What is the procedure called for the repair of coronary vessels?

The procedure associated with the repair of coronary vessels is commonly known as "stenting." Stenting involves placing a small mesh tube called a stent into the coronary artery to keep it open and restore blood flow after it has been narrowed or blocked by plaque. This method is often used in conjunction with angioplasty, which is the process of widening the narrowed coronary arteries.

Bypass surgery, on the other hand, involves creating an alternative route for blood flow to bypass the blocked coronary arteries using grafts taken from other vessels in the body. Coronary artery grafting is essentially another term for bypass surgery.

Angioplasty is specifically the technique used to open up the blocked arteries before a stent may be placed, but it does not involve a permanent device to keep the artery open. In a surgical context, "repair" implies that there is a more direct intervention to fix the blood flow issue rather than just opening up the artery temporarily.

Therefore, stenting is the correct term when referring specifically to the placement of a device that helps maintain the integrity and openness of coronary vessels after a blockage has been dealt with.