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Recognizing its importance as the site of the first successful heart valve surgery nearly a century ago, BWH strives to hold its international recognition as a leader in the development of groundbreaking innovations. Cardiac surgeries are complex procedures that are not without risk. The Division of Cardiac Surgery at BWH is committed to developing better surgical approaches that reduce risks, as well as patients’ pain and recovery time, without affecting care. With the worldwide rise in cardiovascular diseases, the need for cardiac surgery has never been higher and the division is committed to care for affected patients.

Our mission is to advance the field through the development of innovative surgical procedures, novel diagnostic tools, and groundbreaking therapies to not only reduce patient mortality but also improve post-surgical care. Fundamental, translational and clinical research are key to achieve these goals.


Research is an integral part of the Division of Cardiac Surgery based around a community of PhD and MD experts in various arenas from molecular and cellular biology to bioengineering. Faculty in the division are involved in close to 30 clinical trials, including major international and multicenter clinical trials, and numerous externally-funded research projects in collaboration with investigators within the Brigham community and beyond.

Current research efforts in the division focus on:

  • Thoracic aortic disease: studies of aortic aneurysm biology, biomechanics and clinical progression;
  • Surgical outcomes of cardiac procedures, including coronary artery bypass, valve repair/replacement and minimally invasive procedures;
  • Clinical trial evaluating new surgical techniques and new devices;
  • Correlative studies connecting pre-surgical patient status with outcomes of heart transplantation.


Thomas Gleason, MD
Chief of Cardiac Surgery
Co-Executive Director, Heart and Vascular Center

Sary Aranki, MD

Marie Billaud, PhD

Research Faculty

Jeremy Hearn, MS,
Technical Research Assistant

Nicholas Leung, BS,
Research Assistant

Siobhan McGurk, BS,
Senior Project Manager

Emma Pinjic, MD,
Research Manager

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