Retrospective Study
Copyright ©The Author(s) 2025.
World J Gastrointest Surg. Mar 27, 2025; 17(3): 99425
Published online Mar 27, 2025. doi: 10.4240/wjgs.v17.i3.99425
Table 1 Baseline characteristics of 94 patients with bile duct leaks, n (%)
Characteristics
Overall (n = 94)
< 3 weeks (n = 50)
> 3 weeks (n = 44)
P value
Basic demographics
Sex---0.392
Female28 (29.8)13 (26)15 (34.1)-
Male66 (70.2)37 (74)29 (65.9)-
Age, years, mean ± SD52.5 ± 12.954.1 ± 13.350.6 ± 12.40.192
BMI, mean ± SD23.1 ± 3.423.1 ± 3.223.1 ± 3.70.830
CCI, (Q1, Q3)3 (1, 4)2 (1, 4)3 (1, 5)0.163
Laboratory test within 3 days before ERCP
WBC, × 109/L (Q1, Q3)8.2 (6.3, 16.9)8.5 (7.2, 11.6)8.1(6.0, 12.8)0.909
ALT, U/L (Q1, Q3)36.4 (25.9, 80.6)32.3 (25.9, 57.3)38 (24.7, 98.0)0.480
Tbil, μmol/L (Q1, Q3)20.2 (12.3, 38.8)20.5 (13.5, 60.0)18.5 (11.7, 36.5)0.191
Albumin, g/L, mean ± SD35.2 ± 5.935.4 ± 6.835.0 ± 4.80.728
Creatinine, μmol/L (Q1, Q3)58.4 (48.9, 71.7)57.2 (46.6, 71.1)59.2 (46.4, 71.2)0.796
Etiology of BDLs---0.307
Cholecystectomy65 (69.1)39 (78.0)26 (59.1)-
Liver transplantation13 (13.8)6 (12.0)7 (15.9)-
Partial hepatectomy8 (8.5)3 (6.0)5 (11.4)-
Trauma4 (4.3)1 (2.0)3 (6.8)-
Others4 (4.3)1 (2.0)3 (6.8)-
Treatment methods---0.149
Plastic stent52 (55.3)28 (56)32 (64)-
5 Fr2 (2.1)0 (0)2 (4.5)-
7 Fr3 (3.2)3 (6.0)0 (0)-
8.5 Fr12 (12.8)5 (10.0)7 (15.9)-
10 Fr35 (37.2)20 (40.0)23 (52.3)-
Metal stent (10 mm)3 (3.2)2 (4.0)1 (2.3)-
Nasobiliary drainage tube31 (33.0)20 (40.0)11 (25.0)-
Procedure characteristics
Location of BDLs---0.488
Cystic duct53 (56.4)29 (58.0)24 (54.5)-
Common bile duct20 (21.3)10 (20.0)10 (22.7)-
Hilar bile duct12 (12.8)8 (16.0)4 (9.1)-
Intrahepatic bile duct9 (9.6)3 (6.0)6 (13.6)-
Abdominal drainage76 (80.9)42 (84.0)34 (77.3)0.410
Strasberg classification---0.259
A38 (40.4)24 (48.0)14 (31.8)-
C11 (11.7)5 (10.0)6 (13.6)-
D32 (34.0)13 (26.0)19 (43.2)-
E15 (5.3)4 (8.0)1 (2.3)-
E28 (8.5)4 (8.0)4 (9.1)-
Table 2 Success rate and biliary stricture associated with the timing of endoscopic retrograde cholangiopancreatography
Timing
Success (%)
OR
P value
Biliary stricture (%)
ORP value
Yes
No
Yes
No
< 3, n = 65 (83.3)1 (16.7)0.946 (0.103-8.725)0.9612 (33.3)4 (66.7)0.130 (0.195-6.545)0.892
> 3, n = 8874 (84.1)14 (15.9)--27 (30.7)61 (69.3)--
< 7, n = 1816 (88.9)2 (11.1)1.651 (0.338-8.068)0.5363 (16.7)15 (83.3)0.385 (0.102-1.450)0.158
> 7, n = 7663 (82.9)13 (17.1)--26 (34.2)50 (65.8)--
< 14, n = 3228 (87.5)4 (12.5)1.510 (0.440-5.185)0.5134 (12.5)28 (87.5)0.211 (0.066-0.677)0.009
> 14, n = 6251 (82.3)11 (17.7)--25 (40.3)37 (59.7)--
< 21, n = 5046 (92.0)4 (8.0)3.833 (1.122-13.097)0.0329 (18.0)41 (82.0)0.263 (0.103-0.670)0.005
> 21, n = 4433 (75.0)11 (25.0)--20 (45.5)24 (54.5)--
Table 3 Univariable and multivariable analysis of factors associated with successful endoscopic retrograde cholangiopancreatography, n (%)
VariableUnivariable analysis
Multivariable analysis
Success (n = 79)
Failure (n = 15)
P value
OR
95%CI
P value
Basic demographics
Sex, female24 (30.4)4 (26.7)0.773---
Age, years, mean ± SD52.8 ± 12.751.0 ± 14.60.638---
BMI, mean ± SD23.4 ± 3.421.5 ± 3.10.0490.8140.653-1.0140.067
CCI, (Q1, Q3)2.5 (1, 4)3.0 (2, 7)0.0310.8640.704-1.0620.164
Laboratory test within 3 days before ERCP
WBC, × 109/L, mean ± SD9.4 ± 4.310.4 ± 5.10.390---
ALT, U/L (Q1, Q3)36.1 (25.9, 81.2)39.6 (22.8, 82.0)0.812---
Tbil, μmol/L (Q1, Q3)19.3 (12.1, 39.4)34.0 (12.6, 80.0)0.715---
Albumin, g/L, mean ± SD35.3 ± 6.034.6 ± 5.60.659---
Creatinine, μmol/L (Q1, Q3)58.0 (47.0, 69.0)59.3 (52.0, 99.0)0.196---
Etiology of BDLs--0.126---
Cholecystectomy58 (73.4)7 (46.7)----
Liver transplantation9 (11.4)4 (26.7)----
Partial hepatectomy7 (8.9)1 (6.7)----
Trauma2 (2.5)2 (13.3)----
Others3 (3.8)1 (6.7)----
Characteristics of different methods---0.326---
Plastic stent50 (63.3)10 (66.7)----
Metal stent (10 mm)2 (2.5)1 (6.7)----
Nasobiliary drainage tube27 (34.2)4 (26.7)----
Location of BDLs, cystic duct51 (64.6)2 (13.3)0.00212.2192.317-64.4330.003
Biliary stricture23 (29.1)6 (40.0)0.403---
Performing ERCP within 3 weeks46 (58.2)4 (26.7)0.0324.1681.031-16.8410.045
Abdominal drainage64 (81.0)12 (15.8)0.938---
Table 4 Univariable and multivariable analysis of variables associated with biliary stricture, n (%)
Variable
Univariable analysis
Multivariable analysis
Biliary stricture (n = 29)
No biliary stricture (n = 65)
P value
OR
95%CI
P value
Basic demographics
Sex, female12 (41.4)16 (24.6)0.104---
Age, years, mean ± SD54.14 ± 13.350.6 ± 12.390.585---
BMI, mean ± SD23.1 ± 3.223.1 ± 3.70.316---
CCI, (Q1, Q3)2 (1, 4)3 (1, 5)0.0211.1090.918-1.3380.217
Laboratory test within 3 days before ERCP
WBC, × 109/L (Q1, Q3)8.4 (3, 4)10.0 (4, 8)0.110---
ALT, U/L (Q1, Q3)32.3 (25.9, 57.3)38 (24.7, 98.0)0.245---
Tbil, μmol/L (Q1, Q3)20.5 (13.5, 60.0)18.6 (11.7, 36.5)0.327---
Albumin, g/L, mean ± SD35.4 ± 6.835.0 ± 4.80.341---
Creatinine, μmol/L (Q1, Q3)57.2 (50.4, 73.8)59.2 (46.4, 71.2)0.916---
Etiology of BDLs, liver transplantation7 (24.1)6 (9.2)0.0532.6570.562-12.5510.284
Location of BDLs--0.438---
Cystic duct14 (48.3)39 (60.0)----
Common bile duct9 (31.0)11 (16.9)----
Hilar bile duct4 (13.8)8 (12.3)----
Intrahepatic bile duct2 (6.9)7 (10.8)----
Performing ERCP within 3 weeks9 (31.0)41 (63.1)0.0050.2560.096-0.6830.007