title: A case of successful percutaneous transluminal septal myocardial ablation for heart failure due to severe left ventricular outflow obstruction with Mönckeberg's arteriosclerosis, manifested after aortic valvular replacement.
abstract: Although percutaneous transluminal septal myocardial ablation (PTSMA) has been the established treatment of symptomatic patients with hypertrophic obstructive cardiomyopathy (HOCM), the efficacy for specific HOCM is not elucidated. We report a successful case of PTSMA for heart failure with severe left ventricular outflow tract (LVOT) obstruction due to sigmoid-shaped interventricular septum and diffuse left ventricular hypertrophy with Mönckeberg's arteriosclerosis and aortic valvular stenosis. While the PTSMA relieved LVOT obstruction and symptoms in the acute phase, the modest recurrence was confirmed 6 months later, which is rare in the case of idiopathic HOCM. The possible mechanisms of LVOT obstruction and recurrence are discussed.
authors.affiliation: Division of Cardiology, Mie Heart Center, 2227-1, Ohyodo, Meiwa, Takigun, Mie, 515-0302, Japan, m.katoh@live.jp.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Kato
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Miyahara
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Suzuki
authors.forename: Fumiya
authors.initials: F
authors.lastname: Uchida
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Nishimura
authors.forename: Hideo
authors.initials: H
authors.lastname: Nishikawa
mesh_terms: D055011:Ablation Techniques / Q000379:methods*; D001024:Aortic Valve Stenosis / Q000601:surgery*; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications* / Q000601:surgery; D017023:Coronary Angiography; D004452:Echocardiography; D005260:Female; D006333:Heart Failure / Q000209:etiology / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D050380:Monckeberg Medial Calcific Sclerosis / Q000150:complications*; D014057:Tomography, X-Ray Computed; D014694:Ventricular Outflow Obstruction / Q000150:complications* / Q000601:surgery