title: Congenital atresia of the ostium of the left coronary artery. Diagnostic difficulty and successful surgical revascularization in two patients.
abstract: We report two cases of congenital atresia of the ostium of the left coronary artery. Case 1: a six-month-old infant presenting with serious cardiac insufficiency. A noninvasive diagnosis of dilated myocardiopathy was established and the clinical picture was pharmacologically compensated. When the patient was nine months of age, a hemodynamic study was performed that revealed congenital atresia of the ostium of the left coronary artery; the infant immediately underwent a successful anastomosis of the internal mammary artery with the left coronary artery. Case 2: an eleven-year-old asymptomatic boy with a history of heart murmur from the age of six months on, was referred for surgery with a diagnosis of anomalous origin of the left coronary artery from pulmonary trunk. A definitive diagnosis of atresia of the left coronary ostium was only established during surgery. Successful surgical revascularization with the left internal mammary artery, and left ventricular aneurysmectomy were performed.
authors.affiliation: Hospital do Coraao de Ribeirão Preto/ Fundação Waldemar B. Pessoa, USP.
authors.forename: F
authors.initials: F
authors.lastname: Amaral
authors.forename: C
authors.initials: C
authors.lastname: Tanamati
authors.forename: J A
authors.initials: JA
authors.lastname: Granzotti
authors.forename: J L
authors.initials: JL
authors.lastname: Haddad
authors.forename: J R
authors.initials: JR
authors.lastname: Leite
authors.forename: M
authors.initials: M
authors.lastname: Barbero-Marcial
mesh_terms: D002648:Child; D003330:Coronary Vessel Anomalies / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery*; D004562:Electrocardiography; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007387:Internal Mammary-Coronary Artery Anastomosis; D008297:Male; D011859:Radiography; D016896:Treatment Outcome