Endoscopic treatment of malignant hilar biliary obstruction: A retrospective cohort study

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World Journal of Gastrointestinal Endoscopy

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1948-5190

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Cohort Study

World J Gastrointest Endosc. Dec 16, 2025; 17(12): 110432
Published online Dec 16, 2025. doi: 10.4253/wjge.v17.i12.110432

Table 3 Correlation of selected clinical parameters with overall survival time

	r value	P value
Age	-0.13	0.1004
Time to progression to the next Bismuth stage	0.56	0.0035
Number of ERCP procedures before diagnosis	0.28	0.0003
Number of ERCP procedures after placement of UCSEMS stents	0.55	0.0004
Total number of ERCP procedures	0.69	0.0001
Number of cholangitis episodes in patients with UCSEMS	0.39	0.0467
Number of cholangitis episodes in patients with unilateral plastic	-0.24	0.1666
Number of cholangitis episodes in patients with bilateral plastic	0.19	0.1060
Number of cholangitis episodes in patients with mixed approach group	0.04	0.7837
Number of failed ERCP	0.01	0.9236

ERCP: Endoscopic retrograde cholangiopancreatography; UCSEMS: Uncovered self-expandable metal stents.

Citation: Pietrzak J, Pertkiewicz J, Kozieł S, Babski P, Ligocka J, Przybyłkowski A. Endoscopic treatment of malignant hilar biliary obstruction: A retrospective cohort study. World J Gastrointest Endosc 2025; 17(12): 110432
URL: https://www.wjgnet.com/1948-5190/full/v17/i12/110432.htm
DOI: https://dx.doi.org/10.4253/wjge.v17.i12.110432

Pietrzak J, Pertkiewicz J, Kozieł S, Babski P, Ligocka J, Przybyłkowski A. Endoscopic treatment of malignant hilar biliary obstruction: A retrospective cohort study. World J Gastrointest Endosc 2025; 17(12): 110432 [PMID: 41479936 DOI: 10.4253/wjge.v17.i12.110432]

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