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Retrospective Cohort Study
©The Author(s) 2025.
World J Gastrointest Endosc. Dec 16, 2025; 17(12): 110136
Published online Dec 16, 2025. doi: 10.4253/wjge.v17.i12.110136
Table 2 Factors related to Endoscopic ultrasound-guided biliary drainage procedures, median (interquartile range)/n (%)

PS group (n = 51)
MS group (n = 13)
P value
22 G needle use30 (58.8)1 (7.7)< 0.01
Punctured organ (stomach/duodenum)45/64/9< 0.01
Dilator (mechanical/cautery/unknown)50/0/17/6/0< 0.01
Use of antegrade stenting10 (19.6)0 (0)0.11
Procedural time, minutes38.5 (25.8-60.0)50.0 (41.8-59.8)0.31
Adverse events1 (2.0)0 (0)1.0
    Bleeding1
RBO22 (43.1)3 (23.1)0.22
Reason for RBO
    Debris161
    Dislocation42
    Blood clot1
    Overgrowth1
Chemotherapy before RBO21 (41.2)4 (30.8)0.54
Duodenal stent placement before RBO11 (21.6)3 (23.1)1.0


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