• Yuan-Tang Xi, Li-Yi Yuan, Si-Ting Xu, Xiang-Yun Liu, and Wei Wu.
• the First School of Clinical Medicine,Guangzhou University of Traditional Chinese Medicine Guangzhou 510405,China.
• Zhongguo Zhong Yao Za Zhi. 2019 Jun 1; 44 (12): 2616-2626.

To systemically evaluate the efficacy and safety of salvianolate intravenous drip in combination with hydration against contrast-induced nephropathy( CIN),and guide clinical medication. Chinese and English databases( PubMed,EMbase,the Cochrane Library,CBM,VIP,Wan Fang database,CNKI) were retrieved to collect the randomized controlled trials( RCTs) about the efficacy of salvianolate intravenous drip in combination with hydration( trial group) vs routine hydration( control group) in the prevention of contrastinduced nephropathy. The methodological quality of the RCTs was evaluated by using the Cochrane 5. 1. 0 Bias Risks Assessment Tool.The data were extracted and Meta-analysis was conducted by Reviewer Manager 5. 3. Egger's test and non-parametric clipping method were used to evaluate publication bias. A total of 9 RCTs with 2 186 participants were included. Resultsof Meta-analysis showed that the incidence of contrast-induced nephropathy of trial group was significantly higher than that of control group( RR = 0. 46,95% CI[0. 35,0. 59],P<0. 001). Subgroup analysis showed that the incidences of CIN in patients with acute coronary syndrome( ACS) undergoing PCI,in patients with the average age≥65 years,in patients who received mean contrast volume ≥200 m L,in patients with serum creatinine( Scr) ≥ 80 μmol,or in patients who received intraoperative administration of salvianolate or PCI were higher than those in control group,with statistically significant differences( P<0. 05). The experimental group was superior to the control group in improving the indexes of renal function after operation,and the difference was statistically significant( P<0. 05). No study reported the incidence of adverse reactions( ADRs). The funnel plots of the incidence of CIN showed potential publication bias. The results of Egger's linear regression showed that there was certain publication bias. Sensitivity analysis,funnel plot,and " trim and fill" showed that the results of this study were stable and reliable. Salvianolate combined with routine hydration showed definite clinical efficacy in the prevention of contrast-induced nephropathy. However,exact conclusion should be further verified by additional high-quality,multi-centre,and large-scale RCT studies.

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