Termination of slow‐fast atrioventricular reentrant tachycardia by a single cryoablation of the slow pathway guided by a fractionation map
Yuji Wakamatsu, Koichi Nagashima, Ryuta Watanabe, Shu Hirata, Yasuo Okumura
Abstract
This is a slow-fast atrioventricular nodal reentrant tachycardia (AVNRT) case wherein the fractionation map-guided cryoablation of the slow pathway (SP) successfully terminated the tachycardia. In this case, the Advisor™ HD Grid catheter and fractionation map in the EnSite™ X EP system with relatively high-sensitive settings were useful for detecting the target SP area. Direct AVNRT termination by cryomapping at the fractionated potential area might be a quick and safe ablation strategy, which may provide a new workflow for SP ablation.
Topics & Concepts
CryoablationMedicineAblationTachycardiaAtrioventricular reentrant tachycardiaReentrancyFractionationCardiologyCatheter ablationInternal medicineAccessory pathwayChromatographyComputer scienceProgramming languageChemistryCardiac Arrhythmias and TreatmentsAtrial Fibrillation Management and OutcomesCardiac electrophysiology and arrhythmias