Intra-spline bipolar electrograms yielded significantly higher peak frequencies (236 vs 185 Hz, p<0.01) and lower potential voltages (0.47 vs 0.48 mV, p<0.01) than cross-spline electrograms.
Observational (n=20)
Does intra-spline bipolar electrogram mapping improve mapping precision compared to cross-spline bipolar electrograms in AF patients post-PVI?
Intra-spline bipolar electrograms enhance mapping precision by reducing far-field interference compared to conventional cross-spline electrograms during pentaspline pulsed field ablation.
Tasa de eventos absoluta: 236% vs 185%
valor p: p=<0.01
ABSTRACT 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.
Kanda et al. (Mon,) conducted a observational in Atrial Fibrillation (n=20). Intra-spline bipolar electrograms (ISBEs) vs. Conventional cross-spline bipolar electrograms (CSBEs) was evaluated on Peak frequency (Hz) (p=<0.01). Intra-spline bipolar electrograms yielded significantly higher peak frequencies (236 vs 185 Hz, p<0.01) and lower potential voltages (0.47 vs 0.48 mV, p<0.01) than cross-spline electrograms.