what is an ptca
PTCA is a minimally invasive surgical procedure for the treatment of coronary atherosclerosis. A balloon-tipped catheter is inserted percutaneously into the arterial circulation, advanced to the aortic root, and directed with a flexible guide wire to the site of coronary stenosis.ercutaneous transluminal coronary angioplasty. n. Abbr. PTCA. A procedure for enlarging a narrowed arterial lumen by peripheral introduction of a balloon-tip catheter followed by dilation of the lumen as the inflated catheter tip is withdrawn.