title: Collateral-dependent ischemic mitral regurgitation.
abstract: There is much debate on the pathogenesis of ischemic mitral regurgitation (MR), usually related to global or regional left ventricular dysfunction or remodeling secondary to chronic ischemic changes, altering the tethering and closing forces on the mitral apparatus. There is a paucity of literature describing MR in the setting of acute ischemia. We describe a case in which the MR was dynamic and directly related to changes in coronary collateral flow.
authors.affiliation: Cardiology Department, Soroka University Medical Center, PO Box 151, Beer-Sheva, Israel. iliar@bgu.ac.il.
authors.forename: Jean Marc
authors.initials: JM
authors.lastname: Weinstein
authors.forename: Gizela
authors.initials: G
authors.lastname: Kidman
authors.forename: Reuben
authors.initials: R
authors.lastname: Ilia
mesh_terms: D054058:Acute Coronary Syndrome / Q000150:complications* / Q000503:physiopathology*; D000368:Aged; D003097:Collateral Circulation / Q000502:physiology*; D017023:Coronary Angiography; D003331:Coronary Vessels / Q000000981:diagnostic imaging / Q000503:physiopathology; D005260:Female; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D017202:Myocardial Ischemia / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D062645:Percutaneous Coronary Intervention; D012039:Regional Blood Flow / Q000502:physiology; D015899:Tomography, Emission-Computed, Single-Photon; D016896:Treatment Outcome