I imagine you are referring to a Quintuple Bypass (Coronary Artery Bypass Graft - CABG). See this page: http://en.wikipedia.org/wiki/Coronary_artery_bypass_surgery
Coronary artery bypass graft surgery is a surgical procedure in which one or more blocked coronary arteries are bypassed by a blood vessel graft to restore normal blood flow to the heart.
Coronary artery bypass surgery is an operation in which a blood vessel (often a long vein surgically removed from the leg) is grafted onto the blocked artery to bypass the blocked portion.
One of the side affects of this weight loss surgery is that you wont get the self gratification that you would if you just did some work outs and lost the weight