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In the case of a cardiac emergency, surgical intervention may be required. Minimally invasive bypass-surgery offers an alternative to coronary artery bypass grafts, for patients who have only one or two blocked arteries. This operation uses a combination of small holes in the chest, and a small incision made directly over the coronary artery that needs to be bypassed. The result is more rapid healing of the chest incision with less pain and scarring. Heart valve replacement surgery also has become a common operation in hospitals. Valves that are seriously degenerated can be removed surgically and replaced with a new valve mechanism.

Coronary artery bypass surgery is used to reduce the symptoms of coronary artery disease and to prevent future heart attacks in patients who have major blockages in their coronary arteries. These blockages are the result of atherosclerosis, a condition which causes fatty deposits to build up in the arteries. Over time, as the coronary arteries continue to narrow, angina in the chest or a heart attack can result. Coronary artery bypass surgery uses vein grafts taken from a patient's leg, arm or inside the chest to create a detour so blood can go around the blockages in the coronary artery and reach the heart.