title: Isolated acute papillary muscle infarction in the absence of coronary artery disease resulting in cardiogenic shock and emergent mitral valve replacement.
abstract: A 76-year-old woman presented to our institution with shortness of breath, weakness, and syncope. Evaluation revealed severe mitral regurgitation and cardiogenic shock secondary to a flail posterior mitral valve leaflet. An emergency cardiac catheterization did not demonstrate significant coronary artery disease. The patient was sent for an emergency mitral valve replacement. Intraoperatively, the posteromedial papillary muscle was found to be transected. Histological analysis, clinical presentation, and a review of the literature of isolated papillary muscle infarction are presented.
authors.affiliation: Department of Medicine, Section of Cardiology, Saint Vincent's Hospital and Medical Center, New York, New York 10011, USA.
authors.forename: S R
authors.initials: SR
authors.lastname: Weiss
authors.forename: J
authors.initials: J
authors.lastname: Coppola
authors.forename: J
authors.initials: J
authors.lastname: Gambino
authors.forename: A
authors.initials: A
authors.lastname: Nahal
mesh_terms: D000208:Acute Disease; D000368:Aged; D004562:Electrocardiography; D004638:Emergency Treatment; D005260:Female; D006341:Heart Rupture / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D009203:Myocardial Infarction / Q000150:complications* / Q000175:diagnosis / Q000473:pathology; D010210:Papillary Muscles / Q000473:pathology; D012770:Shock, Cardiogenic / Q000175:diagnosis / Q000209:etiology*