• Xiao-Lu Nie, Hao Shen, Yan-Ming Xie, Jing Hu, Yue-Lun Zhang, and Yuan-Yuan Li.
• Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing 100191, China. niexiaolu@126.com
• Zhongguo Zhong Yao Za Zhi. 2012 Sep 1; 37 (18): 2768-73.

ObjectiveTo assess the efficacy and safety of Dengzhanxixin injection for unstable angina pectoris.MethodAll clinical studies of Dengzhanxixin injection for unstable angina pectoris (UAP) were searched from Cochrane library, Medline, EM-base, CBM, CNKI, Wanfang and VIP. Quality assessment and information extraction were done by two independent screening . The quality of the included documents was evaluated by the Cochrane Collaboration's tool for assessing risk of bias and allocation concealment. Revman 5.1.4 software was used for data analysis.ResultA total of 17 randomized controlled trials were included (1 644 patients), in which, only 2 studies were true RCT, 1 study used single blind method, while other studies did not mention allocation concealment, blind and loss-up information. Meta-analysis showed that the Dengzhanxixin injection group was better than the conventional treatment group in efficiency (OR = 3.54, 95% CI [2.60-4.82]) and ECG (OR = 2.36, 95% CI[1.88-2.96]). Researches with ADR/AE information of Dengzhanxixin injection showed that the symptoms of ADR/AE were slight. This study may exist publication bias.ConclusionDengzhanxixin injection on the basis of conventional treatment can improve the efficacy of the treatment of unstable angina pectoris. However, due to the sample size of included studies were small and of lower quality, conclusions above still need high-qualitied randomized, double-blind, controlled trials be confirmed.

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