Application of DynaCT biliary soft tissue reconstruction technology in diagnosis and treatment of hepatolithiasis

Table 2 Comparison of intraoperative, postoperative, and long-term follow-up results between the two groups, n (%)

Variable	DynaCT-PTOBF (n = 70)	PTOBF (n = 70)	P value
Total surgical time (min)	55.8 ± 24.0	55.2 ± 34.0	0.900
Intraoperative haemorrhage (mL)	3.14 ± 2.00	26.5 ± 52.1	0.039
Immediate stone removal rate	48 (68.6)	35 (50.0)	0.025
Immediate stenosis dilatation success rate	51 (72.9)	39 (55.7)	0.034
Short-term complications	11 (12.9)	6 (8.6)	0.196
Haemorrhage	2 (2.9)	1 (1.4)	0.559
Pulmonary infection	1 (1.4)	2 (2.9)	0.559
Cholangitis	6 (5.7)	2 (2.9)	0.145
Pleural effusion	2 (2.9)	1 (1.4)	0.559
Follow-up time (d)	209.2 ± 20.7	498.0 ± 373.5	0.000
Final stone extraction rate	60 (85.7)	54 (77.1)	0.192
Final stenosis release rate	64 (91.4)	53 (75.7)	0.012
Number of operations	3.0 ± 1.4	3.1 ± 1.5	0.056
Stone recurrence rate	3 (4.3)	11 (15.7)	0.024
Reoperation rate	2 (2.9)	7 (10.0)	0.085
Long-term complications	3 (4.3)	9 (12.9)	0.070
Distant cholangitis	2 (2.9)	8 (11.4)	0.049
Liver failure	1 (1.4)	1 (1.4)	1.00

PTOBF: Percutaneous transhepatic one-step biliary fistulation.