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Dexmedetomidine for the prevention of postoperative delirium in elderly patients undergoing noncardiac surgery: A meta-analysis of randomized controlled trials

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  • Hai Zeng
  • Zunjiang Li
  • Jianbin He
  • Wenbin Fu

Abstract

Background: Postoperative delirium (POD) among the elderly population that undergoes noncardiac surgery is significantly associated with adverse clinical outcomes. We conducted this meta-analysis to evaluate the effectiveness and safety of dexmedetomidine for the prophylaxis of POD among the elderly population after noncardiac surgery. Methods: We searched Embase, PubMed, and the Cochrane Library from inception date to March 2019 for randomized controlled trials (RCTs) that compared dexmedetomidine and placebo for the prevention of POD and evaluated the major cardiovascular outcomes among elderly people after noncardiac surgery. Two authors independently screened the studies and extracted data from the published articles. The main outcome was the incidence of POD. The secondary outcomes included the occurrence of bradycardia, hypotension, hypertension, tachycardia, myocardial infarction, stroke, hypoxaemia, and all-cause mortality. Results: A total of 6 RCTs with 2102 participants were included. Compared with placebo, dexmedetomidine significantly reduced the prevalence of POD (RR = 0.61, 95% CI 0.34–0.76, P = 0.001, I2 = 66%), and the risk of tachycardia (RR = 0.48, 95% CI 0.30–0.76, P = 0.002, I2 = 0%), hypertension (RR = 0.59, 95% CI 0.44–0.79, P

Suggested Citation

  • Hai Zeng & Zunjiang Li & Jianbin He & Wenbin Fu, 2019. "Dexmedetomidine for the prevention of postoperative delirium in elderly patients undergoing noncardiac surgery: A meta-analysis of randomized controlled trials," PLOS ONE, Public Library of Science, vol. 14(8), pages 1-15, August.
    • Handle: RePEc:plo:pone00:0218088
    DOI: 10.1371/journal.pone.0218088
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    References listed on IDEAS

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    1. Jun Geng & Ju Qian & Hao Cheng & Fuhai Ji & Hong Liu, 2016. "The Influence of Perioperative Dexmedetomidine on Patients Undergoing Cardiac Surgery: A Meta-Analysis," PLOS ONE, Public Library of Science, vol. 11(4), pages 1-14, April.
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    Cited by:

    1. Michał P. Pluta & Magdalena Dziech & Piotr F. Czempik & Anna J. Szczepańska & Łukasz J. Krzych, 2020. "Antipsychotic Drugs in Prevention of Postoperative Delirium—What Is Known in 2020?," IJERPH, MDPI, vol. 17(17), pages 1-14, August.

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