title: Complete atrioventricular block and infective endocarditis in a patient with hypertrophic obstructive cardiomyopathy.
abstract: A 62-year-old man with hypertrophic obstructive cardiomyopathy (HOCM) had complete atrioventricular (AV) block and subsequent cardiac standstill. A previous electrocardiogram revealed a bifascicular block pattern. Because he also suffered from infective endocarditis of the native aortic valve, surgical therapy (dual-chamber permanent pacing, myectomy of the left ventricular outflow tract, and valve replacement) was performed. Complete AV block unrelated to a procedure is a rare complication in patients with HOCM, but it may be life-threatening. Therefore, a pre-existing cardiac conduction disturbance should be specifically recognized as the aura of a higher degree of AV block.
authors.affiliation: Division of Cardiology, Tokyo Kita Social Insurance Hospital, Japan. taku-iku-mm@fa2.so-net.ne.jp
authors.forename: Takuji
authors.initials: T
authors.lastname: Katayama
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Tsuruya
authors.forename: Susumu
authors.initials: S
authors.lastname: Ishikawa
mesh_terms: D001022:Aortic Valve Insufficiency / Q000150:complications / Q000601:surgery; D054537:Atrioventricular Block / Q000150:complications* / Q000601:surgery / Q000628:therapy; D058409:Cardiac Resynchronization Therapy Devices; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications* / Q000601:surgery; D004696:Endocarditis / Q000150:complications* / Q000601:surgery; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008297:Male; D008875:Middle Aged; D014694:Ventricular Outflow Obstruction / Q000150:complications / Q000601:surgery