Arrhythmias & electrophysiology

Efficacy of catheter ablation for ventricular tachycardia in ischemic cardiomyopathy patients without an implantable cardioverter-defibrillator (ICD) implantation

Heart RhythmPublished Retrospective cohort study

Main finding · VT recurrenceResult — go to the resultHazard ratio 0.14 95% CI 0.02–0.98

Authors' conclusion

Patients with ICM undergoing VT ablation without a backup ICD experienced a notably low rate of arrhythmic death. Most recurrences proved nonlethal.

Study context

Population
Patients with ischemic cardiomyopathy undergoing ventricular tachycardia (VT) ablation without an ICD
Participants
114 patients
Exposure
Endo-epicardial vs endocardial-only VT ablation
  • Endo-epicardialn = 12
Outcome
VT recurrence
Follow-up
During

Main finding

As reported in the abstract

median follow-up 53.8 months (24.8-84.2 months)

Hazard ratio

0.14

95% CI 0.02–0.98

P = 0.048

By group

Endo-epicardialvs Endocardial
HR 0.14 (95% CI 0.02–0.98); P = 0.048
VT recurrence, overall
45 patients (39.5%)

Observational data: associations, not effects.

Secondary outcomes

All-cause mortality · median follow-up 53.8 months

Deaths, overall
6 patients (5.3%)
Sudden cardiac deaths
2

Original publication

Efficacy of catheter ablation for ventricular tachycardia in ischemic cardiomyopathy patients without an ICD implantation. Heart Rhythm. Published 9 May 2024. doi:10.1016/j.hrthm.2024.05.011

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