Dr. Sujay Shad, the best heart surgery doctor in India, is a senior consultant in heart surgery and director of heart transplants at Sir Ganga Ram Hospital in Delhi. Heart valve surgery is done when the two main types of heart valve disease develop and one or more heart valves aren't functioning optimally. Stenosis is an obstruction that prevents blood flow. As a result, the heart will have to work harder to pump blood across the narrowing. Regurgitation is a valve that leaks and is insufficient, and hence, the blood moves backward. Symptoms include chest pain, palpitations, fatigue, dizziness, irregular heartbeat, and nervousness. If these symptoms are neglected, they can be life-threatening. If one is experiencing such symptoms, consult Dr. Sujay Shad immediately at Sir Ganga Ram Hospital.