ArticlePostepy w kardiologii interwencyjnej = Advances in interventional cardiology2026
Early changes in depolarization and repolarization after catheter ablation of ventricular tachycardia in ischemic cardiomyopathy.
Article in Postepy w kardiologii interwencyjnej = Advances in interventional cardiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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1 citing paper in PubMed.
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5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Introduction: The development of ventricular tachycardia (VT) has been shown to be associated with depolarization-repolarization parameters. However, the effect of radiofrequency ablation (RFA) applied for VT on depolarization-repolarization parameters remains unknown. Aim: This study aimed to investigate changes in measurable depolarization-repolarization parameters following successful RFA in patients with ischemia-induced VT. Material and methods: Ninety-six patients with ischemic cardiomyopathy who underwent successful RFA for VT between 2018 and 2025 were included. Twelve-lead electrocardiograms (ECGs) were recorded before and after (72 h) the RFA. From both ECGs, PR and QRS durations, QT, corrected QT interval (QTc), Tp-Te intervals, Tp-Te/QT ratio, and QRS-T angle were measured. In addition, left ventricular ejection fraction (LVEF) was measured before and after RFA. Early changes in ECG parameters and LVEF due to RFA were evaluated. Results: The mean age of the study population was 65.8 ±10.6 years, and 83% of the patients were male. Analysis of ECG parameters showed significant differences before and after VT ablation in QT, QTc, Tp-Te intervals, Tp-Te/QT ratio, and QRS-T angle ( Conclusions: Our findings demonstrated that successful RFA therapy in patients with ischemia-induced VT has favorable early effects on ventricular depolarization-repolarization parameters. This information provides a novel and important contribution to the literature on VT ablation.
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