ReviewCJC open2026
Ventricular Tachycardia Recurrence After Catheter Ablation in Nonischemic Cardiomyopathy with Mildly to Moderately Reduced Ejection Fraction.
Review in CJC open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Patients with nonischemic cardiomyopathy (NICM) are at risk for sustained ventricular tachycardia (VT). Implantable cardioverter-defibrillators (ICDs) are guideline-recommended for secondary prevention, but the necessity of routine ICD implantation after successful catheter ablation (CA) in patients with preserved or mildly reduced left ventricular ejection fraction (LVEF > 35%) remains uncertain. This review summarizes the current evidence. Methods: A PROSPERO-registered systematic review was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, Embase, and Cochrane were searched through June 2025. Studies including adults with NICM and LVEF > 35% undergoing CA for sustained monomorphic VT were eligible. Data on patient characteristics, ablation outcomes, VT recurrence, mortality, and ICD therapies were extracted. Results were descriptively synthesized, and weighted means were calculated when feasible. Results: Eleven studies (1995-2024), including 1430 patients, were identified; 936 (66%) were analyzable. The weighted mean LVEF was 38% ± 14%; mean age was 59 ± 14 years. Sustained VT recurrence ranged from 14%-67% during a weighted mean follow-up period of 608 ± 745 days. Procedural noninducibility consistently predicted lower recurrence rates (18%-32%), than those in inducible patients (up to 75%). Two studies using cardiac magnetic resonance imaging found non-circumferential mid-myocardial late gadolinium enhancement with septal involvement associated with higher recurrence risk. Risk of bias was moderate to serious. Conclusions: In NICM patients with LVEF > 35%, noninducibility after CA predicts favourable arrhythmic outcomes. Non-circumferential mid-myocardial late gadolinium enhancement with septal involvement, and inducibility after VT ablation, identify higher-risk patients. Registration: PROSPERO CRD420251075109.
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