• Jaap Schuurmans, Benthe T B van Rossem, Santino R Rellum, Johan T M Tol, Vincent C Kurucz, Niels van Mourik, Ward H van der Ven, Denise P Veelo, Jimmy Schenk, and VlaarAlexander P JAPJAmsterdam UMC location University of Amsterdam, Intensive Care, Meibergdreef 9, Amsterdam, The Netherlands.Amsterdam UMC location University of Amsterdam, Laboratory of Experimental Intensive Care and Anesthesiology, Meibergdreef 9, A.
• Amsterdam UMC location University of Amsterdam, Anesthesiology, Meibergdreef 9, Amsterdam, The Netherlands.
• Intensive Care Med. 2024 Apr 1; 50 (4): 516525516-525.

PurposeThe aim of this study is to provide a summary of the existing literature on the association between hypotension during intensive care unit (ICU) stay and mortality and morbidity, and to assess whether there is an exposure-severity relationship between hypotension exposure and patient outcomes.MethodsCENTRAL, Embase, and PubMed were searched up to October 2022 for articles that reported an association between hypotension during ICU stay and at least one of the 11 predefined outcomes. Two independent reviewers extracted the data and assessed the risk of bias. Results were gathered in a summary table and studies designed to investigate the hypotension-outcome relationship were included in the meta-analyses.ResultsA total of 122 studies (176,329 patients) were included, with the number of studies varying per outcome between 0 and 82. The majority of articles reported associations in favor of 'no hypotension' for the outcomes mortality and acute kidney injury (AKI), and the strength of the association was related to the severity of hypotension in the majority of studies. Using meta-analysis, a significant association was found between hypotension and mortality (odds ratio: 1.45; 95% confidence interval (CI) 1.12-1.88; based on 13 studies and 34,829 patients), but not for AKI.ConclusionExposure to hypotension during ICU stay was associated with increased mortality and AKI in the majority of included studies, and associations for both outcomes increased with increasing hypotension severity. The meta-analysis reinforced the descriptive findings regarding mortality but did not yield similar support for AKI.© 2024. The Author(s).

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