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Left main coronary artery compression by dilated main pulmonary artery in endocardial cushion defect
Rohit Manojkumar1, Anil Grover
1Department of Cardiology, Post Graduate Institute of Medical Education and Research, Chandigarh. manoj_786@hotmail.com
Abstract:
A 56-year-old man was evaluated for exertional dyspnoea. Chest X-ray showed mild cardiomegaly and a dilated main pulmonary artery. On echocardiogram he was found to have ostium primum atrial septal defect with moderate tricuspid insufficiency. Cardiac catheterization revealed an oximetry step-up of 14% at low right atrium with angiogram demonstrating a cleft in the mitral valve, an elongated left ventricular outflow tract and ventricular septal defect closed by a septal aneurysm. Coronary angiogram revealed ostial compression of the left main coronary artery with the rest of the coronary artery anatomy being normal.