Different percutaneous transhepatic biliary stent placements and catheter drainage in the treatment of middle and low malignant biliary obstruction

Table 1 Comparison of baseline characteristics between the two groups

Clinical features	Group A, n = 224	Group B, n = 200	t value	P value
Male sex	124	103	0.632	0.427
Age in yr	69.76 ± 12.24	68.46 ± 14.45	0.816	0.675
Diabetes	21	25	1.060	0.302
Smoking	45	34	0.665	0.415
Coronary heart disease	53	48	0.070	0.935
Hypertension	23	22	0.060	0.870
Hyperlipidemia	14	19	1.555	0.212

Group A: Subxiphoid left hepatic lobe approach group; Group B: Right intercostal, right hepatic lobe approach group.

Table 2 Comparison of liver function levels and clinical efficacy before and after operation between the two groups

	Group A, n = 224	Group B, n = 200	t value	P value
Biliary tract bleeding	2	1	0.232	0.630
Duration of postoperative pain in h	2.10 ± 0.99	2.40 ± 1.89	-0.443	0.663
Peritoneal fluid leaking from around the drainage tube	13	31	10.681	0.001
Survival time in mo	26.2 ± 7.39	16.1 ± 2.72	4.054	0.001
Total bilirubin in µmol/L
Preoperative	208.23 ± 81.81	233.52 ± 92.41	-0.648	0.525
After 3 d	152.11 ± 86.21	141.15 ± 46.55	0.354	0.728
After 1 wk	64.09 ± 26.89	88.29 ± 45.40	-1.451	0.164
Rate of decline 3 d after surgery	30.40 ± 11.84	37.59 ± 13.65	-1.259	0.224
Rate of decline 1 wk after surgery	69.23 ± 4.50	63.79 ± 5.65	2.379	0.029
Direct bilirubin in µmol/L
Preoperative	170.73 ± 69.82	194.38 ± 72.66	-0.742	0.468
After 3 d	106.62 ± 61.87	114.37 ± 38.77	-0.336	0.741
After 1 wk	34.26 ± 23.37	72.83 ± 33.03	-3.014	0.007
Rate of decline 3 d after surgery	39.96 ± 12.05	40.05 ± 12.78	-0.015	0.988
Rate of decline 1 wk after surgery	79.30 ± 11.19	63.62 ± 5.64	3.956	0.001
Alanine aminotransferase (U/L)
Preoperative	127.20 ± 95.72	170.10 ± 109.80	-0.931	0.364
After 3 d	64.60 ± 24.35	102.20 ± 51.81	-2.077	0.052
After 1 wk	31.60 ± 14.72	43.00 ± 13.40	-10.810	0.087
Rate of decline 3 d after surgery	35.99 ± 33.13	34.46 ± 9.89	0.140	0.890
Rate of decline 1 wk after surgery	67.84 ± 22.83	60.38 ± 25.41	0.691	0.498
Aspartate aminotransferase (U/L)
Preoperative	254.00 ± 192.84	144.90 ± 42.79	1.746	0.098
After 3 d	51.60 ± 13.14	71.40 ± 12.17	-3.495	0.003
After 1 wk	36.60 ± 15.12	38.60 ± 16.04	-0.287	0.778
Rate of decline 3 d after surgery	72.31 ± 15.13	46.81 ± 18.41	3.383	0.003
Rate of decline 1 wk after surgery	80.45 ± 13.15	68.51 ± 18.28	1.676	0.111
Alkaline phosphatase in IU/L
Preoperative	995.00 ± 398.24	587.70 ± 199.03	2.893	0.010
After 3 d	798.00 ± 161.08	467.00 ± 155.36	4.677	0.001
After 1 wk	371.60 ± 129.25	305.80 ± 115.78	1.199	0.246
Rate of decline 3 d after surgery	14.24 ± 17.92	19.27 ± 15.73	-0.666	0.514
Rate of decline 1 wk after surgery	60.51 ± 12.23	42.68 ± 23.56	2.125	0.048
Gamma-glutamyl transpeptidase in IU/L
Preoperative	704.30 ± 364.56	434.80 ± 111.44	2.236	0.038
After 3 d	417.00 ± 202.68	293.80 ± 71.79	1.812	0.087
After 1 wk	181.40 ± 78.62	161.70 ± 52.93	0.657	0.519
Rate of decline 3 d after surgery	40.56 ± 10.32	32.22 ± 5.12	2.286	0.035
Rate of decline 1 wk after surgery	73.1 9 ± 7.05	58.81 ± 18.98	2.246	0.038

Group A: Subxiphoid left hepatic lobe approach group; Group B: Right intercostal, right hepatic lobe approach group.