Dr. Bruce Lerman

Dr. Jonathan Weinsaft, an esteemed physician-scientist who focuses on clinical research and cardiovascular imaging, has been appointed chief of the Greenberg Division of Cardiology at Weill Cornell Medicine and NewYork-Presbyterian/Weill Cornell Medical Center, effective July 1.

Atrial fibrillation is a condition that affects as many as 6.1 million Americans and is characterized by an irregular, often rapid heart rate caused by a misfiring of electrical impulses.