3.1 Search strategy
A systematic literature review and subsequent meta-analysis were
performed according to preferred reporting Items for Systematic Reviews
and Meta-Analyses (PRISMA) Guidelines 20 . We
systematically searched in PubMed, EMBASE, and Medline for inherent
studies published starting from August 2021. In our meta-analysis, we
included randomized clinical trials only. Keywords used to find the
desired articles were the following: (1) statin; (2) postoperative
atrial fibrillation; (3) statin and atrial fibrillation; (4) statin and
postoperative atrial fibrillation. The search only included original
studies on human subjects published in the English language. To include
pertinent papers, two authors independently searched for additional
citations from the reference list of included relevant articles.