title: Congenital atresia of left main coronary artery.
abstract: We report a rare case of congenital atresia of left main coronary artery in an elderly male presenting with angina and positive stress thallium test. Coronary angiogram showed absence of left main coronary artery in the left aortic sinus. Collaterals from right coronary artery supplied left anterior descending artery and left circumflex artery territories. Despite collaterals, the left anterior descending and left circumflex arteries were rudimentary. Poor size of left-sided arteries precluded any surgical revascularization which is the treatment of choice in this rare entity.
authors.affiliation: Department of Cardiology, Military Hospital, Pune.
authors.forename: Charanjit
authors.initials: C
authors.lastname: Singh
authors.forename: Harminder
authors.initials: H
authors.lastname: Singh
authors.forename: Anil
authors.initials: A
authors.lastname: Kumar
authors.forename: A K
authors.initials: AK
authors.lastname: Banerji
authors.forename: N
authors.initials: N
authors.lastname: Aggarwal
authors.forename: P
authors.initials: P
authors.lastname: Bharadwaj
mesh_terms: D000787:Angina Pectoris / Q000175:diagnosis* / Q000209:etiology; D017023:Coronary Angiography / Q000379:methods; D003330:Coronary Vessel Anomalies / Q000150:complications / Q000000981:diagnostic imaging*; D003331:Coronary Vessels / Q000473:pathology*; D015150:Echocardiography, Doppler; D004562:Electrocardiography; D005500:Follow-Up Studies; D006330:Heart Defects, Congenital / Q000150:complications / Q000000981:diagnostic imaging; D006334:Heart Function Tests; D006801:Humans; D008297:Male; D008875:Middle Aged; D035583:Rare Diseases; D018570:Risk Assessment; D012720:Severity of Illness Index