title: Acute occlusion of left coronary ostium associated with congenital quadricuspid aortic valve.
abstract: A 10-year-old girl suffered from chest discomfort during exercise. She experienced an acute myocardial infarction accompanied by an obstruction in an orifice to the left coronary artery. An emergency operation revealed that the aortic valve was quadricuspid, and a left-sided small cusp had adhered to the aortic wall resulting in an unusual sac with a tiny slit. Resection of the sac disclosed the ostium to left coronary artery. Blood toward the left coronary artery passed through the tiny slit. The mechanisms of obstruction in the coronary artery were uncertain. She recovered well after the aortic valve replacement with resection of the aortic cusps.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, Ogaki Municipal Hospital, Ogaki, Japan. rokusika@cd5.so-net.ne.jp
authors.forename: Masato
authors.initials: M
authors.lastname: Mutsuga
authors.forename: Shuji
authors.initials: S
authors.lastname: Tamaki
authors.forename: Yukifusa
authors.initials: Y
authors.lastname: Yokoyama
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Kato
authors.forename: June
authors.initials: J
authors.lastname: Yokote
authors.forename: Norihisa
authors.initials: N
authors.lastname: Ohata
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Suzuki
mesh_terms: D001021:Aortic Valve / Q000002:abnormalities*; D002648:Child; D017023:Coronary Angiography; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D009203:Myocardial Infarction / Q000209:etiology; D016896:Treatment Outcome