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Effect of remote ischemic preconditioning on patients undergoing elective major vascular surgery: A systematic review and meta-analysis.

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BACKGROUND Whether remote ischemic preconditioning (RIPC), through several cycles of ischemia-reperfusion, can generate endogenous protective substances to protect patients undergoing elective major vascular surgery remains unclear. The results derived from… Click to show full abstract

BACKGROUND Whether remote ischemic preconditioning (RIPC), through several cycles of ischemia-reperfusion, can generate endogenous protective substances to protect patients undergoing elective major vascular surgery remains unclear. The results derived from many randomized controlled trials (RCTs) have been discrepant. METHODS PubMed (1966 to May 2018) and Embase (1966 to May 2018) databases were searched to identify all published RCTs that assessed the effect of RIPC in patients undergoing elective major vascular surgery. Then, we performed a systematic review and meta-analysis to merge the outcomes of RIPC procedures from each RCT, which included all-cause mortality, myocardial infarction (MI), acute kidney injury (AKI), and (or) new-onset arrhythmia. RESULTS A total of 909 patients were enrolled from 10 eligible studies that were conducted from 2007 through 2016. A fixed effect model was utilized in this study to pool each effect size. Pooled analyses of all RCTs showed that RIPC did not reduce the incidence of all-cause mortality (pooled RR 1.36, 95% CI 0.63 to 2.92; p = 0.56), MI (pooled RR 0.77, 0.48 to 1.22; p = 0.38), AKI (pooled RR 0.93, 0.68 to 1.27; p = 0.10), or new-onset arrhythmia (pooled RR 1.47, 0.83 to 2.60; p = 0.52) compared with the control treatment. The publication bias detected by Begg's test was low. CONCLUSION There is no prominent evidence to support the hypothesis that RIPC can provide perioperative protection to patients undergoing elective major vascular surgery. Therefore, the routine use of RIPC to reduce the incidence of perioperative complications of these operations may not be recommended.

Keywords: surgery; undergoing elective; patients undergoing; major vascular; vascular surgery; elective major

Journal Title: Annals of vascular surgery
Year Published: 2019

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