title: Clockwise and counter-clockwise circulation of wavefronts around an anatomical obstacle as one mechanism of two morphologies of sustained ventricular tachycardia in patients after a corrective operation of tetralogy of Fallot.
abstract: Two different monomorphic VTs were observed in two patients after a corrective operation for tetralogy of Fallot. The activation pattern of the wavefronts of the two VTs were different: in a counter-clockwise direction around the anatomical obstacle due to a ventriculotomy of the right ventricle in one VT; and in a clockwise direction around the same obstacle in the other VT. The different revolutions of the wavefronts could be the mechanism for the different morphologies of VT.
authors.affiliation: First Department of Internal Medicine, Niigata University School of Medicine, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Chinushi
authors.forename: Y
authors.initials: Y
authors.lastname: Aizawa
authors.forename: H
authors.initials: H
authors.lastname: Kitazawa
authors.forename: K
authors.initials: K
authors.lastname: Takahashi
authors.forename: T
authors.initials: T
authors.lastname: Washizuka
authors.forename: A
authors.initials: A
authors.lastname: Shibata
mesh_terms: D000293:Adolescent; D000328:Adult; D002304:Cardiac Pacing, Artificial; D002921:Cicatrix; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006352:Heart Ventricles / Q000601:surgery; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000503:physiopathology*; D017180:Tachycardia, Ventricular / Q000209:etiology / Q000503:physiopathology*; D013771:Tetralogy of Fallot / Q000503:physiopathology / Q000601:surgery*