Evaluating the Precision of Intra-Spline Bipolar Potentials With Pentaspline Pulsed Field Ablation Catheter
Takashi Kanda1, Hitoshi Minamiguchi1, Riku Iwami1
1Cardiovascular Division Advanced Cardiac Rhythm Management Center, Osaka Keisatsu Hospital Osaka Japan.
Background:
Conventional cross-spline bipolar electrograms (CSBEs) with the pentaspline pulsed field ablation (PFA) catheter suffer from far-field interference. Intra-spline bipolar electrograms (ISBEs) can provide more localized data. We evaluated ISBE efficacy in enhancing mapping precision.
Methods:
In 20 AF patients post-PVI, left atrial maps were constructed. We compared 13 533 CSBEs and 8097 ISBEs for voltage and peak frequency, excluding noise/scar potentials.
Results:
ISBEs yielded significantly higher peak frequencies (median: 236 vs. 185 Hz, p < 0.01) and lower potential voltages (0.47 vs. 0.48 mV, p < 0.01) than CSBEs.
Conclusions:
ISBEs enhance mapping precision by reducing far-field interference and providing localized electrophysiological data during pentaspline PFA.
More Related Videos
12:45Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
Published on: December 11, 2017
10:46Non-fluoroscopic Catheter Tracking for Fluoroscopy Reduction in Interventional Electrophysiology
Published on: May 26, 2015