[Systematic evaluation and trial sequential analysis of Tianma Gouteng Granules combined with anti-hypertensive drugs in treatment of essential hypertension].

To systematically evaluate the efficacy and safety of Tianma Gouteng Granules combined with conventional anti-hypertensive drugs in the treatment of essential hypertension. The clinical randomized controlled trials(RCTs) on the treatment of essential hypertension with Tianma Gouteng Granules combined with conventional anti-hypertensive drugs were searched in PubMed, EMbase, Cochrane Library, VIP, CNKI, Wanfang, SinoMed since the establishment of the databases to April 2020 based on inclusion and exclusion criteria, and Meta-analysis was conducted by using RevMan 5.3 software. A total of 15 RCTs were included, involving a total of 1 508 patients. Meta-analysis results showed that Tianma Gouteng Granules combined with conventional Western medicine were supe-rior to the control group in reducing systolic blood pressure(MD=-10.24, 95%CI[-13.54,-6.95], P<0.000 01), diastolic blood pressure(MD=-5.33, 95%CI[-7.21,-3.45], P<0.000 01), improving the clinical efficacy of patients(RR=1.22, 95%CI[1.15, 1.28], P<0.000 01) and curative effect of traditional Chinese medicine syndrome(RR=1.26, 95%CI[1.02, 1.57], P=0.04), increasing nitric oxide content(MD=9.59, 95%CI[7.23, 11.96], P<0.000 01), reducing endothelin-1(MD=-10.74, 95%CI[-15.74,-5.75], P<0.000 1), tumor necrosis factor(MD=-0.28, 95%CI[-0.36,-0.19], P<0.000 01), and interleukin-6(MD=-39.71, 95%CI[-43.40,-36.03], P<0.000 01). There was no statistically significant difference between the test group and the control group in the incidence of adverse reactions. No liver and kidney dysfunction occurred. The results of the subgroup analysis showed that the effect of Tianma Gouteng Granules combined with ARB drugs was more obvious in reducing the systolic and diastolic pressure. Trial sequential analysis showed that the studies accumulatively included for clinical efficacy crossed the traditional threshold and the TSA threshold, further affirming its clinical efficacy. The clinical application of Tianma Gouteng Granules combined with conventional Western medicine in the treatment of primary hypertension and accompanying symptoms has clear efficacy and certain safety, so it is recommended for clinical application.