Cardio Vascular Surgeon
Dr. Ratan Kumar Das is a distinguished Cardio-Vascular & Cardiothoracic Surgeon based in Kolkata with over three decades of surgical experience. Known for pioneering and performing complex cardiac procedures in Eastern India, he leads the cardiothoracic surgery department at BM Birla Heart Research Centre. His clinical work covers adult and pediatric cardiac surgery, minimally invasive heart surgery, and advanced bypass and valve repair techniques. Dr. Das has trained internationally—including a fellowship at St. George Hospital in Sydney—and has a track record of innovations such as the first successful Double Switch procedure and minimally invasive mitral valve replacement in the region.