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Retrospective Cohort Study
©The Author(s) 2025.
World J Gastrointest Endosc. Sep 16, 2025; 17(9): 108420
Published online Sep 16, 2025. doi: 10.4253/wjge.v17.i9.108420
Table 10 Comparison of treatment outcomes between the needle knife fistulotomy group and the needle knife papillotomy within the early precut group, n (%)
NKF (n = 29)
NKP (n = 19)
P value
Oral protrusion-L26 (89.7)9(47.4)0.002
Overall bile duct cannulation success rate100% (29/29)94.7% (18/19)0.4
Success rate up to the 2nd line100% (29/29)94.7% (18/19)0.4
Cannulation time (second)757.5 (242-2085)902 (416-1450)0.896
No. of attempts7 (2-15)7.5 (3-12)0.74
Procedure time (minute)30 (10-69)32 (15-102)0.51
Complications1 (3.4)3 (15.8)0.29
Hemorrhage0 (0)0 (0)1
PEP1 (3.4)1 (5.2)1
Mild/moderate/severe1/0/01/0/0-
Elevated amylase02 (10.5)0.15
Amy level130 (27-895)75 (20-1045)0.94
Median (range, U/L)


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