Mapping Atrial Fibrillation After Surgical Therapy to Guide Endocardial Ablation.

ABSTRACT:

Background

Surgical ablation for atrial fibrillation (AF) can be effective, yet has mixed results. It is unclear which endocardial lesions delivered as part of hybrid therapy' will best augment surgical lesion sets in individual patients. We addressed this question by systematically mapping AF endocardially after surgical ablation and relating findings to early recurrence, then performing tailored endocardial ablation as part of hybrid therapy.

Methods

We studied 81 consecutive patients undergoing epicardial surgical ablation (stage 1 hybrid), of whom 64 proceeded to endocardial catheter mapping and ablation (stage 2). Stage 2 comprised high-density mapping of pulmonary vein (PV) or posterior wall (PW) reconnections, low-voltage zones (LVZs), and potential localized AF drive

SUBMITTER: Bhatia NK 

PROVIDER: S-EPMC9839337 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature