[Meta-analysis of the therapeutic value of plasma exchange simple or combined with dual plasma molecular adsorption system for liver failure].

To systematically analyze the serological parameters, effective rate and survival rate of patients with liver failure after simple plasma exchange treatment and half-dose plasma exchange combined with dual plasma molecular adsorption system. Randomized controlled trials published in the full-text articles of Pubmed, Embase, Web of Science, The Cochrane Library, Wanfang, Weipu, CNKI, and other journals from June 2020 were retrieved. Revman 5.3 software was used to conduct the meta-analysis after the literature quality evaluation. A total of 10 studies involving 884 cases were selected. Among them, 425 and 459 were treated with combination and simple plasma exchange therapy. The levels of TBIL (=-28.58, 95% : -37.42～-19.75, <0.000 01) and ALB (=-2.00, 95%:-2.61～-1.39, <0.000 01) were lower in the combined treatment group than those in the simple treatment group, and the difference was statistically significant. HGB (=5.96, 95%: 1.52-10.40, =0.009), effective rate (=1.92, 95%: 1.29-2.85, =0.001), and survival rate (=1.63, 95%: 1.13-2.36, =0.009) were higher in the combined treatment group than those in the simple treatment group, and the difference was statistically significant.The two treatment methods had good curative effects for the improvement of ALT, AST, DBIL, PTA, INR, and PLT levels (＜0.05), and there was no statistically significant difference between them (＞0.05). Half-dose plasma exchange combined with dual plasma molecular adsorption system therapy not only effectively improves hyperbilirubinemia, efficacy, and survival rate while significantly reducing plasma dosage, but it also has fewer adverse effects on hemoglobin depletion in patients with liver failure than simple plasma exchange therapy.