Predictors of long-term ventricular tachyarrhythmia recurrence after combined endo-epicardial ablation in patients with structural heart disease
| Autor: | K. A. Simonova, V. S. Orshanskaya, V. K. Lebedeva, S. V. Garkina, T. A. Lyubimtseva, M. A. Vander, Yu. V. Miller, R. B. Tatarsky, A. V. Kamenev, M. A. Naymushin, D. S. Lebedev, E. N. Mikhaylov |
|---|---|
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Arrhythmology. 29:17-29 |
| ISSN: | 2658-7327 1561-8641 |
| Popis: | Purpose. To identify predictors of ventricular tachycardia (VT) recurrence after endo-epicardial ablation in patients with structural heart disease.Methods. A prospective observational study included 39 patients with structural heart disease and indications for catheter ablation of ventricular tachyarrhythmia. Endo- and epicardial electroanatomical mapping of the ventricular myocardium and ablation of abnormal electrical activity areas were performed. Clinical, ECG characteristics, and voltage maps of bipolar potentials (limits of scar detection 1.5 mV) and unipolar signals (limits 9.0 mV, respectively) on endo- and epicardial surfaces were evaluated. Intraprocedurally, the procedure was considered effective when no VT was inducible; partially effective - when only clinical VT(s) was/were non-inducible. Scheduled patient visits or remote monitoring were performed at 6, 12 and 24 months, and then annually.Results. The mean age of the patients was 49.5±15.7 years (34 men and 5 women). VT recurrences at 6 months were more often detected in non-ischemic cardiomyopathy patients, in subjects with non-paroxysmal atrial fibrillation (42.9% vs. 7.4%), with a lower VT-QRS amplitude in lead III (0.6 [0.4;1.07] versus 1.28 [0.99; 1.53] mV), and when epicardial “scar” area prevailed over endocardial, PConclusion. In a heterogeneous group of patients, clinical and electrophysiological factors associated with VT recurrence have been identified at various follow-up periods after endo-epicardial ablation. Electrical storm ablation is an independent predictor of VT recurrence in the long-term, up to 5 years of follow-up. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|