Al-Akchar, Mohammad

ABSTRACT Background Electrical storm (ES) is a life‐threatening manifestation of recurrent ventricular arrhythmia. While anti‐arrhythmic drugs (AADs) have historically been the first‐line treatment, the role of catheter ablation (CA) as an initial therapy in ES remains incompletely defined. This meta‐analysis evaluates the efficacy and safety of radiofrequency CA compared to escalating medical therapy in patients with ES. Methods A systematic search of PubMed, Science Direct, and Cochrane databases was conducted for studies published from 2010 to 2025 that compared CA with medical therapy as first‐line treatment for ES. Outcomes of interest included ES recurrence, ventricular arrhythmia recurrence, in‐hospital mortality, procedural complications, and follow‐up survival. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated using random‐effects models. Results Six studies encompassing 963 patients (473 CA, 490 medical therapy) were included. The mean age was 67.8 years, and 87.7% were male. The mean left ventricular ejection fraction was 33%, and ischemic cardiomyopathy was present in 77.5% of CA and 72.1% of MT patients. CA reduced the risk of ES recurrence by 71% compared to medical therapy (OR: 0.29; 95% CI: 0.15–0.53; p < 0.001; I ² = 53%). Recurrence of any ventricular arrhythmia, in‐hospital mortality, and long‐term survival were also significantly improved with CA. Conclusion This meta‐analysis suggests that CA is associated with lower ES and VA recurrence and in‐hospital mortality and improved survival compared to medical therapy alone. These findings support consideration of catheter ablation as a first‐line strategy. Larger prospective trials are needed to confirm these findings and guide patient selection.