• Int. J. Clin. Pract. · Oct 2019

    Meta Analysis

    Association of intra-operative hypotension with acute kidney injury, myocardial injury and mortality in non-cardiac surgery: A meta-analysis.

    • Ran An, Qian-Yun Pang, and Hong-Liang Liu.
    • Department of Anesthesiology, Chongqing University Cancer Hospital/Chongqing Cancer Institute/Chongqing Cancer Center, Chongqing City, 400030, China.
    • Int. J. Clin. Pract. 2019 Oct 1; 73 (10): e13394.

    BackgroundIntra-operative hypotension might induce poor postoperative outcomes in non-cardiac surgery, and the relationship between the level or duration of Intra-operative hypotension (IOH) and postoperative adverse events is still unclear. In this study, we performed a meta-analysis to determine how IOH could affect acute kidney injury (AKI), myocardial injury and mortality in non-cardiac surgery.MethodsWe searched PubMed (Medline), Embase, Springer, The Cochrane Library, Ovid and Google Scholar, and retrieved the related clinical trials on intra-operative hypotension and prognosis in non-cardiac surgery.ResultsFifteen observational studies were included. The meta-analysis showed that in non-cardiac surgery, intra-operative hypotension (mean arterial pressure [MAP]) <60 mm Hg for more than 1 minute was associated with an increased risk of postoperative acute kidney injury(AKI) [1-5 minutes: odds ratio (OR) = 1.13, 95% CI (1.04, 1.23), I2  = 0, P = .003; 5-10 minutes: OR = 1.18, 95% CI (1.07, 1.31), I2  = 0, P = .001; >10 minutes: OR = 1.35, 95% CI (1.1, 1.67), I2  = 52.6%, P = .004] and myocardial injury [1-5 minutes: OR = 1.16, 95% CI (1.01, 1.33), I2  = 30.6%, P = .04; 5-10 minutes: OR = 1.34, 95% CI (1.01, 1.77), I2  = 70.4%, P = .046; >10 minutes: OR = 1.43, 95% CI (1.18, 1.72), I2  = 39.4%, P < .0001]. Intra-operative hypotension (MAP < 60 mm Hg) for 1-5 minutes was not associated with postoperative 30-day mortality [OR = 1.15, 95% CI (0.95, 1.4), I2  = 0, P = .154], but intra-operative hypotension (MAP < 60 mm Hg) for more than 5 min was associated with an increased risk of postoperative 30-day mortality [OR = 1.11, 95% CI (1.06, 1.17), I2  = 51.9%, P < .0001].ConclusionIntra-operative hypotension was associated with an increased risk of postoperative AKI, myocardial injury and 30-day mortality in non-cardiac surgery. Intra-operative MAP < 60 mm Hg more than 1 minute should be avoided.© 2019 John Wiley & Sons Ltd.

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