STAMFORD - One local doctor says the procedure performed on former President Bill Clinton saves lives.

Clinton underwent an angioplasty Thursday after complaining of chest pains.

Stamford Hospital's Dr. Thomas Nero explains the procedure involves a surgeon using a catheter to insert a balloon into a patient's artery.

Once inflated, a metal stent is then inserted to keep the artery open.

Dr. Nero says the procedure is minimally invasive and patients can go home quickly, as did Clinton, who was released from the hospital Friday.