title: Partial papillary muscle rupture: a cause of acute mitral regurgitation.
abstract: A 56-year-old woman presented to the cardiology clinic with a 7-day history of dyspnea and chest pressure. An echocardiogram showed a flail posterior mitral valve leaflet, and subsequent left heart catheterization showed complete occlusion of the first obtuse marginal coronary artery. Further investigation demonstrated the culprit lesion to be ischemic partial rupture of the posteromedial papillary muscle. Timely recognition of this condition allowed for an optimal clinical outcome. In this Cardiology Grand Rounds, the authors further describe the above presentation of ischemic partial papillary muscle rupture and provide a brief review of the pathophysiology, diagnosis and treatment of this condition.
authors: Department of Medicine, Emory University, Atlanta, Georgia 30303, USA. pbfluec@emory.edu
authors: Peter B
authors: PB
authors: Flueckiger
authors: Alan C
authors: AC
authors: Cheng
authors: Jonathan M
authors: JM
authors: Patton
authors: Stephen D
authors: SD
authors: Clements
mesh_terms: D001026:Coronary Artery Bypass; D005260:Female; D006342:Heart Rupture, Post-Infarction / Q000150:complications* / Q000601:surgery; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery; D008944:Mitral Valve Insufficiency / Q000209:etiology* / Q000601:surgery; D009203:Myocardial Infarction / Q000150:complications* / Q000601:surgery; D010210:Papillary Muscles / Q000503:physiopathology*; D016896:Treatment Outcome