Artifact Processing Methods Influence on Intraoperative Hypotension Quantification and Outcome Effect Estimates

Conclusions The method of artifact filtering can have substantial effects on estimates of hypotension prevalence. The effect on the association between intraoperative hypotension and postoperative myocardial injury was relatively small. Nevertheless, the authors recommend that researchers carefully consider artifacts handling and report the methodology used.Editor ’s PerspectiveWhat We Already Know about This TopicElectronically collected data are increasingly used for clinical research, but include artifacts and other errorsHow best to filter electronically recorded intraoperative blood pressure remains unknownWhat This Article Tells Us That Is NewThe authors identified 38 papers describing blood pressure artifact-handling methods, and applied eight methods to nearly 3,000 anestheticsThe amount of observed hypotension at various thresholds varied considerably depending on the filtration methodInvestigators need to carefully consider artifact handling, and fully describe their methodology

Source: Anesthesiology - March 10, 2020 Category: Anesthesiology Source Type: research