2.1 Search strategy
Two investigators (RY and NP) independently searched for published RCTs
indexed in PubMed and EMBASE from inception to December 2020 using the
search terms including: “atrial fibrillation”, “ablation”, and
“initial” as described in supplementary file 1. Only articles in
English were included. An additional manual search for potential
additional pertinent studies was performed using the references from
retrieved articles. Any conflict or discrepancy was resolved by a third
author (LN)