Impact of baseline-pool local impedance on lesion formation using a local impedance-sensing catheter: Lessons from a porcine experimental model.

ABSTRACT:

Background

Impact of baseline-pool local impedance (BP-LI) on the lesion size remains unclear.

Methods

Lesion size in the porcine left ventricular myocardium was evaluated using the STABLEPOINT™ catheter across various ablation settings and BP-LIs (100, 140, and 180 ohms).

Results

A total of 184 lesions were created with different durations (15/30/60 s) at 30 watts or with different powers (30/40/50 W) for 15 s. Lesion depth became deeper (2.8/3.0/3.6 mm at 15 s; p = .007, 4.0/4.9/4.6 mm at 30 s; p = .004, and 5.9/5.5/5.2 mm at 60 s; p = .710) and lesion width wider (5.8/6.3/7.6 mm at 15 s; p = .002, 7.0/8.9/8.9 mm at 30 s; p < .001, and 10.5/9.4/10.5 mm at 60 s; p = .262) as the BP-LI increased under 30 W. Similarly, the lesi

SUBMITTER: Fukaya H 

PROVIDER: S-EPMC11822644 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature