Arrhythmias & electrophysiology
Impact of Catheter Ablation of Electrical Storm on Survival: A Propensity Score-Matched Analysis
Authors' conclusion
In propensity-matched analyses, this large study shows that CA-based management of patients admitted for ES is associated with a reduction in mortality compared with medical treatment, particularly in patients with a low ejection fraction.
Study context
- Population
- Consecutive patients admitted for electrical stormmatched 1:1, 2 groups of 288
- Participants
- 780 patients
- Exposure
- Catheter ablation vs medical therapy alone
- Catheter ablation (CA)n = 288
- Medical therapy alonen = 288reference
- Outcome
- Survival after discharge
- Follow-up
- 1 year
Methodological detailspropensity-score matched, multicentre, 4 tertiary centres
- Propensity-score matched
- Multicentre
- 4 tertiary centres
Main finding
As reported in the abstract
P < 0.001
Observational data: associations, not effects.
Further findings
Survival after discharge · 3 years
P = 0.017
ES recurrence · 1 year
P < 0.001
| Outcome | HR (95% CI) | |
|---|---|---|
| Effect of ablation, by subgroup (age >70 y; LVEF <35%)Age >70 years | 0.39 (0.24–0.66) | |
| Effect of ablation, by subgroup (age >70 y; LVEF <35%)LVEF <35% | 0.39 (0.27–0.59) | |
| 0.20.5125Hazard ratio (log scale) |
Original publication
Impact of Catheter Ablation of Electrical Storm on Survival: A Propensity Score-Matched Analysis. JACC Clin Electrophysiol. Published 31 July 2024. doi:10.
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