 Hello, I am Dr. Murli Krishna, Consultant Cardiac Surgeon at Manipal Hospital, Bangalore. Actually, it depends on the type of surgery the patient has already undergone. If the patient has undergone any cardiac surgical procedure before and any re-operation needs to be done on the right side of the heart, in only its selected cases, it can be done through a minimally invasive route. But again, as I said before, every individual patient needs to be worked up again pre-operatively to see whether it can be done through a minimally invasive approach. It varies from patient to patient.