Key result
Radiofrequency catheter ablation is an effective strategy for terminating electrical storm in ICD patients, though successful ablation does not necessarily improve overall survival due to progressive heart failure.
Substrate-guided radiofrequency catheter ablation is an effective strategy for terminating electrical storm in ICD patients, though long-term survival remains limited by progressive heart failure.
Supports ablation for acute electrical storm termination in ICD patients; leaves open long-term survival benefit limited by progressive heart failure.
The electrical storm (ES) is defined as a state of electrical instability with three or more sustained ventricular arrhythmias (VAs) occurring within twenty-four hours, which needs intravenous antiarrhythmic medications and frequent defibrillation. Recently, radiofrequency catheter ablation evolved as a sole therapy to terminate ES in patients with ICD, and the survival has been reported to be improved with successful ablation during follow-up. In this review, we briefly summarize substrate mapping and substrate ablation strategy in patients with ES, and discuss the reason of recurrence after ablation.
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Minglong Chen (2015) conducted a review in Electrical storm in ICD patients. Radiofrequency catheter ablation and substrate modification vs. Medical therapy was evaluated. Radiofrequency catheter ablation is an effective strategy for terminating electrical storm in ICD patients, though successful ablation does not necessarily improve overall survival due to progressive heart failure.
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