Left main coronary artery compression by dilated main pulmonary artery in endocardial cushion defect.
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.
Manojkumar
Rohit
R
Department of Cardiology, Post Graduate Institute of Medical Education and Research, Chandigarh. manoj_786@hotmail.com
Grover
Anil
A
D006328:Cardiac Catheterization; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000209:etiology*; D003937:Diagnosis, Differential; D004452:Echocardiography; D004694:Endocardial Cushion Defects / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging / Q000473:pathology*; D014262:Tricuspid Valve Insufficiency / Q000150:complications / Q000175:diagnosis; D014694:Ventricular Outflow Obstruction / Q000150:complications / Q000175:diagnosis