title: Surgical cryoablation for frequent premature ventricular contraction originating in the left sinus of Valsalva.
abstract: Cryoablation in the left ventricular outflow tract and aortic valve replacement were conducted in a 70-year-old man with frequent premature ventricular contraction and nonsustained ventricular tachycardia complicated by Sellers grade 4 aortic regurgitation. The earliest endocardial activation site during premature ventricular contraction was confirmed by a preoperative electrophysiological study of the left sinus of Valsalva. Cryoablation preceded valvulectomy followed by aortic valve replacement. Clinical symptoms of premature ventricular contraction disappeared immediately after surgery.
authors.affiliation: Department of Cardiovascular Surgery, Yamanashi Kosei Hospital, 860 Ochiai, Yamanashi, 405-0033, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Ariizumi
authors.forename: R
authors.initials: R
authors.lastname: Hashimoto
authors.forename: N
authors.initials: N
authors.lastname: Hasuda
authors.forename: T
authors.initials: T
authors.lastname: Asakawa
authors.forename: S
authors.initials: S
authors.lastname: Mochizuki
authors.forename: H
authors.initials: H
authors.lastname: Mochizuki
mesh_terms: D001021:Aortic Valve / Q000601:surgery; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D003452:Cryosurgery; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D012850:Sinus of Valsalva; D014694:Ventricular Outflow Obstruction / Q000601:surgery*; D018879:Ventricular Premature Complexes / Q000601:surgery*