Successful Surgical Repair of Adult Anomalous Origin of the Left Main Coronary Artery from the Pulmonary Artery Complicated by a Mass in the Left Atrial Appendage: A Case Report

We encountered a very rare case of ALCAPA complicated by a left intra-atrial mass following acute lower extremity artery occlusion. We performed LITA-LAD bypass, mitral annulus plasty, and resection of the mass along with the left atrial appendage. Due to residual myocardial blood flow from the collateral circulation, we cooled the temperature to 28°C in preparation for inducing cardiac arrest. The postoperative course was uneventful.