New Delhi (PTI): A coronary bypass surgery on Prime Minister Manmohan Singh began on Saturday during which doctors will replace three older grafts performed on him in 1990. (Latest report said that one graft was successfully performed on Prime Minister Manmohan Singh who is undergoing bypass surgery at AIIMS, according toDr Sudhir Vaishnav.)

The surgery on the 76-year-old leader at AIIMS is understood to have begun at around 7 a.m. and is expected to last for several hours, hospital sources said.

Singh, who has a history of heart ailments which have included a bypass surgery 18 years ago and an angioplasty six years ago, was admitted to the All India Institute of Medical Sciences (AIIMS) here on Friday.

A team of 11 doctors from AIIMS and AHI led by Dr P K Panda, a highly reputed cardiac surgeon, will perform the surgery on Singh who has been complaining of fatigue and signs of chest pain in recent days. He was then subjected to tests which indicated blockages.

Two doctors from AIIMS, Dr Milind Hote and Dr S K Chaudhry who are Associate Professors and cardio-thoracic surgeons will take part in PM's surgery.

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