties was important was because there weren’t the large clinical trials that could tell us exactly what to do for any given case,” said Christopher Kabrhel, MD, MPH, director of the Center for Vascular Emergencies at Mass General and a professor at Harvard Medical School in Boston, who assembled that formative meeting. “Without a clear basis in data, it was really important to have all the different specialists weigh in and give their perspective and talk about what was the best approach for the patient’s care.”
Filling data gaps
Some of those data gaps persist today, Dr. Kabrhel said. “It’s precisely that lack of head-to-head data that existed in 2012, and to a great extent still exists today, that led us to create this system.” The American Heart Association just this January issued a scientific statement on surgical management and mechanical circulatory support in high-risk PE (Circulation. 2023;147:e628-47).
But the intervening research has been uneven. The Pulmonary Embolism Thrombolysis (PEITHO) trial in 2014 evaluated systemic thrombolysis and anticoagulation alone (N Engl J Med. 2014;370:1402-11), but head-to-head studies of catheter-directed thrombolysis (CDT), which was just emerging in 2012, and either systemic thrombolysis or anticoagulation have been lacking, Dr. Kabrhel said. The Hi-PEITHO trial in high-risk PE patients is evaluating ultrasound-guided CDT plus anticoagulation vs. anticoagulation alone (Am Heart J. 2022:251:43-54), but it isn’t complete.
“The therapeutic landscape for PE is evolving incredibly rapidly,” he said. “When we first started PERT we were just starting to see CDT. Since then, we’ve seen several new thrombolytic catheters come onto the market, but there’s also been a proliferation of suction embolectomy catheters and we’ve seen a potentially larger role for surgery and the use of ECMO [extracorporeal membrane oxygenation] or cardiac bypass to bridge patients to definitive therapy. With the rapid evolution and the seemingly daily addition of new therapeutic options, I think the need for PERT is only increasing.”
A recent study out of the University of Michigan reported that the PERT there led to a decrease in the use of advanced therapies given to acute PE patients without reducing mortality or extending hospital stays (Thromb Res. 2023;221:73-8). A study in Spain reported that patients with high-risk and intermediate high-risk PE who had PERT-coordinated care had half the 12-month mortality rate of non-PERT counterparts, 9% vs. 22.2% (P = .02) (Med Clin [Barc]. 2023;S0025-7753(23)00017-9). And a 2021 study at University Hospitals in Cleveland reported that PERT-managed PE patients had a 60% lower rate of adverse outcomes at 90 days than non–PERT-managed patients (J Invasive Cardiol. 2021;33:E173-E180).
Nelish Ardeshna, MD, MA, the lead author of the Michigan study, said the PERT there was formed in 2017. Besides the multispecialty team that can be summoned to a teleconference on short notice, the protocol includes having at least one noninvasive specialist, such as a cardiologist or hospitalist, and one interventionalist, such as a radiologist, always on call. The PERT gets activated through the paging system after a hospital or emergency department physician identifies a suspected or established high-risk PE.
“High-risk PE patients can present in all settings, including the emergency department, ICU, surgical floor, or medical floor,” said Dr. Ardeshna, an internal medicine resident. “Management for these patients is equally varied from anticoagulation to systemic thrombolytics. Not all providers may be familiar with current guidelines to select the optimal therapy for high-risk pulmonary embolism patients. PERT aims to bridge that gap by providing a multidisciplinary discussion with PE specialists that can help identify the correct therapeutic options for optimal outcomes.”
At Cleveland Clinic, where the PERT has been in place since 2012, the PERT can consist of six to eight different specialties and involve up to 15 providers on a conference call, said Leben Tefera, MD, a vascular specialist and head of the PERT team there.
“Each patient will come in and have certain comorbidities,” Dr. Tefera said. “The unfortunate thing about a majority of the PEs that we see, in particular ones [in patients] that are very sick and require inpatient treatment, is that they don’t really fit into a box; you can’t come up with one kind of generic care routine or care path that treats the majority of patients with PE.”
Evolving to follow-up care
As the PERT protocol led to better inpatient outcomes, the teams became more aware that discharged PE patients were struggling with mental health and other quality-of-life issues – symptoms that have been understudied, according to a protocol Dr. Tefera coauthored for a prospective observational study of psychological distress symptoms in PE survivors. By contrast, the protocol noted, these symptoms have been studied extensively in myocardial infarction and stroke patients (Res Pract Thromb Hemost. 2023. doi: 10.1016/j.rpth.2023.10045). Other studies have found that 35%-50% of patients reported mental health symptoms 3 months after PE (Chest. 2021;159:2428-38; Qual Life Res. 2019;28:2111-24).
“A lot of physicians have known it for quite some time, but it wasn’t really until the last couple of years that physicians started saying psychological stress is something that we need to quantify and that we need to actually treat, that we actually need to address,” Dr. Tefera said. That led Dr. Tefera and his Cleveland Clinic PERT colleagues to set up a follow-up clinic for PE patients.
At their follow-up visits, patients complete validated questionnaires about anxiety, depression, fear of recurrence, PE-specific quality of life, and posttraumatic stress disorder. “If they flag as positive, we give them a referral to an in-house psychologist,” he said. “One thing I can report is that patients absolutely, positively love this, because it’s something that they are all experiencing that a lot of physicians just aren’t addressing.”
Artificial intelligence emerges
At the University of Pittsburgh Medical Center, the PERT has started evaluating artificial intelligence to aid in PE diagnosis. Belinda Rivera-Lebron, MD, director of the acute and chronic embolism program at Pitt, explained that the AI protocol hasn’t been adopted yet, but the concept is to have a platform that’s compatible with the hospital system’s electronic medical record.
She described how AI would work once the PERT is activated. “Once the patient goes through the CT scanner, within 60 seconds of that scan being completed, the scan gets uploaded into the cloud and the app or the platform is able to tell you whether there is PE present or absent, and whether there is right ventricle dilation on that scan. This is even before you probably even think about opening up the computer to look at the scan, and even before radiology opens up the scan to read,” she said. “It’s so fast.”
The idea is to send the scans rapidly to the PERT. “It will send you a text, a notification on your phone that will tell you Mr. Smith is PE positive,” Dr. Rivera-Lebron said. “Then you open it and you are able to scroll through the CT scan in your phone. So, it’s really remarkable.”
Clinical trials worth watching
Meanwhile, a number of clinical trials have started to enroll patients, or will soon, that Dr. Rivera-Lebron said are worth paying attention to.
PEITHO-3 is a randomized, placebo-controlled trial with long-term follow-up comparing the efficacy of a reduced-dose alteplase regimen or standard heparin anticoagulation in patients with intermediate to high-risk PE (Thromb Haemost. 2022;122:867-66).
PEERLESS is a prospective randomized trial comparing mechanical thrombectomy and CDT (ClinicalTrials.gov identifier NCT05111613).
PE-Thrombus Removal with Catheter-directed Therapy (PE-TRACT) is an open-label Phase 3 trial comparing anticoagulation and CDT that’s not yet recruiting (ClinicalTrials.gov identifier NCT05591118).
FlowTriever for Acute Massive Pulmonary Embolism (FLAME) is a prospective cohort study evaluating a clot-retrieving device in high-risk PE patients (ClinicalTrials.gov identifier NCT04795167).
When completed and published, these trials could provide PERTs more evidence for their decision-making.
Dr. Ardeshna and Dr. Tefera have no relevant relationships to disclose. Dr. Rivera-Lebron disclosed relationships with INARI Catheter and Johnson & Johnson. Dr. Kabrhel disclosed relationships with Bristol Myers Squibb and Pfizer.