Left main coronary artery compression by dilated main pulmonary artery in endocardial cushion defect

Indian Heart J. Jan-Feb 2002;54(1):74-6.


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.

Publication types

  • Case Reports

MeSH terms

  • Cardiac Catheterization
  • Coronary Angiography
  • Coronary Disease / diagnostic imaging
  • Coronary Disease / etiology*
  • Diagnosis, Differential
  • Echocardiography
  • Endocardial Cushion Defects / complications*
  • Endocardial Cushion Defects / diagnosis
  • Humans
  • Male
  • Middle Aged
  • Pulmonary Artery / diagnostic imaging
  • Pulmonary Artery / pathology*
  • Tricuspid Valve Insufficiency / complications
  • Tricuspid Valve Insufficiency / diagnosis
  • Ventricular Outflow Obstruction / complications
  • Ventricular Outflow Obstruction / diagnosis