title: Prominent systolic coronary flow in a coronary artery fistula with a giant aneurysma.
abstract: A 68-year-old Japanese woman was admitted to hospital because of chest oppression during exertion. Coronary angiography showed a coronary artery fistula with a giant aneurysm, which originated from both the left anterior descending (LAD) and right coronary arteries. We investigated coronary blood flow velocity using the Doppler guide wire technique. The coronary flow pattern showed a very prominent systolic component, whereas the diastolic flow components were nearly normal before the operation at the LAD site proximal to the coronary artery fistula. This pattern returned to normal after the operation. This report describes the relationship between the coronary steal phenomenon and coronary flow dynamics investigated directly using the Doppler guidewire technique.
authors.affiliation: First Department of Internal Medicine, Niigata University School of Medicine, Niigata, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Hori
authors.forename: T
authors.initials: T
authors.lastname: Matsubara
authors.forename: I
authors.initials: I
authors.lastname: Nakagawa
authors.forename: S
authors.initials: S
authors.lastname: Imai
authors.forename: K
authors.initials: K
authors.lastname: Ozaki
authors.forename: K
authors.initials: K
authors.lastname: Hatada
authors.forename: K
authors.initials: K
authors.lastname: Tsuchida
authors.forename: H
authors.initials: H
authors.lastname: Watanabe
authors.forename: M
authors.initials: M
authors.lastname: Kitamua
authors.forename: J
authors.initials: J
authors.lastname: Hayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Aizawa
mesh_terms: D000368:Aged; D001159:Arterio-Arterial Fistula / Q000150:complications / Q000503:physiopathology*; D001783:Blood Flow Velocity; D003323:Coronary Aneurysm / Q000150:complications* / Q000503:physiopathology*; D003326:Coronary Circulation; D003327:Coronary Disease / Q000150:complications / Q000503:physiopathology*; D005260:Female; D006801:Humans; D013599:Systole