We conducted electronic searches in MEDLINE and EMBASE from inception to March 2020 (SupplementalAppendices S3 and S4). The search was reviewed by a librarian. We used controlled vocabulary including Medical Subject Heading terms and keywords for perioperative AF, noncardiac surgery, stroke, and mortality. Reference lists of eligible records were screened for additional studies. Abstracts were also included in the meta-analysis.
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