Radiofrequency catheter ablation successfully controlled clinical tachycardia in 80% (12 of 15) of patients with an implantable cardioverter defibrillator experiencing an arrhythmic storm.
Cohort (n=15)
No
Does radiofrequency catheter ablation effectively control arrhythmic storm in patients with an ICD and hemodynamically stable VT?
Radiofrequency catheter ablation is an effective strategy for controlling arrhythmic storm due to hemodynamically stable VT in patients with an ICD, a complication that occurs uncommonly and late after implantation.
The aim of the study was to analyze the usefulness of RFA in controlling arrhythmic storm due to hemodynamically stable VT in a cohort of patients with an ICD and to evaluate the incidence of arrhythmic storm among patients with an ICD. A group of 13 (3%) of 403 consecutive ICD recipients were submitted to RFA of VT during an arrhythmic storm. Two additional patients were referred from other institutions. Standard criteria were used for VT endocardial ablation. A transcatheter epicardial approach was required in three patients. A total of 18 procedures were performed in 15 patients. A mean of 13.2 +/- 9.7 pulses of RF were delivered. Clinical tachycardia was successfully ablated in 12 (80%) patients. One patient died in incessant VT, 1 patient underwent heart transplant, and 1 was treated with direct current ablation. During a mean follow-up of 12 +/- 17 months, only two patients suffered a single episode of VT. Arrhythmic storm requiring VT ablation was uncommon among patients with an ICD and occurred late after ICD implantation. The arrhythmic episode was successfully controlled in the majority of patients with endocardial or epicardial RFA.
SILVA et al. (Thu,) conducted a cohort in Arrhythmic storm due to hemodynamically stable ventricular tachycardia in patients with an ICD (n=15). Radiofrequency catheter ablation (RFA) was evaluated on Successful ablation of clinical tachycardia. Radiofrequency catheter ablation successfully controlled clinical tachycardia in 80% (12 of 15) of patients with an implantable cardioverter defibrillator experiencing an arrhythmic storm.