ObjectiveTo investigate the current situation of randomized controlled trials (RCTs) of thrombin like enzyme research and the ability to provide a reliable basis for the clinical practice. MethodsRCTs identified from four Chinese databases up to the year 2012 were assessed according to international standard, including SinoMed (1978-2012), CNKI (1979-2012), Wanfang Data (1986-2012), and VIP (1989-2012). ResultsA total of 2358 articles were searched and 53 RCTs were identified. The results showed that the quality of these articles was not high enough to meet the needs of clinical practice in China. ConclusionIn China, current quantity and quality of RCTs of thrombin like enzyme can not meet the need of clinical practice. In order to improve the prevention and treatment of hemorrhagic diseases, and surgical bleeding, especially for patients lacking clotting factor, more high-quality RCTs are required.
ObjectiveTo evaluate the efficacy and safety of all kinds of hemocoagulase on operative incisions. MethodsDatabases including Web of Science, MEDLINE, EMbase, EBSCO, PubMed, CNKI, WanFang Data and VIP were electronically searched to collect randomized controlled trials (RCTs) about hemocoagulase on operative incisions from the inception to June 20th, 2015. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then, meta-analysis was performed by RevMan 5.2 software. ResultsA total of 16 RCTs involving 1 867 patients were included. The results of meta-analysis showed that, compared with the control group, the hemostatic time (MD=-37.84, 95%CI -52.72 to -22.96, P<0.000 01), blood loss volume per unit area (MD=-0.09, 95%CI -0.10 to -0.07, P<0.000 01), PT of the first postoperative day (MD=-0.37, 95%CI -0.65 to -0.09, P=0.009) were significantly shorter in the hemocoagulase group. However, no significant differences were found in APTT, TT and FIB between two groups. ConclusionHemocoagulase can reduce hemostatic time and blood loss volume in surgical incisions. Due to the limited quantity and quality of the included studies, the above conclusion needs to be further verified by more high quality studies.