2.1 Search strategy
Relevant studies were searched in the Medline, PubMed, Embase, the Cochrane Library, and Elsevier’s ScienceDirect databases. Reports published in non-English languages were excluded from the search. The search strategy employed the following relevant key words and medical subject heading terms: Atrial fibrillation; AF; Radiofrequency; RF; Catheter ablation; High power; High-power; High-power shorter-duration; HPSD; Low power; Low-power long duration; LPLD and conventional power. The literature search was updated in August 12, 2020.