Major Findings
We have the following major findings in the study: (1) Epicardial fibers
was responsible for over half of the acute PVR in this study, which
required a longer waiting period than endocardial gap. (2) Two typical
distribution patterns of AEPVR were discovered, including epicardial
reconnection over the ablation line on the posterior wall, and late
manifestation of ICB conduction. (3) AEPVR demonstrated similar
characteristics as delayed epicardial PVR in repeat procedures. (4)
Presence of AEPVR was significantly associated with multiple ablation
parameters.