A Case of Extrinsic Compression of the Left Main Coronary Artery by Dilated Pulmonary Artery in Eisenmengers Syndrome

The extrinsic compression of the left main coronary artery secondary to pulmonary artery trunk dilatation is a relatively rare syndrome. [1,2] It is mostly associated with congenital acyanotic heart disease, idiopathic pulmonary arterial dilatation or primary pulmonary hypertension. [3,4] Most cases of pulmonary artery hypertension with no atherosclerotic risk factors rarely undergo coronary angiography, and hence, diagnoses are seldom made and proper management is delayed.We describe a patient with Ostium secundum atrial septal defect with severe pulmonary hypertension who presented with clinical angina ,diagnosed to have left main coronary artery compression by CT angiography ,underwent successful percutaneous coronary intervention with good symptomatic relief.