RESUMEN
Objective To make a systematical review of the safety and efifcacy of Etomidate plus Fentanyl-class drugs and Propofol plus Fentanyl-class drugs in older patients undergoing gastroscopy. Methods We searched the Cochrane library, PubMed, Embase, China Biology Medicine (CBM), CNKI, VIP, Wanfang Database for all randomized controlled trials (RCTs) about the efifcacy of Etomidate plus Fentanyl-class drugs(Fentanyl, Sufentanil, remifentanil) in older patients undergoing gastroscopy. The quality of the studies was evaluated by the method recommended by the Jadad scale. Meta-analysis was conducted using the Cochrane Collaboration’s RevMan 5.3 software. Results 11 RCTs involving 1 535 patients were analyzed. Meta-analysis showed that patients in the Etomidate group had a lower heart rate [Weighted Mean Difference (WMD)=2.25, 95%CI(0.93, 3.56), P=0.001] and mean arterial pressure [WMD=9.09, 95%CI (7.60, 10.57), P=0.000] lfuctuation than whose of the Propofol group.The hypoxemia occurrence [O