title: Hyperdominant Left Anterior Descending Artery: ARare Coronary Artery Anomaly.
abstract: The posterior descending artery supplying the posterior one-third of the inter ventricular septum usually arise from the right coronary artery (RCA) or the left circumflex artery (LCx). Posterior descending artery arising from the left anterior descending artery is a rare anomaly. A66-year man presented with chest pain, ECG changes, and raised biomarkers. A diagnosis of non-STelevation myocardial infarction was made. Coronary angiogram, done on the next day, revealed the posterior descending artery as a continuation of the left anterior descending artery (LAD) beyond the crux and a rudimentary right coronary artery. The left anterior descending artery had subcritical stenosis in proximal course (confirmed on fractional flow reserve) and was advised medical treatment.
authors.affiliation: Department of Cardiology, Rawalpindi Institute of Cardiology, Rawalpindi.
authors.forename: Hamid Sharif
authors.initials: HS
authors.lastname: Khan
authors.affiliation: Department of Cardiology, Rawalpindi Institute of Cardiology, Rawalpindi.
authors.forename: Imran
authors.initials: I
authors.lastname: Iftikhar
authors.affiliation: Department of Cardiology, Rawalpindi Institute of Cardiology, Rawalpindi.
authors.forename: Azhar Mahmood
authors.initials: AM
authors.lastname: Kayani
mesh_terms: D000368:Aged; D001011:Aorta; D002637:Chest Pain / Q000209:etiology; D017023:Coronary Angiography; D003330:Coronary Vessel Anomalies / Q000150:complications* / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003331:Coronary Vessels / Q000033:anatomy & histology*; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000209:etiology / Q000503:physiopathology