• Rongzan Zhang, Quan Lu, and Younong Wu.
• Department of Anesthesiology, Fenghua People's Hospital, Ningbo, Zhejiang, China.
• Surg Laparosc Endosc Percutan Tech. 2018 Jun 1; 28 (3): 153-158.

IntroductionMidazolam and propofol are both used for sedation in gastrointestinal endoscopy. We conducted a systematic review and meta-analysis to compare the efficacy and safety of midazolam and propofol in gastrointestinal endoscopy.Materials And MethodsPubMed, EMbase, Web of science, EBSCO, and Cochrane library databases were systematically searched. Randomized controlled trials assessing the effect of midazolam versus propofol on sedation in gastrointestinal endoscopy are included. Two investigators have independently searched for articles, extracted data, and assessed the quality of included studies. This meta-analysis was performed using the random-effect model.ResultsFive randomized controlled trials involving 552 patients were included in the meta-analysis. Overall, compared with midazolam sedation during gastrointestinal endoscopy, propofol sedation results in higher endoscopist satisfaction scores during gastrointestinal endoscopy than midazolam [standard mean difference (Std. MD)=-0.71; 95% confidence interval (CI)=-1.05 to -0.37; P<0.0001), but the comparison shows no remarkable influence on patient satisfaction scores between midazolam and propofol (Std. MD=-0.34; 95% CI=-0.88 to 0.20; P=0.21), procedure time (Std. MD=0.14; 95% CI=-0.13 to 0.42; P=0.31), hypoxia [risk ratio (RR)=0.86; 95% CI=0.53-1.38; P=0.53), and bradycardia (RR=1.05; 95% CI=0.54-2.06; P=0.89). In addition, propofol shows higher incidence of hypotension than midazolam (RR=0.58; 95% CI=0.34-0.99; P=0.04).ConclusionsWhen compared with midazolam sedation for gastrointestinal endoscopy, propofol sedation results in higher endoscopist satisfaction scores, but may increase the incidence of hypotension.

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