Percutaneous Transluminal Coronary Angioplasty (PTCA) is done under local anesthesia and involves manipulating a catheter under fluoroscopic guidance to the opening of the coronary artery, following which a thin guidewire is threaded across the blockage in the vessel. Subsequently, a balloon is tracked over the wire and inflated to push the blockage to the sides and pave the way for good blood flow. A stent is then deployed there, which acts as a scaffold to prevent recoil and vessel closure. A Drug-eluting Stent also delivers a drug locally for 2-3 months so that re-blockage can be avoided.