[Systematic review and Meta-analysis of effect of Reduning Injection in treating acute tracheal-bronchitis]

To systematically review the effectiveness and safety of Reduning Injection in the treatment of acute tracheal-bronchitis.Four Chinese databases( CNKI,VIP,Wan Fang,Sino Med) and three English databases( Cochrane Library,Medline,Web of Science) were systematically and comprehensively retrieved. The retrieval time was from the establishment of each database to April 2019.Randomized controlled trials( RCTs) for the treatment of acute tracheal-bronchitis with Reduning Injection were collected. Two researchers independently conducted literature screening,data extraction and risk assessment for bias. Rev Man 5.3 software was used for data analysis. Fourteen studies were included,and the total sample size was 1 652 at last. Meta-analysis results show that in the aspect of total clinical effective rate,Reduning Injection was superior to ribavirin( RR = 1. 37,95%CI[1. 28,1. 47],P<0. 000 01); Reduning Injection combined with conventional therapy was better than conventional therapy alone( RR = 1. 14,95% CI[1. 09,1. 19],P <0. 000 01); Reduning Injection combined with azithromycin was better than azithromycin therapy alone( RR = 1. 21,95% CI[1. 07,1. 37],P = 0. 002). In the aspect of clinical symptoms,the time in average fever disappearance of Reduning Injection therapy was shorter than that of ribavirin therapy( MD =-1.68,95%CI[-1. 72,-1. 49],P<0. 000 01); the time in cough disappearance of Reduning Injection therapy was shorter than that of ribavirin therapy( MD =-2. 57,95%CI[-2. 91,-2. 24],P<0. 000 01); the time in lung rales disappearance,Reduning Injection therapy was superior to ribavirin therapy( MD =-2. 26,95% CI[-2. 71,-1. 80],P<0. 000 01),and Reduning Injection combined with conventional therapy was superior to conventional therapy( MD =-1. 77,95% CI[-1. 95,-1. 59],P<0. 000 01). Based on the findings,Reduning Injection can improve the total effective rate,reduce the average time of disappearance in fever,cough and lung rales,with mild adverse reactions and a low incidence. However,the quality of the literatures included is not high,it is necessary to adopt large-sample-size,rigorously designed clinical trial protocols in line with the international standards,in a bid to improve the quality of evidence.