Work

Impedance‐Based Contact Visualization for PulseSelect Pulmonary Vein Isolation: A Single‐Center Feasibility Study

Year: 2026

Type: article

Abstract: ABSTRACT Background PulseSelect pulmonary vein isolation (PVI) lacks a dedicated contact indicator. Methods We retrospectively compared 63 patients undergoing PVI before and after EnSite Contact Index (CI) implementation. Because electrical isolation does not confirm lesion transmurality, post‐procedural unipolar electrograms (u‐EGMs) were assessed as acute surrogate markers. Results CI guidance was associated with more applications, shorter fluoroscopy, and in an exploratory analysis of analyzable patients, fewer residual high‐voltage u‐EGMs (1/20 vs. 8/24; p = 0.027). No complications occurred. Conclusions CI‐guided PVI was feasible; these procedural and acute electrophysiological associations require prospective validation.

Source: Journal of Arrhythmia

DOI: 10.1002/joa3.70507

Authors: Masahiro Mizobuchi, Junya Matsumoto, Kaito Oka, Hotaka Takemura, Tomoki Yamashita, Shigeru Nakamura

Institution: Kyoto Katsura Hospital

Language: English

Topic: Cardiac Arrhythmias and Treatments

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,540