Our Safe Care Commitment

At Brigham Health, the health and safety of our patients, families and staff is our top priority. We know that COVID-19 will be with us for the foreseeable future, so we're taking a comprehensive approach to provide you and your family the safest possible environment. Read our Safe Care Commitment.

Our Heart & Vascular Center team can consult with you in person or through Virtual Visits to help you stay connected to your care and on track with your treatment. Learn more about Brigham Health Heart and Vascular Center Virtual Visits and see how our cardiac care never stops.

John F. Keaney, Jr., MD

John Francis Keaney, Jr., MD

Dr. Keaney is Chief of the Division of Cardiovascular Medicine in the Department of Medicine at Brigham and Women's Hospital and Executive Director of the Brigham Health Heart and Vascular Center.

Dr. Keaney received his medical degree from Yale University School of Medicine and trained in both Internal Medicine and Cardiovascular Medicine at Brigham and Women's Hospital. Dr. Keaney is board certified in both internal medicine and cardiovascular medicine. Before returning to Brigham and Women's Hospital, Dr. Keaney was Chief of Cardiovascular Medicine at the University of Massachusetts Medical School.  Dr. Keaney's clinical interests are in the treatment of acute coronary syndromes and valvular heart disease.

Dr. Keaney has authored over 230 publications is a recognized expert in the biology of blood vessels and is currently Associate Editor for the New England Journal of Medicine. Dr. Keaney is a frequent consultant to the National Institutes of Health in matters related to vascular health.

Dr. Gleason was a permanent member (2014-2019) of the Bioengineering, Technology, and Surgical Sciences (BTSS) Study Section for the Center for Scientific Review at the National Institutes of Health, and he currently serves on the editorial board of Circulation.

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Prem S. Shekar, MD

Prem S. Shekar, MD

Dr. Shekar is the interim Chief of Cardiac Surgery. He received his medical degree from Bangalore Medical College and Research Institute in India. He completed two residencies in India: one in surgery at Command Hospital Airforce and the other in cardiothoracic surgery at Jawaharlal Institute of Postgraduate Medical Education and Research. Dr. Shekar then completed cardiothoracic surgery residency programs at Fremantle Hospital and Royal Adelaide Hospital, both in Australia. He also completed a cardiac surgery fellowship at BWH.  He is also a fellow of the Royal College of Surgeons of Edinburgh.

Dr. Shekar specializes entire spectrum of adult cardiac surgery, including primary and coronary artery bypass grafting, repair or replacement for valvular heart disease, as well as resection and replacement of aneurysms. Dr. Shekar's clinical interests include surgical treatment of hypertrophic cardiomyopathy, surgical correction of aortic root and mitral valve pathologies in patients with Marfan's and Loeys-Dietz syndrome and other connective tissue disorders; minimally invasive valve surgery, surgery for adult congenital heart disease and radiation-induced heart disease.

Dr. Shekar's research investigates clinical outcomes. He was the principal investigator in the CIMIT-funded Hybrid Cardiovascular Operating Room project and the site principal investigator for the HeartMate II Pivotal trial, which studied a novel ventricular assist device as a permanent therapy for patients with advanced heart disease who are not candidates for transplantation. He has authored over 65 peer-reviewed publications

Since becoming a BWH faculty member in 2004, Dr. Shekar has held several leadership roles, including interim surgical director of the Integrated Cardiovascular Services Program and surgical director of the BWH Patient Progression Initiative.

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Featured Programs and Leadership

Heart Rhythm Disorders Program

Structural Heart Disease Program

Center for Advanced Heart Failure/ Cardiomyopathy Team

To see a list of our full cardiac care teams below:

Request an Appointment

We are steadfast in our commitment to treating you in the safest possible environment and are seeing patients both in person and through Virtual Visits. To request an appointment, please call 857-307-6048 Monday - Friday, 8am-5pm ET or complete the form to receive a callback.


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