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Anticoagulation Hub contains news and clinical review articles for physicians seeking the most up-to-date information on the rapidly evolving treatment options for preventing stroke, acute coronary events, deep vein thrombosis, and pulmonary embolism in at-risk patients. The Anticoagulation Hub is powered by Frontline Medical Communications.
Oral anticoagulation ‘reasonable’ in advanced kidney disease with A-fib
BARCELONA – Oral anticoagulation had a net overall benefit for patients with atrial fibrillation and advanced chronic kidney disease, based on results of a large observational study reported at the annual congress of the European Society of Cardiology.
The novel direct-acting oral anticoagulants (NOACs) and warfarin were all similarly effective in this study of 39,241 patients who had stage 4 or 5 chronic kidney disease (CKD), atrial fibrillation, and were not on dialysis. Compared with no oral anticoagulation, the drugs cut in half the risk of stroke or systemic embolism, with no increased risk of major bleeding.
“In patients with advanced CKD, it appears that OACs [oral anticoagulants] are reasonable,” concluded Peter A. Noseworthy, MD, of the Mayo Clinic in Rochester, Minn.
This is a potentially practice-changing finding given the “striking underutilization” of OACs in advanced CKD, he noted. Indeed, only one-third of the patients in this study were prescribed an OAC and picked up their prescriptions. And while the study has the limitations inherent to an observational study reliant upon data from a large U.S. administrative database – chiefly, the potential for residual confounding because of factors that couldn’t be adjusted for statistically – these real-world data may be as good as it gets, since patients with advanced CKD were excluded from the pivotal trials of the NOACs.
Apixaban (Eliquis) was the winner in this study: It separated itself from the pack by reducing the major bleeding risk by 57%, compared with warfarin, although it wasn’t significantly more effective than the other drugs in terms of stroke prevention. In contrast, the major bleeding rates for dabigatran (Pradaxa) and rivaroxaban (Xarelto) weren’t significantly different from warfarin in this challenging patient population.
In a related analysis of 10,712 patients with atrial fibrillation and advanced CKD who were on dialysis, use of an OAC was once again a winning strategy: It resulted not only in an impressive 58% reduction in the risk of stroke or systemic embolism, but also a 26% reduction in the risk of major bleeding, compared with no OAC.
Here again, apixaban was arguably the drug of choice. None of the 125 dialysis patients on apixaban experienced a stroke or systemic embolism. In contrast, dabigatran and rivaroxaban were associated with greater than threefold higher stroke rates than in patients on warfarin, although these differences didn’t achieve statistical significance because of small numbers, just 36 patients on dabigatran and 56 on rivaroxaban, the cardiologist continued.
For these analyses of the relationship between OAC exposure and stroke and bleeding outcomes, Dr. Noseworthy and his coinvestigators used propensity scores based upon 59 clinical and sociodemographic characteristics.
Asked why rates of utilization of OACs are so low in patients with advanced CKD, Dr. Noseworthy replied that he didn’t find that particularly surprising.
“Even if you look only at patients without renal dysfunction, there is incredible undertreatment of atrial fibrillation with OACs. And adherence is very poor,” he observed.
Moreover, in talking with nephrologists, he finds many of them have legitimate reservations about prescribing OACs for patients with end-stage renal disease on hemodialysis.
“They’re undergoing a lot of procedures. They’re having a ton of lines placed; they’re having fistulas revised; and they have very high rates of GI bleeding. In some studies the annual risk of bleeding is 20%-40% in this population. And they’re a frail population with frequent falls,” Dr. Noseworthy said.
He reported having no financial conflicts of interest regarding his study, which was conducted free of commercial support.
BARCELONA – Oral anticoagulation had a net overall benefit for patients with atrial fibrillation and advanced chronic kidney disease, based on results of a large observational study reported at the annual congress of the European Society of Cardiology.
The novel direct-acting oral anticoagulants (NOACs) and warfarin were all similarly effective in this study of 39,241 patients who had stage 4 or 5 chronic kidney disease (CKD), atrial fibrillation, and were not on dialysis. Compared with no oral anticoagulation, the drugs cut in half the risk of stroke or systemic embolism, with no increased risk of major bleeding.
“In patients with advanced CKD, it appears that OACs [oral anticoagulants] are reasonable,” concluded Peter A. Noseworthy, MD, of the Mayo Clinic in Rochester, Minn.
This is a potentially practice-changing finding given the “striking underutilization” of OACs in advanced CKD, he noted. Indeed, only one-third of the patients in this study were prescribed an OAC and picked up their prescriptions. And while the study has the limitations inherent to an observational study reliant upon data from a large U.S. administrative database – chiefly, the potential for residual confounding because of factors that couldn’t be adjusted for statistically – these real-world data may be as good as it gets, since patients with advanced CKD were excluded from the pivotal trials of the NOACs.
Apixaban (Eliquis) was the winner in this study: It separated itself from the pack by reducing the major bleeding risk by 57%, compared with warfarin, although it wasn’t significantly more effective than the other drugs in terms of stroke prevention. In contrast, the major bleeding rates for dabigatran (Pradaxa) and rivaroxaban (Xarelto) weren’t significantly different from warfarin in this challenging patient population.
In a related analysis of 10,712 patients with atrial fibrillation and advanced CKD who were on dialysis, use of an OAC was once again a winning strategy: It resulted not only in an impressive 58% reduction in the risk of stroke or systemic embolism, but also a 26% reduction in the risk of major bleeding, compared with no OAC.
Here again, apixaban was arguably the drug of choice. None of the 125 dialysis patients on apixaban experienced a stroke or systemic embolism. In contrast, dabigatran and rivaroxaban were associated with greater than threefold higher stroke rates than in patients on warfarin, although these differences didn’t achieve statistical significance because of small numbers, just 36 patients on dabigatran and 56 on rivaroxaban, the cardiologist continued.
For these analyses of the relationship between OAC exposure and stroke and bleeding outcomes, Dr. Noseworthy and his coinvestigators used propensity scores based upon 59 clinical and sociodemographic characteristics.
Asked why rates of utilization of OACs are so low in patients with advanced CKD, Dr. Noseworthy replied that he didn’t find that particularly surprising.
“Even if you look only at patients without renal dysfunction, there is incredible undertreatment of atrial fibrillation with OACs. And adherence is very poor,” he observed.
Moreover, in talking with nephrologists, he finds many of them have legitimate reservations about prescribing OACs for patients with end-stage renal disease on hemodialysis.
“They’re undergoing a lot of procedures. They’re having a ton of lines placed; they’re having fistulas revised; and they have very high rates of GI bleeding. In some studies the annual risk of bleeding is 20%-40% in this population. And they’re a frail population with frequent falls,” Dr. Noseworthy said.
He reported having no financial conflicts of interest regarding his study, which was conducted free of commercial support.
BARCELONA – Oral anticoagulation had a net overall benefit for patients with atrial fibrillation and advanced chronic kidney disease, based on results of a large observational study reported at the annual congress of the European Society of Cardiology.
The novel direct-acting oral anticoagulants (NOACs) and warfarin were all similarly effective in this study of 39,241 patients who had stage 4 or 5 chronic kidney disease (CKD), atrial fibrillation, and were not on dialysis. Compared with no oral anticoagulation, the drugs cut in half the risk of stroke or systemic embolism, with no increased risk of major bleeding.
“In patients with advanced CKD, it appears that OACs [oral anticoagulants] are reasonable,” concluded Peter A. Noseworthy, MD, of the Mayo Clinic in Rochester, Minn.
This is a potentially practice-changing finding given the “striking underutilization” of OACs in advanced CKD, he noted. Indeed, only one-third of the patients in this study were prescribed an OAC and picked up their prescriptions. And while the study has the limitations inherent to an observational study reliant upon data from a large U.S. administrative database – chiefly, the potential for residual confounding because of factors that couldn’t be adjusted for statistically – these real-world data may be as good as it gets, since patients with advanced CKD were excluded from the pivotal trials of the NOACs.
Apixaban (Eliquis) was the winner in this study: It separated itself from the pack by reducing the major bleeding risk by 57%, compared with warfarin, although it wasn’t significantly more effective than the other drugs in terms of stroke prevention. In contrast, the major bleeding rates for dabigatran (Pradaxa) and rivaroxaban (Xarelto) weren’t significantly different from warfarin in this challenging patient population.
In a related analysis of 10,712 patients with atrial fibrillation and advanced CKD who were on dialysis, use of an OAC was once again a winning strategy: It resulted not only in an impressive 58% reduction in the risk of stroke or systemic embolism, but also a 26% reduction in the risk of major bleeding, compared with no OAC.
Here again, apixaban was arguably the drug of choice. None of the 125 dialysis patients on apixaban experienced a stroke or systemic embolism. In contrast, dabigatran and rivaroxaban were associated with greater than threefold higher stroke rates than in patients on warfarin, although these differences didn’t achieve statistical significance because of small numbers, just 36 patients on dabigatran and 56 on rivaroxaban, the cardiologist continued.
For these analyses of the relationship between OAC exposure and stroke and bleeding outcomes, Dr. Noseworthy and his coinvestigators used propensity scores based upon 59 clinical and sociodemographic characteristics.
Asked why rates of utilization of OACs are so low in patients with advanced CKD, Dr. Noseworthy replied that he didn’t find that particularly surprising.
“Even if you look only at patients without renal dysfunction, there is incredible undertreatment of atrial fibrillation with OACs. And adherence is very poor,” he observed.
Moreover, in talking with nephrologists, he finds many of them have legitimate reservations about prescribing OACs for patients with end-stage renal disease on hemodialysis.
“They’re undergoing a lot of procedures. They’re having a ton of lines placed; they’re having fistulas revised; and they have very high rates of GI bleeding. In some studies the annual risk of bleeding is 20%-40% in this population. And they’re a frail population with frequent falls,” Dr. Noseworthy said.
He reported having no financial conflicts of interest regarding his study, which was conducted free of commercial support.
AT THE ESC CONGRESS 2017
Key clinical point:
Major finding: The risk of stroke/systemic embolism in patients with advanced chronic kidney disease who were on oral anticoagulation was reduced by 49% among those not on hemodialysis and by 58% in those who were, compared with similar patients not on oral anticoagulation.
Data source: This was an observational study of nearly 50,000 patients with atrial fibrillation and stage 4 or 5 chronic kidney disease in a large U.S. administrative database.
Disclosures: The presenter reported having no financial conflicts of interest regarding his study, which was conducted free of commercial support.
VIDEO: Educational intervention boosts A fib anticoagulation
BARCELONA – A program promoting broader anticoagulation of patients with atrial fibrillation that used education and feedback from practice audits produced a substantial increase in sustained anticoagulant use and cut strokes in a multinational study with almost 2,300 patients in 48 practices.
Among atrial fibrillation (AF) patients who were not on an anticoagulant at baseline (34% of the enrolled group) 48% of patients in the intervention group began anticoagulant treatment and remained on it for a year with intervention compared with 18% of patients in the control arm without the intervention, Christopher B. Granger, MD, said at the annual congress of the European Society of Cardiology.
The intervention, which highlighted to health care providers the opportunity to start their AF patients on anticoagulant treatment, “transforms how care is provided to this population” of AF patients, Dr. Granger said in a video interview. “Doing something like this can have enormous public health implications.”
IMPACT AF (The Clinical Trial to Improve Treatment With Blood Thinners in Patients With Atrial Fibrillation) randomized 2,281 AF patients in 48 practices in five middle-income countries: Argentina, Brazil, China, India, and Romania. Randomization was by practice, and patients were assigned to either usual care or to an intervention that ran educational sessions for patients and providers on the benefits of and best practices for using anticoagulants. The intervention also monitored anticoagulant use by the patients in each practice and gave providers case-by-case feedback on the care patients received. The educational component customized the feedback to focus on overcoming treatment barriers specific for each patient. This audit and feedback process was a key part of the intervention, Dr. Granger said.
In an adjusted analysis, among patients not on an anticoagulant at baseline, the ones managed in practices that received the intervention had a greater than fourfold likelihood of receiving anticoagulant treatment, compared with patients in practices with no intervention. The intervention was especially successful in transitioning patients off of aspirin treatment, considered ineffective for AF stroke prevention, and onto an anticoagulant, most commonly warfarin.
Overall, anticoagulant use rose by 12 percentage points from baseline among patients in the intervention practices and by 3 percentage points over baseline among the control patients, a statistically significant difference for the study’s primary endpoint.
During 1-year follow-up, 11 strokes occurred among patients managed in practices that received the intervention and 21 in those in control practices, a 52% relative hazard reduction linked with the intervention that was statistically significant, Dr. Granger reported. Concurrently with his talk, the results also appeared online (Lancet. 2017. doi: 10.1016/S0140-6736[17]32165-7).
“How will we take what we have learned [in IMPACT AF] and have it available to people who want to replicate this?” asked Dr. Granger. “We have partnered with several national cardiology societies, and we are working with them to optimize the tools and provide the tools we’ve used,” he said. “We will develop a website for people who want to take this information and use it in their practices.” Dr. Granger and his associates also are working with the Food and Drug Administration and other groups to come up with interventions specially designed for U.S. practice.
IMPACT AF received partial funding from Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, and Pfizer. Dr. Granger has received honoraria and research funding from all of these companies, and also from Janssen and Medtronic.
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 @mitchelzoler
IMPACT AF is an important study, with impressive results that confirm the value of integrated atrial fibrillation care. In the study, a comprehensive and continuous educational intervention with 11 distinct components aimed at health care professionals and patients increased the initiation of and adherence to oral anticoagulation in patients with AF. This effect linked with a significantly reduced incidence of strokes.
Digital tools are an important part of the intervention. They provide both information and feedback, and they create a platform that can involve all stakeholders in management of atrial fibrillation. Informing AF patients about their treatment can result in patients who take responsibility for their management. Integrated AF management models can improve continued delivery of chronic care.
Paulus Kirchhof, MD , is a professor and deputy director of the Institute of Cardiovascular Sciences at the University of Birmingham, England. He has received honoraria and research funding from several drug companies. He made these comments as designated discussant for the report.
IMPACT AF is an important study, with impressive results that confirm the value of integrated atrial fibrillation care. In the study, a comprehensive and continuous educational intervention with 11 distinct components aimed at health care professionals and patients increased the initiation of and adherence to oral anticoagulation in patients with AF. This effect linked with a significantly reduced incidence of strokes.
Digital tools are an important part of the intervention. They provide both information and feedback, and they create a platform that can involve all stakeholders in management of atrial fibrillation. Informing AF patients about their treatment can result in patients who take responsibility for their management. Integrated AF management models can improve continued delivery of chronic care.
Paulus Kirchhof, MD , is a professor and deputy director of the Institute of Cardiovascular Sciences at the University of Birmingham, England. He has received honoraria and research funding from several drug companies. He made these comments as designated discussant for the report.
IMPACT AF is an important study, with impressive results that confirm the value of integrated atrial fibrillation care. In the study, a comprehensive and continuous educational intervention with 11 distinct components aimed at health care professionals and patients increased the initiation of and adherence to oral anticoagulation in patients with AF. This effect linked with a significantly reduced incidence of strokes.
Digital tools are an important part of the intervention. They provide both information and feedback, and they create a platform that can involve all stakeholders in management of atrial fibrillation. Informing AF patients about their treatment can result in patients who take responsibility for their management. Integrated AF management models can improve continued delivery of chronic care.
Paulus Kirchhof, MD , is a professor and deputy director of the Institute of Cardiovascular Sciences at the University of Birmingham, England. He has received honoraria and research funding from several drug companies. He made these comments as designated discussant for the report.
BARCELONA – A program promoting broader anticoagulation of patients with atrial fibrillation that used education and feedback from practice audits produced a substantial increase in sustained anticoagulant use and cut strokes in a multinational study with almost 2,300 patients in 48 practices.
Among atrial fibrillation (AF) patients who were not on an anticoagulant at baseline (34% of the enrolled group) 48% of patients in the intervention group began anticoagulant treatment and remained on it for a year with intervention compared with 18% of patients in the control arm without the intervention, Christopher B. Granger, MD, said at the annual congress of the European Society of Cardiology.
The intervention, which highlighted to health care providers the opportunity to start their AF patients on anticoagulant treatment, “transforms how care is provided to this population” of AF patients, Dr. Granger said in a video interview. “Doing something like this can have enormous public health implications.”
IMPACT AF (The Clinical Trial to Improve Treatment With Blood Thinners in Patients With Atrial Fibrillation) randomized 2,281 AF patients in 48 practices in five middle-income countries: Argentina, Brazil, China, India, and Romania. Randomization was by practice, and patients were assigned to either usual care or to an intervention that ran educational sessions for patients and providers on the benefits of and best practices for using anticoagulants. The intervention also monitored anticoagulant use by the patients in each practice and gave providers case-by-case feedback on the care patients received. The educational component customized the feedback to focus on overcoming treatment barriers specific for each patient. This audit and feedback process was a key part of the intervention, Dr. Granger said.
In an adjusted analysis, among patients not on an anticoagulant at baseline, the ones managed in practices that received the intervention had a greater than fourfold likelihood of receiving anticoagulant treatment, compared with patients in practices with no intervention. The intervention was especially successful in transitioning patients off of aspirin treatment, considered ineffective for AF stroke prevention, and onto an anticoagulant, most commonly warfarin.
Overall, anticoagulant use rose by 12 percentage points from baseline among patients in the intervention practices and by 3 percentage points over baseline among the control patients, a statistically significant difference for the study’s primary endpoint.
During 1-year follow-up, 11 strokes occurred among patients managed in practices that received the intervention and 21 in those in control practices, a 52% relative hazard reduction linked with the intervention that was statistically significant, Dr. Granger reported. Concurrently with his talk, the results also appeared online (Lancet. 2017. doi: 10.1016/S0140-6736[17]32165-7).
“How will we take what we have learned [in IMPACT AF] and have it available to people who want to replicate this?” asked Dr. Granger. “We have partnered with several national cardiology societies, and we are working with them to optimize the tools and provide the tools we’ve used,” he said. “We will develop a website for people who want to take this information and use it in their practices.” Dr. Granger and his associates also are working with the Food and Drug Administration and other groups to come up with interventions specially designed for U.S. practice.
IMPACT AF received partial funding from Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, and Pfizer. Dr. Granger has received honoraria and research funding from all of these companies, and also from Janssen and Medtronic.
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 @mitchelzoler
BARCELONA – A program promoting broader anticoagulation of patients with atrial fibrillation that used education and feedback from practice audits produced a substantial increase in sustained anticoagulant use and cut strokes in a multinational study with almost 2,300 patients in 48 practices.
Among atrial fibrillation (AF) patients who were not on an anticoagulant at baseline (34% of the enrolled group) 48% of patients in the intervention group began anticoagulant treatment and remained on it for a year with intervention compared with 18% of patients in the control arm without the intervention, Christopher B. Granger, MD, said at the annual congress of the European Society of Cardiology.
The intervention, which highlighted to health care providers the opportunity to start their AF patients on anticoagulant treatment, “transforms how care is provided to this population” of AF patients, Dr. Granger said in a video interview. “Doing something like this can have enormous public health implications.”
IMPACT AF (The Clinical Trial to Improve Treatment With Blood Thinners in Patients With Atrial Fibrillation) randomized 2,281 AF patients in 48 practices in five middle-income countries: Argentina, Brazil, China, India, and Romania. Randomization was by practice, and patients were assigned to either usual care or to an intervention that ran educational sessions for patients and providers on the benefits of and best practices for using anticoagulants. The intervention also monitored anticoagulant use by the patients in each practice and gave providers case-by-case feedback on the care patients received. The educational component customized the feedback to focus on overcoming treatment barriers specific for each patient. This audit and feedback process was a key part of the intervention, Dr. Granger said.
In an adjusted analysis, among patients not on an anticoagulant at baseline, the ones managed in practices that received the intervention had a greater than fourfold likelihood of receiving anticoagulant treatment, compared with patients in practices with no intervention. The intervention was especially successful in transitioning patients off of aspirin treatment, considered ineffective for AF stroke prevention, and onto an anticoagulant, most commonly warfarin.
Overall, anticoagulant use rose by 12 percentage points from baseline among patients in the intervention practices and by 3 percentage points over baseline among the control patients, a statistically significant difference for the study’s primary endpoint.
During 1-year follow-up, 11 strokes occurred among patients managed in practices that received the intervention and 21 in those in control practices, a 52% relative hazard reduction linked with the intervention that was statistically significant, Dr. Granger reported. Concurrently with his talk, the results also appeared online (Lancet. 2017. doi: 10.1016/S0140-6736[17]32165-7).
“How will we take what we have learned [in IMPACT AF] and have it available to people who want to replicate this?” asked Dr. Granger. “We have partnered with several national cardiology societies, and we are working with them to optimize the tools and provide the tools we’ve used,” he said. “We will develop a website for people who want to take this information and use it in their practices.” Dr. Granger and his associates also are working with the Food and Drug Administration and other groups to come up with interventions specially designed for U.S. practice.
IMPACT AF received partial funding from Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, and Pfizer. Dr. Granger has received honoraria and research funding from all of these companies, and also from Janssen and Medtronic.
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 @mitchelzoler
AT THE ESC CONGRESS 2017
Key clinical point:
Major finding: Anticoagulation rose by 12 percentage points from baseline with intervention and by 3 percentage points among controls.
Data source: IMPACT AF, which randomized 2,281 AF patients for 1 year at 48 centers in five middle-income countries.
Disclosures: IMPACT AF received partial funding from Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Daiichi Sankyo, and Pfizer. Dr. Granger has received honoraria and research funding from all of these companies, and also from Janssen and Medtronic.
Patent foramen ovale closure reduces risk of stroke in three trials
Three separate trials examining the impact of closing a patent foramen ovale on the risk of stroke all point to endovascular closure offering a greater reduction in risk than with anticoagulant or antiplatelet therapy alone.
However, this benefit may be evident only in patients at higher risk of stroke associated with patent foramen ovale (PFO), and comes at the cost of an increased risk of atrial fibrillation and procedure-related adverse events, according to papers published in the Sept. 14 issue of the New England Journal of Medicine.
Closure plus anticoagulation vs. anticoagulation or antiplatelets alone
In the CLOSE trial, 663 patients aged 16-60 years who had experienced a recent stroke attributed to PFO and who had an associated atrial septal aneurysm or large interatrial shunt were randomized to transcatheter closure plus long-term antiplatelet therapy, antiplatelets alone, or oral anticoagulation alone.
After a mean follow-up of 5.3 years, Jean‑Louis Mas, MD, of Sainte-Anne Hospital, Paris, and his colleagues reported that there were no recurrent strokes in the closure group, but 14 of the 235 patients in the antiplatelets-only group experienced a stroke, representing a 97% reduction in the risk of stroke with endovascular closure (P less than .001). Patients in the antiplatelets-only group had a 4.9% overall probability of stroke, and no explanation other than PFO could be found for their recurrent stroke (N Engl J Med. 2017;377:1011-21), reported .
The study was not adequately powered to compare the outcomes of anticoagulant therapy with antiplatelet therapy alone.
The closure group also had a 61% lower risk of the secondary composite outcome of stroke, transient ischemic attack, or systemic embolism, compared with the antiplatelet-only group (P = .01).
However, closure of the PFO was associated with a higher rate of new-onset atrial fibrillation or flutter than antiplatelet therapy alone (4.6% vs. 0.9%, P = .02), and major procedural complications occurred in 5.9% of patients.
Closure plus antiplatelets vs. antiplatelets alone
In the second study – REDUCE – 664 patients with PFO who had experienced an ischemic stroke with no other obvious cause were randomized either to closure plus antiplatelet therapy or antiplatelet therapy alone (N Engl J Med. 2017;377:1033-42).
Over the median follow-up of 3.2 years, there were ischemic strokes in 1.4% of patients in the closure group, compared with 5.4% in the antiplatelet-only group; this was a 77% reduction in risk (P = .002), Lars Søndergaard, MD, of the University of Copenhagen, and his coauthors reported.
The closure group also had a 49% lower incidence of new brain infarctions, compared with the antiplatelet-only group, although the incidence of silent brain infarction was similar between the two groups.
While the risks of major bleeding, deep-vein thrombosis, and pulmonary embolism and serious adverse events were similar between the two groups, the closure group had a 2.5% rate of procedure-related serious adverse events and 1.4% rate of device-related serious adverse events. The closure group also had a significantly higher incidence of atrial fibrillation when compared with the control group (6.6% vs. 0.4%; P less than .001).
Closure vs. medical therapy alone
Finally, in the third paper, Jeffrey L. Saver, MD, of the University of California, Los Angeles, and his associates reported the long-term outcomes of the RESPECT trial of PFO closure versus medical therapy alone in 980 patients with PFO who had experienced a cryptogenic ischemic stroke (N Engl J Med. 2017; 377:1022-32).
After a median follow-up of 5.9 years, there was a 45% lower risk of recurrent ischemic stroke in the closure group, compared with the medical therapy alone group. The overall incidence of recurrent ischemic stroke was 0.58 events per 100 patient-years after closure, compared against 1.07 events with medical therapy, which included aspirin, warfarin, clopidogrel, or aspirin combined with extended-release dipyridamole.
However, the rate of pulmonary embolism was more than threefold higher, and the rate of deep vein thrombosis was more than fourfold higher in the closure group, compared with the medical therapy group, although the latter was not statistically significant.
FDA perspective
In an accompanying perspective on the three studies, Andrew Farb, MD, and his colleagues from the Center for Devices and Radiological Health at the Food and Drug Administration noted that the clinical benefit of closing a PFO has been an ongoing question for several decades, but the data on the Amplatzer PFO Occluder – a device for PFO closure – had met the agency’s approval threshold.
“The FDA concluded that although there were few recurrent strokes in both groups and some uncertainty regarding the reduction in stroke risk attributable to the device, preventing recurrent stroke is of high value,” the authors wrote (N Engl J Med. 2017;377:1006-9).
However, they stressed that because of the high prevalence of PFO, patients being considered for surgical closure should undergo comprehensive clinical assessment by a neurologist and cardiologist to ensure the ischemic stroke did not have any other possible cause.
The CLOSE trial was supported by the French Ministry of Health. Fourteen authors reported funding, grants, consultancies, and other support from the pharmaceutical industry. The REDUCE trial was supported by W.L. Gore and Associates, and 11 authors declared grants or fees from W.L. Gore and Associates. The RESPECT trial was supported by St. Jude Medical. Eight authors declared grants, fees, or nonfinancial support from St. Jude Medical. One also declared grants and fees from the pharmaceutical industry. The authors of the accompanying perspective had no conflicts of interest to declare.
The evidence for causation of embolic stroke in any given person is, of course, circumstantial (for example, atrial fibrillation or carotid stenosis), and it seems reasonable that the presence of a PFO and a sizable interatrial shunt should similarly no longer result in the categorization of a stroke as cryptogenic.
One conclusion from previous trials of closure of patent foramen ovale is that the potential benefit from closure is determined on the basis of the positive characteristics of the PFO rather than on the basis of exclusionary factors that make a stroke cryptogenic. Restricting PFO closure entirely to patients with high-risk characteristics of the PFO may perhaps be too conservative, but the boundaries of the features that support the procedure are becoming clearer.
Dr. Allan H. Ropper is deputy editor of the New England Journal of Medicine. These comments are taken from an accompanying editorial (N Engl J Med. 2017; 377:1093-5). He had no conflicts of interest to declare.
The evidence for causation of embolic stroke in any given person is, of course, circumstantial (for example, atrial fibrillation or carotid stenosis), and it seems reasonable that the presence of a PFO and a sizable interatrial shunt should similarly no longer result in the categorization of a stroke as cryptogenic.
One conclusion from previous trials of closure of patent foramen ovale is that the potential benefit from closure is determined on the basis of the positive characteristics of the PFO rather than on the basis of exclusionary factors that make a stroke cryptogenic. Restricting PFO closure entirely to patients with high-risk characteristics of the PFO may perhaps be too conservative, but the boundaries of the features that support the procedure are becoming clearer.
Dr. Allan H. Ropper is deputy editor of the New England Journal of Medicine. These comments are taken from an accompanying editorial (N Engl J Med. 2017; 377:1093-5). He had no conflicts of interest to declare.
The evidence for causation of embolic stroke in any given person is, of course, circumstantial (for example, atrial fibrillation or carotid stenosis), and it seems reasonable that the presence of a PFO and a sizable interatrial shunt should similarly no longer result in the categorization of a stroke as cryptogenic.
One conclusion from previous trials of closure of patent foramen ovale is that the potential benefit from closure is determined on the basis of the positive characteristics of the PFO rather than on the basis of exclusionary factors that make a stroke cryptogenic. Restricting PFO closure entirely to patients with high-risk characteristics of the PFO may perhaps be too conservative, but the boundaries of the features that support the procedure are becoming clearer.
Dr. Allan H. Ropper is deputy editor of the New England Journal of Medicine. These comments are taken from an accompanying editorial (N Engl J Med. 2017; 377:1093-5). He had no conflicts of interest to declare.
Three separate trials examining the impact of closing a patent foramen ovale on the risk of stroke all point to endovascular closure offering a greater reduction in risk than with anticoagulant or antiplatelet therapy alone.
However, this benefit may be evident only in patients at higher risk of stroke associated with patent foramen ovale (PFO), and comes at the cost of an increased risk of atrial fibrillation and procedure-related adverse events, according to papers published in the Sept. 14 issue of the New England Journal of Medicine.
Closure plus anticoagulation vs. anticoagulation or antiplatelets alone
In the CLOSE trial, 663 patients aged 16-60 years who had experienced a recent stroke attributed to PFO and who had an associated atrial septal aneurysm or large interatrial shunt were randomized to transcatheter closure plus long-term antiplatelet therapy, antiplatelets alone, or oral anticoagulation alone.
After a mean follow-up of 5.3 years, Jean‑Louis Mas, MD, of Sainte-Anne Hospital, Paris, and his colleagues reported that there were no recurrent strokes in the closure group, but 14 of the 235 patients in the antiplatelets-only group experienced a stroke, representing a 97% reduction in the risk of stroke with endovascular closure (P less than .001). Patients in the antiplatelets-only group had a 4.9% overall probability of stroke, and no explanation other than PFO could be found for their recurrent stroke (N Engl J Med. 2017;377:1011-21), reported .
The study was not adequately powered to compare the outcomes of anticoagulant therapy with antiplatelet therapy alone.
The closure group also had a 61% lower risk of the secondary composite outcome of stroke, transient ischemic attack, or systemic embolism, compared with the antiplatelet-only group (P = .01).
However, closure of the PFO was associated with a higher rate of new-onset atrial fibrillation or flutter than antiplatelet therapy alone (4.6% vs. 0.9%, P = .02), and major procedural complications occurred in 5.9% of patients.
Closure plus antiplatelets vs. antiplatelets alone
In the second study – REDUCE – 664 patients with PFO who had experienced an ischemic stroke with no other obvious cause were randomized either to closure plus antiplatelet therapy or antiplatelet therapy alone (N Engl J Med. 2017;377:1033-42).
Over the median follow-up of 3.2 years, there were ischemic strokes in 1.4% of patients in the closure group, compared with 5.4% in the antiplatelet-only group; this was a 77% reduction in risk (P = .002), Lars Søndergaard, MD, of the University of Copenhagen, and his coauthors reported.
The closure group also had a 49% lower incidence of new brain infarctions, compared with the antiplatelet-only group, although the incidence of silent brain infarction was similar between the two groups.
While the risks of major bleeding, deep-vein thrombosis, and pulmonary embolism and serious adverse events were similar between the two groups, the closure group had a 2.5% rate of procedure-related serious adverse events and 1.4% rate of device-related serious adverse events. The closure group also had a significantly higher incidence of atrial fibrillation when compared with the control group (6.6% vs. 0.4%; P less than .001).
Closure vs. medical therapy alone
Finally, in the third paper, Jeffrey L. Saver, MD, of the University of California, Los Angeles, and his associates reported the long-term outcomes of the RESPECT trial of PFO closure versus medical therapy alone in 980 patients with PFO who had experienced a cryptogenic ischemic stroke (N Engl J Med. 2017; 377:1022-32).
After a median follow-up of 5.9 years, there was a 45% lower risk of recurrent ischemic stroke in the closure group, compared with the medical therapy alone group. The overall incidence of recurrent ischemic stroke was 0.58 events per 100 patient-years after closure, compared against 1.07 events with medical therapy, which included aspirin, warfarin, clopidogrel, or aspirin combined with extended-release dipyridamole.
However, the rate of pulmonary embolism was more than threefold higher, and the rate of deep vein thrombosis was more than fourfold higher in the closure group, compared with the medical therapy group, although the latter was not statistically significant.
FDA perspective
In an accompanying perspective on the three studies, Andrew Farb, MD, and his colleagues from the Center for Devices and Radiological Health at the Food and Drug Administration noted that the clinical benefit of closing a PFO has been an ongoing question for several decades, but the data on the Amplatzer PFO Occluder – a device for PFO closure – had met the agency’s approval threshold.
“The FDA concluded that although there were few recurrent strokes in both groups and some uncertainty regarding the reduction in stroke risk attributable to the device, preventing recurrent stroke is of high value,” the authors wrote (N Engl J Med. 2017;377:1006-9).
However, they stressed that because of the high prevalence of PFO, patients being considered for surgical closure should undergo comprehensive clinical assessment by a neurologist and cardiologist to ensure the ischemic stroke did not have any other possible cause.
The CLOSE trial was supported by the French Ministry of Health. Fourteen authors reported funding, grants, consultancies, and other support from the pharmaceutical industry. The REDUCE trial was supported by W.L. Gore and Associates, and 11 authors declared grants or fees from W.L. Gore and Associates. The RESPECT trial was supported by St. Jude Medical. Eight authors declared grants, fees, or nonfinancial support from St. Jude Medical. One also declared grants and fees from the pharmaceutical industry. The authors of the accompanying perspective had no conflicts of interest to declare.
Three separate trials examining the impact of closing a patent foramen ovale on the risk of stroke all point to endovascular closure offering a greater reduction in risk than with anticoagulant or antiplatelet therapy alone.
However, this benefit may be evident only in patients at higher risk of stroke associated with patent foramen ovale (PFO), and comes at the cost of an increased risk of atrial fibrillation and procedure-related adverse events, according to papers published in the Sept. 14 issue of the New England Journal of Medicine.
Closure plus anticoagulation vs. anticoagulation or antiplatelets alone
In the CLOSE trial, 663 patients aged 16-60 years who had experienced a recent stroke attributed to PFO and who had an associated atrial septal aneurysm or large interatrial shunt were randomized to transcatheter closure plus long-term antiplatelet therapy, antiplatelets alone, or oral anticoagulation alone.
After a mean follow-up of 5.3 years, Jean‑Louis Mas, MD, of Sainte-Anne Hospital, Paris, and his colleagues reported that there were no recurrent strokes in the closure group, but 14 of the 235 patients in the antiplatelets-only group experienced a stroke, representing a 97% reduction in the risk of stroke with endovascular closure (P less than .001). Patients in the antiplatelets-only group had a 4.9% overall probability of stroke, and no explanation other than PFO could be found for their recurrent stroke (N Engl J Med. 2017;377:1011-21), reported .
The study was not adequately powered to compare the outcomes of anticoagulant therapy with antiplatelet therapy alone.
The closure group also had a 61% lower risk of the secondary composite outcome of stroke, transient ischemic attack, or systemic embolism, compared with the antiplatelet-only group (P = .01).
However, closure of the PFO was associated with a higher rate of new-onset atrial fibrillation or flutter than antiplatelet therapy alone (4.6% vs. 0.9%, P = .02), and major procedural complications occurred in 5.9% of patients.
Closure plus antiplatelets vs. antiplatelets alone
In the second study – REDUCE – 664 patients with PFO who had experienced an ischemic stroke with no other obvious cause were randomized either to closure plus antiplatelet therapy or antiplatelet therapy alone (N Engl J Med. 2017;377:1033-42).
Over the median follow-up of 3.2 years, there were ischemic strokes in 1.4% of patients in the closure group, compared with 5.4% in the antiplatelet-only group; this was a 77% reduction in risk (P = .002), Lars Søndergaard, MD, of the University of Copenhagen, and his coauthors reported.
The closure group also had a 49% lower incidence of new brain infarctions, compared with the antiplatelet-only group, although the incidence of silent brain infarction was similar between the two groups.
While the risks of major bleeding, deep-vein thrombosis, and pulmonary embolism and serious adverse events were similar between the two groups, the closure group had a 2.5% rate of procedure-related serious adverse events and 1.4% rate of device-related serious adverse events. The closure group also had a significantly higher incidence of atrial fibrillation when compared with the control group (6.6% vs. 0.4%; P less than .001).
Closure vs. medical therapy alone
Finally, in the third paper, Jeffrey L. Saver, MD, of the University of California, Los Angeles, and his associates reported the long-term outcomes of the RESPECT trial of PFO closure versus medical therapy alone in 980 patients with PFO who had experienced a cryptogenic ischemic stroke (N Engl J Med. 2017; 377:1022-32).
After a median follow-up of 5.9 years, there was a 45% lower risk of recurrent ischemic stroke in the closure group, compared with the medical therapy alone group. The overall incidence of recurrent ischemic stroke was 0.58 events per 100 patient-years after closure, compared against 1.07 events with medical therapy, which included aspirin, warfarin, clopidogrel, or aspirin combined with extended-release dipyridamole.
However, the rate of pulmonary embolism was more than threefold higher, and the rate of deep vein thrombosis was more than fourfold higher in the closure group, compared with the medical therapy group, although the latter was not statistically significant.
FDA perspective
In an accompanying perspective on the three studies, Andrew Farb, MD, and his colleagues from the Center for Devices and Radiological Health at the Food and Drug Administration noted that the clinical benefit of closing a PFO has been an ongoing question for several decades, but the data on the Amplatzer PFO Occluder – a device for PFO closure – had met the agency’s approval threshold.
“The FDA concluded that although there were few recurrent strokes in both groups and some uncertainty regarding the reduction in stroke risk attributable to the device, preventing recurrent stroke is of high value,” the authors wrote (N Engl J Med. 2017;377:1006-9).
However, they stressed that because of the high prevalence of PFO, patients being considered for surgical closure should undergo comprehensive clinical assessment by a neurologist and cardiologist to ensure the ischemic stroke did not have any other possible cause.
The CLOSE trial was supported by the French Ministry of Health. Fourteen authors reported funding, grants, consultancies, and other support from the pharmaceutical industry. The REDUCE trial was supported by W.L. Gore and Associates, and 11 authors declared grants or fees from W.L. Gore and Associates. The RESPECT trial was supported by St. Jude Medical. Eight authors declared grants, fees, or nonfinancial support from St. Jude Medical. One also declared grants and fees from the pharmaceutical industry. The authors of the accompanying perspective had no conflicts of interest to declare.
FROM NEW ENGLAND JOURNAL OF MEDICINE
Key clinical point:
Major finding: Patent foramen ovale closure was associated with a 45%-97% reduction in the incidence of recurrent ischemic stroke, compared with treatment with antiplatelets or anticoagulants alone.
Data source: The CLOSE, REDUCE, and RESPECT randomized, controlled trials in patients with patent foramen ovale who had experienced a cryptogenic ischemic stroke.
Disclosures: The CLOSE trial was supported by the French Ministry of Health. Fourteen authors reported funding, grants, consultancies and other support from the pharmaceutical industry. The REDUCE trial was supported by W.L. Gore and Associates, and 11 authors declared grants or fees from W.L. Gore and Associates. The RESPECT trial was supported by St. Jude Medical. Eight authors declared grants, fees, or nonfinancial support from St. Jude Medical. One also declared grants and fees from the pharmaceutical industry.
No increased overall cardiovascular risk seen with exenatide use
“We did not observe any specific safety issues during our trial; there was no adverse signal with respect to heart failure, despite the higher mean heart rate in the exenatide group than in the placebo group, and events of acute pancreatitis and pancreatic cancer were rare, with similar rates in the two groups,” according to researchers led by Rury R. Holman, F.Med.Sci. Their study was published online Sept. 14 in the New England Journal of Medicine, and was presented at the annual meeting of the European Association for the Study of Diabetes.
For the trial, which was funded by Amylin Pharmaceuticals and known as the Exenatide Study of Cardiovascular Event Lowering (EXSCEL), the researchers randomly assigned 14,752 patients with type 2 diabetes at 687 sites in 35 countries to receive subcutaneous injections of extended-released exenatide at a dose of 2 mg, or matching placebo once per week, from June 18, 2010, through Sept. 16, 2015. The patients were followed for a median of 3.2 years and the main outcome of interest was the first occurrence of death from cardiovascular causes, nonfatal myocardial infarction, or stroke.
Dr. Holman, professor of diabetic medicine at Oxford (England) University and director of the University of Oxford Diabetes Trials Unit of the Oxford Center for Diabetes, England, and his associates reported that 10,782 of the 14,752 patients (73.1%) had previous cardiovascular disease. A primary composite outcome event occurred in 11.4% of patients in the exenatide group, compared with 12.2% of those in the placebo group, which translated into a hazard ratio of 0.91.
In the meantime, the intention-to-treat analysis revealed that exenatide was noninferior to placebo with respect to safety (P less than .001) but was not superior to placebo with respect to safety (P = .06). The researchers observed no significant differences between the two groups in the rates of death from cardiovascular causes, fatal or nonfatal MI, or stroke, hospitalization for heart failure or for acute coronary syndrome, or in the incidence of cute pancreatitis, pancreatic cancer, medullary thyroid carcinoma, and serious adverse events.
“The pragmatic design of the trial included integration with usual care and wide-ranging eligibility criteria,” the researchers wrote. “For example, patients with any degree of cardiovascular risk who were at least 18 years of age (with no upper age limit) were eligible. To further augment the potential generalizability of any findings, we evaluated the cardiovascular effect of once-weekly extended-release exenatide in the usual-care setting by maintaining the focus of management of diabetes and cardiovascular risk with the usual-care provider.”
The researchers acknowledged certain limitations of the study, including the rate of premature discontinuation of the trial regimen, “which was driven by patient decision. We speculate that probable factors for discontinuation were the complexity of the first-generation injection device that was used and the fact that our trial had no run-in period.”
The trial was conducted jointly by the Duke Clinical Research Institute and the University of Oxford Diabetes Trial Unit, in collaboration with Amylin Pharmaceuticals. Dr. Holman and his coauthors reported having numerous financial ties to the pharmaceutical industry.
PRIMARY SOURCE: N Engl J Med 2017 Sept. 14. doi: 10.1056/NEJMoa1612917
“We did not observe any specific safety issues during our trial; there was no adverse signal with respect to heart failure, despite the higher mean heart rate in the exenatide group than in the placebo group, and events of acute pancreatitis and pancreatic cancer were rare, with similar rates in the two groups,” according to researchers led by Rury R. Holman, F.Med.Sci. Their study was published online Sept. 14 in the New England Journal of Medicine, and was presented at the annual meeting of the European Association for the Study of Diabetes.
For the trial, which was funded by Amylin Pharmaceuticals and known as the Exenatide Study of Cardiovascular Event Lowering (EXSCEL), the researchers randomly assigned 14,752 patients with type 2 diabetes at 687 sites in 35 countries to receive subcutaneous injections of extended-released exenatide at a dose of 2 mg, or matching placebo once per week, from June 18, 2010, through Sept. 16, 2015. The patients were followed for a median of 3.2 years and the main outcome of interest was the first occurrence of death from cardiovascular causes, nonfatal myocardial infarction, or stroke.
Dr. Holman, professor of diabetic medicine at Oxford (England) University and director of the University of Oxford Diabetes Trials Unit of the Oxford Center for Diabetes, England, and his associates reported that 10,782 of the 14,752 patients (73.1%) had previous cardiovascular disease. A primary composite outcome event occurred in 11.4% of patients in the exenatide group, compared with 12.2% of those in the placebo group, which translated into a hazard ratio of 0.91.
In the meantime, the intention-to-treat analysis revealed that exenatide was noninferior to placebo with respect to safety (P less than .001) but was not superior to placebo with respect to safety (P = .06). The researchers observed no significant differences between the two groups in the rates of death from cardiovascular causes, fatal or nonfatal MI, or stroke, hospitalization for heart failure or for acute coronary syndrome, or in the incidence of cute pancreatitis, pancreatic cancer, medullary thyroid carcinoma, and serious adverse events.
“The pragmatic design of the trial included integration with usual care and wide-ranging eligibility criteria,” the researchers wrote. “For example, patients with any degree of cardiovascular risk who were at least 18 years of age (with no upper age limit) were eligible. To further augment the potential generalizability of any findings, we evaluated the cardiovascular effect of once-weekly extended-release exenatide in the usual-care setting by maintaining the focus of management of diabetes and cardiovascular risk with the usual-care provider.”
The researchers acknowledged certain limitations of the study, including the rate of premature discontinuation of the trial regimen, “which was driven by patient decision. We speculate that probable factors for discontinuation were the complexity of the first-generation injection device that was used and the fact that our trial had no run-in period.”
The trial was conducted jointly by the Duke Clinical Research Institute and the University of Oxford Diabetes Trial Unit, in collaboration with Amylin Pharmaceuticals. Dr. Holman and his coauthors reported having numerous financial ties to the pharmaceutical industry.
PRIMARY SOURCE: N Engl J Med 2017 Sept. 14. doi: 10.1056/NEJMoa1612917
“We did not observe any specific safety issues during our trial; there was no adverse signal with respect to heart failure, despite the higher mean heart rate in the exenatide group than in the placebo group, and events of acute pancreatitis and pancreatic cancer were rare, with similar rates in the two groups,” according to researchers led by Rury R. Holman, F.Med.Sci. Their study was published online Sept. 14 in the New England Journal of Medicine, and was presented at the annual meeting of the European Association for the Study of Diabetes.
For the trial, which was funded by Amylin Pharmaceuticals and known as the Exenatide Study of Cardiovascular Event Lowering (EXSCEL), the researchers randomly assigned 14,752 patients with type 2 diabetes at 687 sites in 35 countries to receive subcutaneous injections of extended-released exenatide at a dose of 2 mg, or matching placebo once per week, from June 18, 2010, through Sept. 16, 2015. The patients were followed for a median of 3.2 years and the main outcome of interest was the first occurrence of death from cardiovascular causes, nonfatal myocardial infarction, or stroke.
Dr. Holman, professor of diabetic medicine at Oxford (England) University and director of the University of Oxford Diabetes Trials Unit of the Oxford Center for Diabetes, England, and his associates reported that 10,782 of the 14,752 patients (73.1%) had previous cardiovascular disease. A primary composite outcome event occurred in 11.4% of patients in the exenatide group, compared with 12.2% of those in the placebo group, which translated into a hazard ratio of 0.91.
In the meantime, the intention-to-treat analysis revealed that exenatide was noninferior to placebo with respect to safety (P less than .001) but was not superior to placebo with respect to safety (P = .06). The researchers observed no significant differences between the two groups in the rates of death from cardiovascular causes, fatal or nonfatal MI, or stroke, hospitalization for heart failure or for acute coronary syndrome, or in the incidence of cute pancreatitis, pancreatic cancer, medullary thyroid carcinoma, and serious adverse events.
“The pragmatic design of the trial included integration with usual care and wide-ranging eligibility criteria,” the researchers wrote. “For example, patients with any degree of cardiovascular risk who were at least 18 years of age (with no upper age limit) were eligible. To further augment the potential generalizability of any findings, we evaluated the cardiovascular effect of once-weekly extended-release exenatide in the usual-care setting by maintaining the focus of management of diabetes and cardiovascular risk with the usual-care provider.”
The researchers acknowledged certain limitations of the study, including the rate of premature discontinuation of the trial regimen, “which was driven by patient decision. We speculate that probable factors for discontinuation were the complexity of the first-generation injection device that was used and the fact that our trial had no run-in period.”
The trial was conducted jointly by the Duke Clinical Research Institute and the University of Oxford Diabetes Trial Unit, in collaboration with Amylin Pharmaceuticals. Dr. Holman and his coauthors reported having numerous financial ties to the pharmaceutical industry.
PRIMARY SOURCE: N Engl J Med 2017 Sept. 14. doi: 10.1056/NEJMoa1612917
FROM EASD 2017
Key clinical point: Exenatide was noninferior to placebo with respect to cardiovascular safety but was not superior with respect to efficacy.
Major finding: Among patients with type 2 diabetes with and without previous cardiovascular disease, once-weekly administration of exenatide does not appear to cause an increase in their overall cardiovascular risk.
Study details: A randomized, placebo-controlled trial of 14,752 diabetic patients with or without previous cardiovascular disease.
Disclosures: The trial was conducted jointly by the Duke Clinical Research Institute and the University of Oxford Diabetes Trial Unit, in collaboration with Amylin Pharmaceuticals. Dr. Holman and his coauthors reported having numerous financial ties to the pharmaceutical industry.
Source: Rury R. Holman, et al. Effects of once-weekly exenatide on cardiovascular outcomes in type 2 diabetes. N Engl J Med 2017 Sept 14. doi: 10.1056/NEJMoa1612917.
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Recent upturn seen in stroke death rate
A recent increase in the death rate from stroke resulted in more than 32,000 more deaths than would have occurred had the previous long-term decline continued, according to the Centers for Disease Control and Prevention.
The overall age-standardized stroke death rate among adults aged 35 years and older declined from 118.4 per 100,000 in 2000 to 73.3 per 100,000 in 2015, for an average annual percent change of –3.1%. That long-term rate, however, includes a more recent, but statistically nonsignificant, increase of 2.5% a year in 2013-2015, which produced an estimated 32,593 excess deaths based on the previous rate of decline, the CDC investigators said (MMWR 2017 Sep 6;66[early release]:1-7).
“Reasons for the slowing, stalling, and reversing in declines in stroke death rates are not clear. … Recent studies have reported that younger adults have experienced a significant increase in both stroke hospitalizations and in associated stroke risk factors (e.g., hypertension, obesity, diabetes, lipid disorder, and tobacco use). … These changes in modifiable stroke risk factors might present new challenges for stroke prevention and for maintaining a sustained decline in stroke mortality in the United States,” the investigators wrote.
A recent increase in the death rate from stroke resulted in more than 32,000 more deaths than would have occurred had the previous long-term decline continued, according to the Centers for Disease Control and Prevention.
The overall age-standardized stroke death rate among adults aged 35 years and older declined from 118.4 per 100,000 in 2000 to 73.3 per 100,000 in 2015, for an average annual percent change of –3.1%. That long-term rate, however, includes a more recent, but statistically nonsignificant, increase of 2.5% a year in 2013-2015, which produced an estimated 32,593 excess deaths based on the previous rate of decline, the CDC investigators said (MMWR 2017 Sep 6;66[early release]:1-7).
“Reasons for the slowing, stalling, and reversing in declines in stroke death rates are not clear. … Recent studies have reported that younger adults have experienced a significant increase in both stroke hospitalizations and in associated stroke risk factors (e.g., hypertension, obesity, diabetes, lipid disorder, and tobacco use). … These changes in modifiable stroke risk factors might present new challenges for stroke prevention and for maintaining a sustained decline in stroke mortality in the United States,” the investigators wrote.
A recent increase in the death rate from stroke resulted in more than 32,000 more deaths than would have occurred had the previous long-term decline continued, according to the Centers for Disease Control and Prevention.
The overall age-standardized stroke death rate among adults aged 35 years and older declined from 118.4 per 100,000 in 2000 to 73.3 per 100,000 in 2015, for an average annual percent change of –3.1%. That long-term rate, however, includes a more recent, but statistically nonsignificant, increase of 2.5% a year in 2013-2015, which produced an estimated 32,593 excess deaths based on the previous rate of decline, the CDC investigators said (MMWR 2017 Sep 6;66[early release]:1-7).
“Reasons for the slowing, stalling, and reversing in declines in stroke death rates are not clear. … Recent studies have reported that younger adults have experienced a significant increase in both stroke hospitalizations and in associated stroke risk factors (e.g., hypertension, obesity, diabetes, lipid disorder, and tobacco use). … These changes in modifiable stroke risk factors might present new challenges for stroke prevention and for maintaining a sustained decline in stroke mortality in the United States,” the investigators wrote.
FROM MMWR
Undiagnosed AF common in higher-risk patients
Over an 18-month period, small, insertable cardiac monitors detected atrial fibrillation in 29% of previously undiagnosed patients who were at high risk of both AF and stroke, and in 40% of patients over 30 months, according to investigators. The study was presented at the annual congress of the European Society of Cardiology and simultaneously published in JAMA Cardiology.
More than half (56%) of patients consequently started oral anticoagulation therapy, noted James A. Reiffel, MD, of Columbia University College of Physicians and Surgeons, New York, with his associates, for the REVEAL AF investigators.
“The incidence of previously undiagnosed atrial fibrillation may be substantial in patients with risk factors for AF and stroke,” they concluded. “Atrial fibrillation would have gone undetected in most patients had monitoring been limited to 30 days. Further trials regarding the value of detecting subclinical AF and of prophylactic therapies are warranted.”
Atrial fibrillation affects millions worldwide and is associated with older age, hypertension, diabetes, and heart failure, all of which also independently increase the risk of stroke. Minimally invasive prolonged electrocardiographic monitoring with insertable cardiac monitors might help hasten detection and treatment of AF, but diagnostic yield in high-risk patients has been unclear.
In this single-arm, multicenter, prospective study, researchers inserted Reveal XT or Reveal LINQ (Medtronic) cardiac monitors in 385 adults who had either CHAD2 scores of 3, or CHAD2 scores of 2 and one additional risk factor for AF, such as coronary artery disease, sleep apnea, chronic obstructive pulmonary disease, or renal insufficiency. The primary endpoint was AF lasting at least 6 minutes (JAMA Cardiol. 2017 Aug 26. doi: 10.1001/jamacardio.2017.3180). Median follow-up time was 22.5 months. Rates of detecting AF were 6% at 30 days compared with 20% at 6 months, 27% at 12 months, 34% at 24 months, and 40% at 30 months. Patients typically had their first AF episode about 4 months (median, 123 days) after the device was inserted. Among patients who had experienced AF by 18 months, 10% had one or more episodes lasting at least 24 hours, and 72 (56%) were prescribed oral anticoagulation therapy.
The recent PREDATE AF and ASSERT-II studies also found that previously undiagnosed AF was common among high-risk patients, the researchers noted. However, whether anticoagulating patients who have only brief episodes of AF significantly reduces their risk of stroke remains unclear, they added. Three trials (ARTESiA, NOAH, and LOOP) are underway to assess whether oral anticoagulation therapy improves outcomes in patients with device-detected AF.
Medtronic funded the study. Dr. Reiffel and five coinvestigators disclosed consulting for and receiving “modest honoraria” from Medtronic. Two other coinvestigators reported employment with and stock ownership in Medtronic.
The availability of safe and effective oral anticoagulant therapy makes the findings of REVEAL AF highly relevant. This high rate of incident AF makes ICM-based screenings of high-risk individuals a potentially attractive stroke prevention strategy. More detailed subgroup analyses may help identify a patient population with an even higher risk of developing AF. It is also conceivable that this population could have a sufficiently high risk of AF and stroke that a strategy of empiric oral anticoagulation, without the need for AF monitoring, could prove beneficial.
However; both intervention studies and economic evaluations are needed before either strategy should be routinely adopted.
The REVEAL AF study has shown that AF is extremely common among older individuals with stroke risk factors. Over the next 3-4 years, subgroup analyses, economic evaluations, and randomized clinical trials will help determine if this insight can be translated into a cost-effective stroke prevention strategy for high-risk individuals.
Jeff S. Healey, MD, MSc, is at the Population Health Research Institute, McMaster University, Hamilton, Ont. He is the principal investigator of the ASSERT-II and ARTESiA trials, and had no other relevant disclosures. These comments are from his editorial (JAMA Cardiol. 2017 Aug 26. doi: 10.1001/jamacardio.2017.3203).
The availability of safe and effective oral anticoagulant therapy makes the findings of REVEAL AF highly relevant. This high rate of incident AF makes ICM-based screenings of high-risk individuals a potentially attractive stroke prevention strategy. More detailed subgroup analyses may help identify a patient population with an even higher risk of developing AF. It is also conceivable that this population could have a sufficiently high risk of AF and stroke that a strategy of empiric oral anticoagulation, without the need for AF monitoring, could prove beneficial.
However; both intervention studies and economic evaluations are needed before either strategy should be routinely adopted.
The REVEAL AF study has shown that AF is extremely common among older individuals with stroke risk factors. Over the next 3-4 years, subgroup analyses, economic evaluations, and randomized clinical trials will help determine if this insight can be translated into a cost-effective stroke prevention strategy for high-risk individuals.
Jeff S. Healey, MD, MSc, is at the Population Health Research Institute, McMaster University, Hamilton, Ont. He is the principal investigator of the ASSERT-II and ARTESiA trials, and had no other relevant disclosures. These comments are from his editorial (JAMA Cardiol. 2017 Aug 26. doi: 10.1001/jamacardio.2017.3203).
The availability of safe and effective oral anticoagulant therapy makes the findings of REVEAL AF highly relevant. This high rate of incident AF makes ICM-based screenings of high-risk individuals a potentially attractive stroke prevention strategy. More detailed subgroup analyses may help identify a patient population with an even higher risk of developing AF. It is also conceivable that this population could have a sufficiently high risk of AF and stroke that a strategy of empiric oral anticoagulation, without the need for AF monitoring, could prove beneficial.
However; both intervention studies and economic evaluations are needed before either strategy should be routinely adopted.
The REVEAL AF study has shown that AF is extremely common among older individuals with stroke risk factors. Over the next 3-4 years, subgroup analyses, economic evaluations, and randomized clinical trials will help determine if this insight can be translated into a cost-effective stroke prevention strategy for high-risk individuals.
Jeff S. Healey, MD, MSc, is at the Population Health Research Institute, McMaster University, Hamilton, Ont. He is the principal investigator of the ASSERT-II and ARTESiA trials, and had no other relevant disclosures. These comments are from his editorial (JAMA Cardiol. 2017 Aug 26. doi: 10.1001/jamacardio.2017.3203).
Over an 18-month period, small, insertable cardiac monitors detected atrial fibrillation in 29% of previously undiagnosed patients who were at high risk of both AF and stroke, and in 40% of patients over 30 months, according to investigators. The study was presented at the annual congress of the European Society of Cardiology and simultaneously published in JAMA Cardiology.
More than half (56%) of patients consequently started oral anticoagulation therapy, noted James A. Reiffel, MD, of Columbia University College of Physicians and Surgeons, New York, with his associates, for the REVEAL AF investigators.
“The incidence of previously undiagnosed atrial fibrillation may be substantial in patients with risk factors for AF and stroke,” they concluded. “Atrial fibrillation would have gone undetected in most patients had monitoring been limited to 30 days. Further trials regarding the value of detecting subclinical AF and of prophylactic therapies are warranted.”
Atrial fibrillation affects millions worldwide and is associated with older age, hypertension, diabetes, and heart failure, all of which also independently increase the risk of stroke. Minimally invasive prolonged electrocardiographic monitoring with insertable cardiac monitors might help hasten detection and treatment of AF, but diagnostic yield in high-risk patients has been unclear.
In this single-arm, multicenter, prospective study, researchers inserted Reveal XT or Reveal LINQ (Medtronic) cardiac monitors in 385 adults who had either CHAD2 scores of 3, or CHAD2 scores of 2 and one additional risk factor for AF, such as coronary artery disease, sleep apnea, chronic obstructive pulmonary disease, or renal insufficiency. The primary endpoint was AF lasting at least 6 minutes (JAMA Cardiol. 2017 Aug 26. doi: 10.1001/jamacardio.2017.3180). Median follow-up time was 22.5 months. Rates of detecting AF were 6% at 30 days compared with 20% at 6 months, 27% at 12 months, 34% at 24 months, and 40% at 30 months. Patients typically had their first AF episode about 4 months (median, 123 days) after the device was inserted. Among patients who had experienced AF by 18 months, 10% had one or more episodes lasting at least 24 hours, and 72 (56%) were prescribed oral anticoagulation therapy.
The recent PREDATE AF and ASSERT-II studies also found that previously undiagnosed AF was common among high-risk patients, the researchers noted. However, whether anticoagulating patients who have only brief episodes of AF significantly reduces their risk of stroke remains unclear, they added. Three trials (ARTESiA, NOAH, and LOOP) are underway to assess whether oral anticoagulation therapy improves outcomes in patients with device-detected AF.
Medtronic funded the study. Dr. Reiffel and five coinvestigators disclosed consulting for and receiving “modest honoraria” from Medtronic. Two other coinvestigators reported employment with and stock ownership in Medtronic.
Over an 18-month period, small, insertable cardiac monitors detected atrial fibrillation in 29% of previously undiagnosed patients who were at high risk of both AF and stroke, and in 40% of patients over 30 months, according to investigators. The study was presented at the annual congress of the European Society of Cardiology and simultaneously published in JAMA Cardiology.
More than half (56%) of patients consequently started oral anticoagulation therapy, noted James A. Reiffel, MD, of Columbia University College of Physicians and Surgeons, New York, with his associates, for the REVEAL AF investigators.
“The incidence of previously undiagnosed atrial fibrillation may be substantial in patients with risk factors for AF and stroke,” they concluded. “Atrial fibrillation would have gone undetected in most patients had monitoring been limited to 30 days. Further trials regarding the value of detecting subclinical AF and of prophylactic therapies are warranted.”
Atrial fibrillation affects millions worldwide and is associated with older age, hypertension, diabetes, and heart failure, all of which also independently increase the risk of stroke. Minimally invasive prolonged electrocardiographic monitoring with insertable cardiac monitors might help hasten detection and treatment of AF, but diagnostic yield in high-risk patients has been unclear.
In this single-arm, multicenter, prospective study, researchers inserted Reveal XT or Reveal LINQ (Medtronic) cardiac monitors in 385 adults who had either CHAD2 scores of 3, or CHAD2 scores of 2 and one additional risk factor for AF, such as coronary artery disease, sleep apnea, chronic obstructive pulmonary disease, or renal insufficiency. The primary endpoint was AF lasting at least 6 minutes (JAMA Cardiol. 2017 Aug 26. doi: 10.1001/jamacardio.2017.3180). Median follow-up time was 22.5 months. Rates of detecting AF were 6% at 30 days compared with 20% at 6 months, 27% at 12 months, 34% at 24 months, and 40% at 30 months. Patients typically had their first AF episode about 4 months (median, 123 days) after the device was inserted. Among patients who had experienced AF by 18 months, 10% had one or more episodes lasting at least 24 hours, and 72 (56%) were prescribed oral anticoagulation therapy.
The recent PREDATE AF and ASSERT-II studies also found that previously undiagnosed AF was common among high-risk patients, the researchers noted. However, whether anticoagulating patients who have only brief episodes of AF significantly reduces their risk of stroke remains unclear, they added. Three trials (ARTESiA, NOAH, and LOOP) are underway to assess whether oral anticoagulation therapy improves outcomes in patients with device-detected AF.
Medtronic funded the study. Dr. Reiffel and five coinvestigators disclosed consulting for and receiving “modest honoraria” from Medtronic. Two other coinvestigators reported employment with and stock ownership in Medtronic.
FROM THE ESC CONGRESS 2017
Key clinical point: Undiagnosed atrial fibrillation is common in high-risk patients.
Major finding: At 18 months, 29% of previously undiagnosed, high-risk patients had experienced atrial fibrillation lasting 6 or more minutes.
Data source: A single-arm, prospective, multicenter study of 446 patients with a CHADS2 score of at least 3, or a CHADS2 score of at least 2 plus at least one other risk factor (coronary artery disease, sleep apnea, chronic obstructive pulmonary disease, or renal insufficiency).
Disclosures: Medtronic funded the study. Dr. Reiffel and five coinvestigators disclosed consulting for and receiving “modest honoraria” from Medtronic. Two other coinvestigators reported employment with and stock ownership in Medtronic.
New findings from first all-female TAVR registry
Paris – A history of pregnancy did not protect against adverse outcomes at 1 year in the Women’s International Transcatheter Aortic Valve Implantation Registry (WIN-TAVI), even though it did within the first 30 days, Alaide Chieffo, MD, reported at the annual congress of the European Association of Percutaneous Cardiovascular Interventions.
One year ago, at EuroPCR 2016, she reported that in WIN-TAVI, a history of pregnancy – albeit typically more than half a century previously – was independently associated with a 43% reduction in the Valve Academic Research Consortium-2 (VARC-2) 30-day composite endpoint, including death, stroke, major vascular complications, life-threatening bleeding, stage 2 or 3 acute kidney injury, coronary artery obstruction, or repeat transcatheter aortic valve replacement (TAVR) done because of valve-related dysfunction. Those early findings, first reported in this publication, were later published (JACC Cardiovasc Interv. 2016 Aug 8;9[15]:1589-600).
At 1 year of follow-up, however, the rate of the VARC-2 composite endpoint was no longer significantly different in women with or without a history of pregnancy. Nor was a history of pregnancy associated with a significantly reduced risk of the secondary endpoint of death or stroke: The 27% reduction in risk of this secondary endpoint in women with a history of pregnancy, compared with that of nulliparous women, didn’t achieve statistical significance in multivariate analysis, according to Dr. Chieffo of the San Raffaele Scientific Institute in Milan.
She speculated that pregnancy earlier in life provided strong protection against poor 30-day outcomes and a similar trend – albeit not statistically significant – at 1 year because women without children may have less family support.
“They are old women, left alone, without the family taking care of them. This is socially important, I think, because we are investing quite a lot of money in a procedure, and then maybe we’re adding adverse events because these patients are not properly taken care of when they are out of the hospital,” the interventional cardiologist said.
Neither of the other two female-specific characteristics evaluated in WIN-TAVI – having a history of osteoporosis or age at menopause – turned out to be related to the risk of bad outcomes at 1 year, she added.
WIN-TAVI is the first all-female registry of patients undergoing TAVR for severe aortic stenosis. The prospective, observational registry includes 1,019 women treated at 19 highly experienced European and North American TAVR centers. They averaged 82.5 years of age with a mean Society of Thoracic Surgeons score of 8.3%, putting them at intermediate or high surgical risk. A percutaneous transfemoral approach was used in 91% of cases. TAVR was performed under conscious sedation in 28% of the women and under local anesthesia in another 37%. Of the women in the registry, 42% received a newer-generation device.
In addition to the lack of significant impact of prior pregnancy on 1-year outcomes, another noteworthy finding at 1 year of follow-up was that preprocedural atrial fibrillation was independently associated with a 58% increase in the risk of death or stroke (P = .02). Prior percutaneous coronary intervention and EuroSCORE (European System for Cardiac Operative Risk Evaluation) were the only other independent predictors.
This observation suggests the need for a women-only randomized trial of TAVR versus surgical aortic valve replacement in women with intermediate surgical risk, Dr. Chieffo suggested. It will be important to learn whether the ability to surgically ablate preoperative atrial fibrillation in women during surgical valve replacement results in a lower 1-year risk of death or stroke than is achieved with TAVR.
Overall, the 1-year clinical outcomes seen in WIN-TAVI are “very good,” she noted. The VARC-2 composite endpoint occurred in 16.5% of women, all-cause mortality in 12.5%, cardiovascular mortality in 10.8%, and stroke in 2.2%. Only 3.2% of women were hospitalized for heart failure or valve-related symptoms. A new pacemaker was implanted in 12.7% of participants. At baseline 74% of women were New York Heart Association functional class III or IV; at 1 year, only 8.1% were. Moderate paravalvular aortic regurgitation was present in 6% of patients at 6 months and in 9.7% at 1 year
The WIN-TAVI registry is entirely self-funded. Dr. Chieffo reported having no financial conflicts regarding her presentation.
Paris – A history of pregnancy did not protect against adverse outcomes at 1 year in the Women’s International Transcatheter Aortic Valve Implantation Registry (WIN-TAVI), even though it did within the first 30 days, Alaide Chieffo, MD, reported at the annual congress of the European Association of Percutaneous Cardiovascular Interventions.
One year ago, at EuroPCR 2016, she reported that in WIN-TAVI, a history of pregnancy – albeit typically more than half a century previously – was independently associated with a 43% reduction in the Valve Academic Research Consortium-2 (VARC-2) 30-day composite endpoint, including death, stroke, major vascular complications, life-threatening bleeding, stage 2 or 3 acute kidney injury, coronary artery obstruction, or repeat transcatheter aortic valve replacement (TAVR) done because of valve-related dysfunction. Those early findings, first reported in this publication, were later published (JACC Cardiovasc Interv. 2016 Aug 8;9[15]:1589-600).
At 1 year of follow-up, however, the rate of the VARC-2 composite endpoint was no longer significantly different in women with or without a history of pregnancy. Nor was a history of pregnancy associated with a significantly reduced risk of the secondary endpoint of death or stroke: The 27% reduction in risk of this secondary endpoint in women with a history of pregnancy, compared with that of nulliparous women, didn’t achieve statistical significance in multivariate analysis, according to Dr. Chieffo of the San Raffaele Scientific Institute in Milan.
She speculated that pregnancy earlier in life provided strong protection against poor 30-day outcomes and a similar trend – albeit not statistically significant – at 1 year because women without children may have less family support.
“They are old women, left alone, without the family taking care of them. This is socially important, I think, because we are investing quite a lot of money in a procedure, and then maybe we’re adding adverse events because these patients are not properly taken care of when they are out of the hospital,” the interventional cardiologist said.
Neither of the other two female-specific characteristics evaluated in WIN-TAVI – having a history of osteoporosis or age at menopause – turned out to be related to the risk of bad outcomes at 1 year, she added.
WIN-TAVI is the first all-female registry of patients undergoing TAVR for severe aortic stenosis. The prospective, observational registry includes 1,019 women treated at 19 highly experienced European and North American TAVR centers. They averaged 82.5 years of age with a mean Society of Thoracic Surgeons score of 8.3%, putting them at intermediate or high surgical risk. A percutaneous transfemoral approach was used in 91% of cases. TAVR was performed under conscious sedation in 28% of the women and under local anesthesia in another 37%. Of the women in the registry, 42% received a newer-generation device.
In addition to the lack of significant impact of prior pregnancy on 1-year outcomes, another noteworthy finding at 1 year of follow-up was that preprocedural atrial fibrillation was independently associated with a 58% increase in the risk of death or stroke (P = .02). Prior percutaneous coronary intervention and EuroSCORE (European System for Cardiac Operative Risk Evaluation) were the only other independent predictors.
This observation suggests the need for a women-only randomized trial of TAVR versus surgical aortic valve replacement in women with intermediate surgical risk, Dr. Chieffo suggested. It will be important to learn whether the ability to surgically ablate preoperative atrial fibrillation in women during surgical valve replacement results in a lower 1-year risk of death or stroke than is achieved with TAVR.
Overall, the 1-year clinical outcomes seen in WIN-TAVI are “very good,” she noted. The VARC-2 composite endpoint occurred in 16.5% of women, all-cause mortality in 12.5%, cardiovascular mortality in 10.8%, and stroke in 2.2%. Only 3.2% of women were hospitalized for heart failure or valve-related symptoms. A new pacemaker was implanted in 12.7% of participants. At baseline 74% of women were New York Heart Association functional class III or IV; at 1 year, only 8.1% were. Moderate paravalvular aortic regurgitation was present in 6% of patients at 6 months and in 9.7% at 1 year
The WIN-TAVI registry is entirely self-funded. Dr. Chieffo reported having no financial conflicts regarding her presentation.
Paris – A history of pregnancy did not protect against adverse outcomes at 1 year in the Women’s International Transcatheter Aortic Valve Implantation Registry (WIN-TAVI), even though it did within the first 30 days, Alaide Chieffo, MD, reported at the annual congress of the European Association of Percutaneous Cardiovascular Interventions.
One year ago, at EuroPCR 2016, she reported that in WIN-TAVI, a history of pregnancy – albeit typically more than half a century previously – was independently associated with a 43% reduction in the Valve Academic Research Consortium-2 (VARC-2) 30-day composite endpoint, including death, stroke, major vascular complications, life-threatening bleeding, stage 2 or 3 acute kidney injury, coronary artery obstruction, or repeat transcatheter aortic valve replacement (TAVR) done because of valve-related dysfunction. Those early findings, first reported in this publication, were later published (JACC Cardiovasc Interv. 2016 Aug 8;9[15]:1589-600).
At 1 year of follow-up, however, the rate of the VARC-2 composite endpoint was no longer significantly different in women with or without a history of pregnancy. Nor was a history of pregnancy associated with a significantly reduced risk of the secondary endpoint of death or stroke: The 27% reduction in risk of this secondary endpoint in women with a history of pregnancy, compared with that of nulliparous women, didn’t achieve statistical significance in multivariate analysis, according to Dr. Chieffo of the San Raffaele Scientific Institute in Milan.
She speculated that pregnancy earlier in life provided strong protection against poor 30-day outcomes and a similar trend – albeit not statistically significant – at 1 year because women without children may have less family support.
“They are old women, left alone, without the family taking care of them. This is socially important, I think, because we are investing quite a lot of money in a procedure, and then maybe we’re adding adverse events because these patients are not properly taken care of when they are out of the hospital,” the interventional cardiologist said.
Neither of the other two female-specific characteristics evaluated in WIN-TAVI – having a history of osteoporosis or age at menopause – turned out to be related to the risk of bad outcomes at 1 year, she added.
WIN-TAVI is the first all-female registry of patients undergoing TAVR for severe aortic stenosis. The prospective, observational registry includes 1,019 women treated at 19 highly experienced European and North American TAVR centers. They averaged 82.5 years of age with a mean Society of Thoracic Surgeons score of 8.3%, putting them at intermediate or high surgical risk. A percutaneous transfemoral approach was used in 91% of cases. TAVR was performed under conscious sedation in 28% of the women and under local anesthesia in another 37%. Of the women in the registry, 42% received a newer-generation device.
In addition to the lack of significant impact of prior pregnancy on 1-year outcomes, another noteworthy finding at 1 year of follow-up was that preprocedural atrial fibrillation was independently associated with a 58% increase in the risk of death or stroke (P = .02). Prior percutaneous coronary intervention and EuroSCORE (European System for Cardiac Operative Risk Evaluation) were the only other independent predictors.
This observation suggests the need for a women-only randomized trial of TAVR versus surgical aortic valve replacement in women with intermediate surgical risk, Dr. Chieffo suggested. It will be important to learn whether the ability to surgically ablate preoperative atrial fibrillation in women during surgical valve replacement results in a lower 1-year risk of death or stroke than is achieved with TAVR.
Overall, the 1-year clinical outcomes seen in WIN-TAVI are “very good,” she noted. The VARC-2 composite endpoint occurred in 16.5% of women, all-cause mortality in 12.5%, cardiovascular mortality in 10.8%, and stroke in 2.2%. Only 3.2% of women were hospitalized for heart failure or valve-related symptoms. A new pacemaker was implanted in 12.7% of participants. At baseline 74% of women were New York Heart Association functional class III or IV; at 1 year, only 8.1% were. Moderate paravalvular aortic regurgitation was present in 6% of patients at 6 months and in 9.7% at 1 year
The WIN-TAVI registry is entirely self-funded. Dr. Chieffo reported having no financial conflicts regarding her presentation.
AT EuroPCR
Key clinical point:
Major finding: Prior pregnancy didn’t protect women against death or stroke at 1 year post TAVR.
Data source: WIN-TAVI, a prospective, multicenter, observational registry includes 1,019 women who underwent TAVR.
Disclosures: WIN-TAVI is entirely self-funded. The presenter reported having no financial conflicts.