AccScience Publishing / STI / Volume 46 / Issue 1 / DOI: 10.36922/sti.0372
RESEARCH ARTICLE

Assessing the Risk of Early Hemorrhage in Patients with Acute Cholangitis Undergoing Endoscopic Retrograde Cholangiopancreatography with Biliary Stent Placement

Erli Pei1 Haibo Ding1 Song Wang1 Lei Huang1 Hui Wang1* Li Cai2*
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1 Department of General Surgery, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
2 Department of Science and Research, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
STI 2026, 46(1), 0372 https://doi.org/10.36922/sti.0372
Received: 10 November 2025 | Revised: 28 February 2026 | Accepted: 9 March 2026 | Published online: 21 May 2026
© 2026 by the Author(s). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ )
Abstract

Background: Early postoperative hemorrhage is a serious complication of endo­scopic retrograde cholangiopancreatography (ERCP) with biliary stent placement for acute cholangitis, but its patient-related risk factors remain insufficiently defined.

Objective: We aimed to identify the potential risk factors for early postoperative hem­orrhage in patients undergoing ERCP with biliary stent placement for acute cholangitis.

Methods: A retrospective cohort study was conducted, including 150 patients under­going ERCP with biliary stent placement at Yangpu Hospital from January 2017 to De­cember 2020 as the training set, and all patients were followed up for six months to assess postoperative complications. The least absolute shrinkage and selection operator and multivariate logistic regression were performed to identify independent risk fac­tors associated with early postoperative hemorrhage, and a dynamic nomogram mod­el was constructed. Another 40 patients treated between January 2023 and December 2023 were used for external validation. Model prediction performance was evaluated using the receiver operating characteristic (ROC) curve, calibration plot, and decision curve analysis.

Results: Inflammatory and liver function indicators recovered rapidly after the oper­ation. The incidence of early postoperative hemorrhage, defined as a hemoglobin (Hb) drop exceeding 20.0 g/L, was 26.0% in the training set and 12.5% in the validation set. Multivariate analysis identified the neutrophil proportion, presence of pancreatitis, total bilirubin (TBIL), and baseline Hb levels as significant predictors of early hemor­rhage. The area under the ROC curve was 0.848 in the training set and 0.846 in the validation set, which indicated favorable predictive performance.

Conclusion: Preoperative presence of pancreatitis, higher TBIL levels, higher neutro­phil proportion, and higher baseline Hb were independent predictors of early postoper­ative hemorrhage risk in patients undergoing ERCP with biliary stent placement

Keywords
Biliary stent
Choledocholithiasis
Endoscopic retrograde cholangiopancreatography
Hemorrhage
Pancreatitis
Risk factors
Funding
This study was supported by Shanghai Municipal Health Commission Clinical Research Program (No. 20194Y0457 to Erli Pei) and Shanghai Municipal Health Commission Policy Program (No. 2022HP70 to Li Cai).
Conflict of interest
The authors declare that they have no competing interests.
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Surgical Technology International, Electronic ISSN: 1090-3941 Published by AccScience Publishing