Angioplasty can improve symptoms of blocked arteries, such as chest pain and shortness of breath. Angioplasty is also often used during a heart attack to quickly open a blocked artery and reduce the amount of damage to your heart. Coronary angioplasty is a procedure used to open clogged heart arteries. Angioplasty uses a tiny balloon catheter that is inserted in a blocked blood vessel to help widen it and improve blood flow to your heart. Angioplasty is a surgery to open narrowed blood vessels that supply blood to the heart. These blood vessels are called the coronary arteries.Reasons for Angioplasty