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Can Your Arteries Get Blocked After Bypass Surgery
Dec 2018
Dr Bipeenchandra Bhamre
Reliance Foundation Hospital And Research Centre

We all need to understand that just because an individual has a bypass surgery and he/she feels better, it doesn’t mean the coronary artery disease is cured. A patient still has to get the coronary artery disease treated and everything possible has to done to protect the new bypass grafts. After bypass surgery, there are two types of blockages: in the new bypass grafts and in native coronary circulation.

Blockages In The New Bypass Grafts
There are several types of grafts used to bypass the coronary artery. The kind of operation conducted during the first time determines the longevity of the bypass operation. Saphenous vein graft, which is the leg vein, usually gets blocked much earlier in 8 to 10 years after surgery.

The arterial grafts taken from the hand and from inside the patient’s chest wall tends to live longer. The best arterial graft is internal mammary artery, which remains open 88-90 per cent of the time, even after 20 years of the operation. This artery is inside the chest wall on both sides of the breast bone.

At present, bilateral internal mammary artery is in use to bypass all coronary (heart) blood vessels in all patients. The best part of these grafts is its longevity - even after 20 to 25 years after surgery. It also dilates according to the need of the heart and the graft secretes abundant vasodilators molecules which make it the king of heart bypass surgery grafts.