Open-heart surgery in which a piece of a blood vessel from another location is grafted onto one of the coronary arteries to reroute blood around a blockage is:

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The procedure described is coronary artery bypass graft (CABG) surgery. PTCA is percutaneous transluminal coronary angioplasty, a different procedure in which a balloon is used to open a blocked artery. MIDCAB is minimally invasive direct coronary artery bypass, which uses a smaller incision than traditional CABG surgery. TMR is transmyocardial revascularization, a procedure in which lasers are used to create small channels in the heart muscle to increase blood flow.

Open-Heart Surgery in Which a Piece of a Blood Vessel