“…A total of 27 RCTs (Han and Zhang, 2013;Lin, 2013;Liu, 2013;Lan, 2014;Yin, 2014;Zhou et al, 2014;He, 2015;Li and Li, 2015;Liu and Guo, 2015;Fang et al, 2016;Liu and Sun, 2016;Zhang, 2016;Zhang and Peng, 2016;Zhang, 2017a;Zhang, 2017b;Liu, 2017;Zhong, 2017;Jia, 2018;Liang, 2018;Shen, 2018;Tian et al, 2018;Ye, 2018;Lin et al, 2019;Wang et al, 2019;Xiao, 2019;Zhang and Nan, 2019;Wen et al, 2021) reported the total effective rate, including six TCMIs and seven interventions. Five TCMIs combined with PGE1 were better than PGE1 alone, including PGE1+ DCI (RR: 1.17, CI: 1.02, 1.37), PGE1+DHI (RR: 1.28, CI: 1.13, 1.46), PGE1+HQI (RR: 1.43, CI: 1.26, 1.66), PGE1+SKI (RR: 1.2, CI: 1.12, 1.3), PGE1+SMI (RR: 1.24, CI: 1.15, 1.35), and PGE1+HQI were better than PGE1+DCI (RR: 1.23, CI: 1, 1.51), which suggested advantages in improving clinical symptoms (Table 3).…”