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Non-revascularized chronic total occlusions impact on substrate and post-ablation results in drug-refractory electrical storm
- Source :
- Frontiers in Cardiovascular Medicine, Vol 10 (2023)
- Publication Year :
- 2023
- Publisher :
- Frontiers Media S.A., 2023.
-
Abstract
- Background and aimsThere is limited data concerning the effect of non-revascularized chronic total occlusions (NR-CTOs) after VT ablation. This study sought to evaluate the impact of NR-CTOs after ablation for electrical storm (ES).MethodsPost-hoc retrospective analysis of data regarding 64 consecutive post-myocardial infarction patients (out of which 12 patients with NR-CTOs and 52 without NR-CTOs) undergoing substrate ablation for ES with an available median follow-up of 37.53 (7.25–64.65) months. Ablation result was assessed by inducibility of sustained monomorphic VT (SMVT) during final programmed ventricular stimulation (PVS). The primary endpoints were all-cause mortality and VT/VF recurrences after ablation, respectively, stratified by the presence of NR-CTOs. The secondary endpoint was to assess the predictive effect of NR-CTOs on all-cause mortality and VT/VF recurrences in relation to other relevant prognostic factors.ResultsAt baseline, the presence of NR-CTOs was associated with higher bipolar BZ-to-total scar ratio (72.4% ± 17.9% vs. 52% ± 37.7%, p = 0.022) and more failure to eliminate the clinical VT (25% (3) vs. 0% (0), p
Details
- Language :
- English
- ISSN :
- 2297055X
- Volume :
- 10
- Database :
- Directory of Open Access Journals
- Journal :
- Frontiers in Cardiovascular Medicine
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.b9cedf418c146278aa24f864edc7f84
- Document Type :
- article
- Full Text :
- https://doi.org/10.3389/fcvm.2023.1258373