More Versus Better: Learning From the Medtronic Valiant Navion Recall.

Thumbnail Image



Journal Title

Journal ISSN

Volume Title

Repository Usage Stats


Citation Stats

Attention Stats






Published Version (Please cite this version)


Publication Info

Weissler, E Hope, Matthew Roe, Bradley G Hammill and G Chad Hughes (2022). More Versus Better: Learning From the Medtronic Valiant Navion Recall. Circulation. Cardiovascular interventions, 15(7). p. e011776. 10.1161/circinterventions.122.011776 Retrieved from

This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.



E. Hope Weissler

House Staff

Matthew Todd Roe

Adjunct Professor in the Department of Medicine

My clinical activities focus upon general, preventive, and acute care cardiology.  I round regularly on the inpatient general cardiology and coronary care unit (CCU) services and i have a particular interest in the treatment and management of patients with acute myocardial infarction and cardiogenic shock.  In my outpatient clinic, I care for patients with a variety of cardiovascular conditions include chronic coronary artery disease, hypertension, hyperlipidemia, atrial fibrillation, congestive heart failure, aortic aneurysms, and peripheral arterial disease.  In this setting, I have a particular interest in cardiovascular risk factor modification and long-term treatment strategies to mitigate the risk of future cardiovascular events.

My research activities at the Duke Clinical Research Institute focus upon the coordination and leadership of randomized clinical trials evaluating new therapies for a variety of cardiovascular conditions (acute myocardial infarction, hyperlipidemia, coronary stent placement, peripheral arterial disease, and coronary artery disease) as well as observational registries that evaluate the same disease conditions.


Bradley Gordon Hammill

Associate Professor in Population Health Sciences

Brad Hammill, DrPH, is an Associate Professor in the Department of Population Health Sciences within the School of Medicine and a member of the Duke Clinical Research Institute. Dr. Hammill received his DrPH in Biostatistics from The University of North Carolina at Chapel Hill. His research is focused on leveraging real-world data—including electronic health record data, health insurance claims data, and registry data—for clinical research.

Areas of expertise: Biostatistics, Real-World Data, Health Services Research, Health Policy, and Epidemiology

Unless otherwise indicated, scholarly articles published by Duke faculty members are made available here with a CC-BY-NC (Creative Commons Attribution Non-Commercial) license, as enabled by the Duke Open Access Policy. If you wish to use the materials in ways not already permitted under CC-BY-NC, please consult the copyright owner. Other materials are made available here through the author’s grant of a non-exclusive license to make their work openly accessible.