Get the Best Treatment for Angioplasty by our Best Angioplasty Doctor in Bangalore | Dr. Ameet Oswal. Angioplasty is a medical treatment used to open-up narrow or blocked blood vessels. The procedure is performed by inserting a small, hollow tube called a catheter through the vessel that is guided to the location of the blockage. Once in place, wire is passed into the blocked artery and then a balloon catheter is placed against the block and the balloon is inflated, which spaces the vessel and restores blood flow, lastly an Drug Eluting stent is placed. Cardiologists use angioplasty to treat a number of conditions, including heart disease, peripheral artery disease, and renal artery disease.