A heart valve surgery is performed when at least one of your four heart valves, namely mitral valve, tricuspid valve, pulmonary valve, and aortic valve stop working properly. In a heart valve surgery procedure, you’ll first be given an anaesthesia. Then you’ll be connected to a heart-lung bypass machine which helps keep the blood pumping blood throughout the procedure. It can be performed using both open-heart surgery or a minimally invasive surgery. A minimally-invasive surgery uses long instruments and lesser incisions whereas an open surgery will involve cutting your chest open through your breastbone. During the procedure, your doctor may also recommend heart valve repair as this helps in preserving the heart function.