Table 7.

Clinical analysis of plasma exchange in the treatment of liver failure.

Liver failure type	Index	Mean (before and after)	Standard deviation (front and back)	The value of P
acute hepatic failure	ALT(U/L)	130.00, 76.33	147.77, 51.69	0.08
	AST(U/L)	180.50, 100.17	117.18, 52.11	0.028∗
	ALB(g/L)	31.82, 25.98	3.26, 1.06	0.042∗
	ALP(U/L)	124.33, 93.00	24.19, 21.93	0.027∗
	r-GT(U/L)	139.83, 79.83	30.65, 18.14	0.028∗
	TBil(umol/L)	383.88, 206.82	127.49, 71.11	0.028∗
	PT(s)	19.12, 16.87	2.50, 1.03	0.046∗
subacute hepatic failure	ALT(U/L)	427.67, 313.67	20.79, 104.18	0.285
	AST(U/L)	343.67, 367.33	24.66, 267.99	1.00
	ALB(g/L)	34.83, 28.00	2.60, 7.43	0.109
	ALP(U/L)	117.00, 67.67	22.61, 21.50	0.109
	r-GT(U/L)	56.33, 31.67	12.50, 13.58	0.109
	TBil(umol/L)	633.90, 384.87	67.76, 80.85	0.109
	PT(s)	37.77, 20.17	4.80, 1.80	0.109
acute-on-chronic liver failure	ALT(U/L)	272.90, 88.00	469.06, 56.50	0.008∗∗
	AST(U/L)	371.20, 187.80	506.46, 193.74	0.005∗∗
	ALB(g/L)	33.24, 29.85	1.92, 1.74	0.007∗∗
	ALP(U/L)	74.00, 66.00	36.24, 25.79	0.541
	r-GT(U/L)	70.50, 54.80	20.70, 13.10	0.047∗
	TBil(umol/L)	559.37, 408.53	380.74, 321.44	0.005∗∗
	PT(s)	20.24, 15.37	6.26, 1.53	0.028∗
Chronic liver failure	ALT(U/L)	37.8, 37.53	27.83, 18.69	0.955
	AST(U/L)	97.20, 78.20	90.85, 76.31	0.019∗
	ALB(g/L)	28.60, 27.86	6.21, 1.96	0.394
	ALP(U/L)	89.00, 80.13	28.71, 23.39	0.053
	r-GT(U/L)	41.40, 36.40	19.73, 18.53	0.033∗
	TBil(umol/L)	319.73, 223.11	145.33, 79.61	0.001∗∗∗
	PT(s)	24.06, 17.86	5.78, 2.60	0.001∗∗∗

Note.∗Compared with the preclinical indexes in the treatment of plasma exchange P < 0.05. ∗∗Compared with the preclinical indexes in the treatment of plasma exchange P < 0.01. ∗∗∗Compared with the preclinical indexes in the treatment of plasma exchange P ⩽ 0.001. There was significant statistical significance.