Practice-Changing Updates in Perioperative Medicine Literature 2020-2021: A Systematic Review

Recent literature published in a variety of multidisciplinary journals has significantly influenced perioperative patient care. Distilling and synthesizing the clinically important literature can be challenging. This review summarizes practice-changing articles in perioperative medicine from the years 2020 and 2021. Embase, Ovid, and EBM reviews databases were queried from January 2020 to December 2021. Inclusion criteria were original research, systematic review, meta-analysis, and important guidelines. Exclusion criteria were conference abstracts, case reports, letters, protocols, pediatric and obstetric articles, and cardiac surgery literature. Two authors reviewed each reference using the Distiller SR systematic review software (Evidence Partners Inc., Ottawa, Ont., Canada). A modified Delphi technique was used to identify 9 practice-changing articles. We identified another 13 articles for tabular summaries, as they were relevant to an internist's perioperative evaluation of a patient. Articles were selected to highlight the clinical implications of new evidence in each field. We have also pointed out limitations of each study and clinical populations where they are not applicable.