title: Anterolateral papillary muscle rupture: an unusual complication of septic coronary embolism.
abstract: In most cases, acute mitral valve regurgitation in the setting of infective endocarditis is caused by the destruction of either the mitral valve leaflets or the chordal apparatus. A 54-year-old woman had development of respiratory failure due to pulmonary oedema from severe acute mitral valve regurgitation in the setting of acute bacterial endocarditis. She was found to have a ruptured anterolateral papillary muscle from occlusion of the circumflex artery by embolic vegetations arising from the aortic valve. Although this occurrence is uncommon, an embolic phenomenon resulting in myocardial infarction and subsequent rupture of papillary muscle must be considered as a cause of acute severe mitral valve regurgitation.
authors.affiliation: Division of Cardiovascular Diseases, Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA.
authors.forename: Mohammad Q
authors.initials: MQ
authors.lastname: Najib
authors.forename: Howard R
authors.initials: HR
authors.lastname: Lee
authors.forename: Patrick A
authors.initials: PA
authors.lastname: DeValeria
authors.forename: Karyne L
authors.initials: KL
authors.lastname: Vinales
authors.forename: Phani
authors.initials: P
authors.lastname: Surapaneni
authors.forename: Hari P
authors.initials: HP
authors.lastname: Chaliki
mesh_terms: D001021:Aortic Valve / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009202:Cardiomyopathies / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D001026:Coronary Artery Bypass; D017548:Echocardiography, Transesophageal; D004617:Embolism / Q000150:complications* / Q000000981:diagnostic imaging; D017809:Fatal Outcome; D005260:Female; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009102:Multiple Organ Failure; D010210:Papillary Muscles / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D012421:Rupture / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D018805:Sepsis / Q000150:complications* / Q000000981:diagnostic imaging