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Anesthesiology. 2019 Mar;130(3):367-384. doi: 10.1097/ALN.0000000000002551.

The American Society of Anesthesiologists Practice Parameter Methodology.

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From the Department of Anesthesia and Critical Care, University of Chicago Medicine, Chicago, Illinois (J.L.A.) the Committee on Standards and Practice Parameters, American Society of Anesthesiologists, Schaumburg, Illinois (J.L.A., R.T.C.).


The methodology used during the development of American Society of Anesthesiologists evidence-based practice parameters, from conceptualization through final adoption of the documents, is described. Features of the methodology include the literature search, review and analysis, survey development and application, and consolidation of the full body of evidence used for preparing clinical practice recommendations. Anticipated risks of bias, validation of the process, and the importance of the documents for clinical use are discussed.

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