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

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.