The cardiac surgery is normally done to correct the congenital or valvular heart diseases. The congenital heart diseases are those in which heart have defects by born they can be overcome by cardiac surgery. The valvular heart diseases are those in which heart valves have blockage. They can be created by a number of causes including endocarditis. The cardiac surgery also includes the transplanting of hearts.

The cardiac or cardiovascular surgery has reduced the risk of death and they can be done using modern and specialized techniques to overcome the heart disease problems. The congenital heart disease surgery make possible to overcome the disease and around 2 to 5 percent of the death occurrence is observed which is really minute but still surgeons are practicing to reduce it to ideal condition or at zero percent. Other operations like bypasses are extremely achievable for the modern science.

There are many techniques of heart or cardiac surgery done by surgeons referring to the condition of patient. Among them "open heart surgery" is one, here "open" does not mean opening of heart but it is referred to chest. The heart may be opened depending upon the case of patient.

In present days, surgeons use the technique of robot assisted heart surgery. This is the most advance and triumph technique ever. A machine is used to do surgery and a human surgeon is maintaining the operation. The robots have smaller hands to put inside the patient preferred to a human surgeon who can be risky to put his hand inside.

The cardiac surgery in modern days is advanced and many researches further had been going on. This honored surgery has saved life of thousands and this is very dedicated for humanity.