Outcome of patients with idiopathic ventricular fibrillation and correlation with ECG markers of early repolarization.

Autor: Rath, Benjamin, Willy, Kevin, Ellermann, Christian, Leitz, Patrick, Köbe, Julia, Reinke, Florian, Lange, Philipp Sebastian, Frommeyer, Gerrit, Eckardt, Lars
Zdroj: Clinical Research in Cardiology; Dec2023, Vol. 112 Issue 12, p1748-1753, 6p
Abstrakt: Background: Early repolarization pattern (ERP) has been associated with idiopathic ventricular fibrillation (IVF) and with cardiovascular mortality in the general population. As there is limited data about long- term outcome of IVF, the aim of our study was to observe ventricular arrhythmia (VA) recurrences in these patients and to identify a possible correlation of VA with ECG markers of early repolarization. Methods and results: We investigated 56 consecutive IVF patients who received an implantable cardioverter-defibrillator for secondary prevention. ERP was defined as a J-point elevation ≥ 0.1 mV in two or more contiguous inferior or lateral leads. Markers of early repolarization were present in 32.1% of cases with a preponderance of QRS slurring (77.8%). During a mean follow-up of 41.2 months, 11 patients (19.6%) received in total 18 adequate ICD-therapies. VF was most the common cause for ICDtherapy (61.1%) but monomorphic VT also occurred in four patients. Presence of ERP was associated with a significant trend towards arrhythmia recurrences. 38.9% patients with ERP received appropriate ICD-therapies whereas only 10.5% of patients without ERP had arrhythmia recurrence (p = 0.05). Inappropriate ICD-therapies occurred in seven patients (12.5%) with a non-significant trend towards a higher incidence in patients with a transvenous ICD (p = 0.15). Conclusion: A significant correlation between ERP and VA recurrences in patients with IVF could be observed. Though monomorphic VA also play a role in the studied IVF-population, our data support the use of the S-ICD in this collective. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index