Heart surgery refers to any type of surgical procedure that involves operating on the heart or its surrounding structures. This can include procedures such as coronary artery bypass grafting, valve replacement or repair, and treatment for congenital heart defects. The goal of these surgeries is to improve the function of the heart and alleviate symptoms related to certain conditions. Heart surgery is typically performed under general anesthesia and requires a hospital stay afterward. It can be a complex procedure with potential risks, but it can also provide significant benefits for patients who require treatment.