Heart rate variability as a predictor of successful catheter-guided pulmonary vein isolation for atrial fibrillation.

ABSTRACT:

Background

This retrospective observational study investigated the relationship between heart rate variability (HRV) and atrial fibrillation (AF) recurrence after pulmonary vein isolation (PVI) by cryoballoon or radiofrequency ablation (RF).

Methods

We enrolled 497 patients who underwent PVI using first-generation cryoballoon (CB1), second-generation cryoballoon (CB2), or RF. We analyzed HRV as a surrogate for modulation of the intrinsic autonomic nervous system using 24‑h Holter recordings 1 or 2 days after the procedure and compared the recurrence and non-recurrence group with regard to ablation methods. Furthermore, we calculated recurrence-free survival (RFS) below/over HRV cut-off values for the whole study population and separately for each ablation method.

Results<

SUBMITTER: Drexler M 

PROVIDER: S-EPMC10917838 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature