title: Ventricular fibrillation triggered during and after radiofrequency energy delivery to the site of origin of idiopathic right ventricular outflow tract arrhythmia.
abstract: We observed a case of idiopathic ventricular arrhythmias originating from the right ventricular outflow tract (RVOT). The origin of target premature ventricular contraction (PVC) and nonsustained ventricular tachycardia (VT) was within a wide low-voltage area around the RVOT. During radiofrequency (RF) application to the site of arrhythmia origin, polymorphic VT and ventricular fibrillation were repeatedly triggered by new PVC that had developed near the site of ablation. This electrical storm persisted >30 minutes after cessation of RF current delivery, and was suppressed by additional RF applications to the site of origin of the new PVC.
authors.affiliation: First Department of Internal Medicine and School of Health Science, Nigata University School of Medicine, 2-746 Asahimachi, Chuou-ku,Nigata, Japan.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Iijima
authors.forename: Masaomi
authors.initials: M
authors.lastname: Chinushi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Furushima
authors.forename: Yukio
authors.initials: Y
authors.lastname: Hosaka
authors.forename: Daisuke
authors.initials: D
authors.lastname: Izumi
authors.forename: Yoshifusa
authors.initials: Y
authors.lastname: Aizawa
mesh_terms: D000328:Adult; D017115:Catheter Ablation / Q000009:adverse effects*; D005260:Female; D006801:Humans; D017180:Tachycardia, Ventricular / Q000150:complications / Q000601:surgery*; D016896:Treatment Outcome; D014693:Ventricular Fibrillation / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control*; D014694:Ventricular Outflow Obstruction / Q000150:complications / Q000601:surgery*