title: Modified septal myectomy using a curved knife for left ventricular septal hypertrophy.
abstract: An 86-year-old woman presented with chest pain and discomfort. Echocardiography revealed severe aortic valve stenosis and asymmetric septal hypertrophy. Aortic valve replacement and myectomy were performed using a curved knife. The blade was U-shaped in cross-section, and was curved upward along the long axis. Hypertrophic septal myocardium was removed along the long axis of the left ventricle (LV), and a groove for blood flow was constructed. The patient was discharged uneventfully without recurrence of her chest discomfort. Our result suggested that a curved knife is a reasonable option for transaortic septal myectomy in patients with obstructive LV hypertrophy.
authors.affiliation: Department of Department of Cardiovascular Surgery, Hiroshima University, Hiroshima, Japan.
authors.forename: Shinya
authors.initials: S
authors.lastname: Takahashi
authors.affiliation: Department of Department of Cardiovascular Surgery, Hiroshima University, Hiroshima, Japan.
authors.forename: Taiichi
authors.initials: T
authors.lastname: Takasaki
authors.affiliation: Department of Cardiology, Mazda Hospital, Hiroshima, Japan.
authors.forename: Futoshi
authors.initials: F
authors.lastname: Tadehara
authors.affiliation: Department of Department of Cardiovascular Surgery, Hiroshima University, Hiroshima, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Taguchi
authors.affiliation: Department of Department of Cardiovascular Surgery, Hiroshima University, Hiroshima, Japan.
authors.forename: Keijiro
authors.initials: K
authors.lastname: Katayama
authors.affiliation: Department of Department of Cardiovascular Surgery, Hiroshima University, Hiroshima, Japan.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Kurosaki
authors.affiliation: Department of Department of Cardiovascular Surgery, Hiroshima University, Hiroshima, Japan.
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Imai
authors.affiliation: Department of Department of Cardiovascular Surgery, Hiroshima University, Hiroshima, Japan.
authors.forename: Taijiro
authors.initials: T
authors.lastname: Sueda
mesh_terms: D000369:Aged, 80 and over; D001024:Aortic Valve Stenosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery*; D006348:Cardiac Surgical Procedures / Q000295:instrumentation*; D003131:Combined Modality Therapy / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005260:Female; D006346:Heart Septum / Q000601:surgery*; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D016896:Treatment Outcome