Ventricular fibrillation triggered during and after radiofrequency energy delivery to the site of origin of idiopathic right ventricular outflow tract arrhythmia.
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.
Iijima
Kenichi
K
First Department of Internal Medicine and School of Health Science, Nigata University School of Medicine, 2-746 Asahimachi, Chuou-ku,Nigata, Japan.
Chinushi
Masaomi
M
Furushima
Hiroshi
H
Hosaka
Yukio
Y
Izumi
Daisuke
D
Aizawa
Yoshifusa
Y
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*