An angioplasty and stenting procedure is recognized as the best way to stop a heart attack in progress. Coronary angioplasty is a treatment that helps improve the blood supply to your heart. Angioplasty and stenting for stenosis of the extracranial vertebral artery are associated with potential complications such as transient arterial spasm, dissection. It is a process n which a tiny device is inserted into narrowed blood vessels that supply blood to the heart. Interventional cardiologists perform angioplasty, which opens narrowed arteries. They use a long, thin tube called a catheter that has a small balloon on its tip. In the throes of a heart attack, artery-opening angioplasty is a lifesaver. The same can't be said when it's done to open a narrowed heart artery that isn't causing problems. ... Some angioplasties are done to stop a heart attack, others to relieve severe chest pain. Angioplasty is a procedure to restore blood flow through the artery. The doctor threads a thin tube through a blood vessel in the arm or groin up to the involved site in the artery. The tube has a tiny balloon on the end. It uses a balloon-tipped catheter to open a blocked blood vessel and improve blood flow.