title: Systolic anterior motion of the mitral valve masked by general anesthesia.
abstract: Systolic anterior motion of the mitral valve is usually associated with hypertrophic obstructive cardiomyopathy that results in left ventricular outflow tract obstruction. This is sometimes treated by volume loading or negative inotropics such as beta blockers. We report a rare case of dynamic systolic anterior motion of the mitral valve, in which a beta blocker did not diminish but anesthetic agents masked intraoperatively. The patient underwent mitral valve replacement, and left ventricular outflow tract obstruction was successfully treated.
authors.affiliation: Division of Cardiovascular Surgery, National Hospital Organization Kure Medical Center, Kure, Japan.
authors.forename: Teruya
authors.initials: T
authors.lastname: Nakamura
authors.forename: Naosumi
authors.initials: N
authors.lastname: Sekiya
authors.forename: Taro
authors.initials: T
authors.lastname: Nakazato
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Sawa
mesh_terms: D000368:Aged; D000768:Anesthesia, General; D018618:Echocardiography, Doppler, Color; D017548:Echocardiography, Transesophageal; D019918:Heart Valve Prosthesis Implantation; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D008944:Mitral Valve Insufficiency / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D013599:Systole; D016896:Treatment Outcome; D014694:Ventricular Outflow Obstruction / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*
keywords: Anesthesia; echocardiography; general; heart valve prosthesis implantation; mitral valve insufficiency; transesophageal; ventricular outflow obstruction