Angioplasty opens blocked arteries so that blood can flow to your heart. It is done by putting a thin tube (catheter) in through a small puncture in your arm or leg artery up to your heart. A balloon is inflated and then removed. This opens the artery.

Angioplasty is a procedure to widen narrowed or obstructed arteries or veins. An empty, collapsed balloon, known as a balloon catheter, is passed over a wire into the narrowed locations and then inflated. The balloon forces expansion of the narrowed area within the vessel and the surrounding muscular wall, opening up the blood vessel for improved flow, and the balloon is then deflated and withdrawn.