[Systematic review of Chuankezhi injection for treating acute exacerbation of chronic obstructive pulmonary disease].

To evaluate the inflammatory factors, the pulmonary function, the efficiency and the safety of Chuankezhi injection for treating acute exacerbation of chronic obstructive pulmonary disease (AECOPD). The randomized controlled trials (RCTs) on Chuankezhi injection for treating AECOPD were collected from 7 databases (PubMed, CNKI, et al) between inception to November 2016. Two reviewers independently screened literature and extracted the data according to the inclusion and exclusion criteria, and assessed methodological quality of included studies according to the criteria from Cochrane Reviewer's Handbook 5.3. Then, Meta-analysis was conducted by using RevMan 5.3 software. A total of 13 RCTs involving 1 016 patients were included. Meta-analysis results indicated that Chuankezhi group was superior to the control group in the clinical effectiveness [RR=1.15, 95% CI(1.06, 1.23), P=0.000 3], improved pulmonary functions including forced expiratory volume in one second (FEV1) [MD=0.21, 95% CI (0.15, 0.27), P<0.000 01], forced vital capacity (FVC) [MD=0.36, 95% CI（0.15, 0.56）, P=0.000 6], the first seconds breathing volume percentage of forced vital capacity (FEV1/FVC) [MD=6.85, 95% CI（4.68, 9.02）, P<0.000 01] and decreased the level of inflammatory factors including interleukin-6 (IL-6) [MD=-6.35, 95% CI (-8.23, -4.47), P<0.000 01], IL-8 [MD = -2.00, 95% CI ( -3.13, 0.87), P=0.000 5], tumor necrosis factor-α (TNF-α) [ MD=-2.79, 95% CI (-4.61,-0.97), P=0.003]. Besides, there were no frequently happened or serious adverse reactions observed in Chuankezhi group. The results showed that Chuankezhi injection could improve the efficiency and the pulmonary function, reduce inflammation for AECOPD with a high safety on the basis of routine symptomatic treatment. However, due to limited quantity and quality of the included studies, the conclusion above should be further verified by conducting more high quality RCTs.