Ventricular tachycardia terminates via prepotential exit block caused by local tissue refractoriness, which requires a critical conduction time for premature ventricular complexes to manifest.
Patients with idiopathic premature ventricular complexes (PVCs) and ventricular tachycardias
Mapping and ablation targeting discrete prepotentials within the aortic sinuses of Valsalva
Termination of ventricular tachycardia
Discrete prepotentials in the aortic sinuses of Valsalva are reliable targets for ablation of idiopathic PVCs and VT, with exit block demonstrating the critical conduction time required.
Discrete prepotentials (PPs) mapped within the aortic sinuses of Valsalva are considered reliable targets for the ablation of idiopathic premature ventricular complexes (PVCs) and ventricular tachycardias. A critical conduction time is required for the PVC to manifest, as evidenced by a distinct isoelectric segment between the discrete PPs and the ventricular electrograms, consistent with the limitations imposed by the local refractoriness of the tissue at the exit site.
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Ozeke et al. (Sun,) reported a other. Ventricular tachycardia terminates via prepotential exit block caused by local tissue refractoriness, which requires a critical conduction time for premature ventricular complexes to manifest.
www.synapsesocial.com/papers/69df2a4be4eeef8a2a6af7b6 — DOI: https://doi.org/10.19102/icrm.2026.17034
Ozcan Ozeke
Dursun Aras
Serkan Topaloglu
Bilkent University
Sağlık Bilimleri Üniversitesi
Istanbul Medipol University
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