Abstract
Objective
To investigate the technical feasibility, safety, and efficacy of a long-covered biliary stent in patients with malignant duodenobiliary stricture.
Methods
This retrospective study enrolled 57 consecutive patients (34 men, 23 women; mean age, 64 years; range, 32–85 years) who presented with malignant duodenobiliary stricture between February 2019 and November 2020. All patients were treated with a long (18 or 23 cm)-covered biliary stent.
Results
The biliary stent deployment was technically successful in all 57 patients. The overall adverse event rate was 17.5% (10 of 57 patients). Successful internal drainage was achieved in 55 (96.5%) of 57 patients. The median patient survival and stent patency times were 99 days (95% confidence interval [CI], 58–140 days) and 73 days (95% CI, 60–86 days), respectively. Fourteen (25.5%) of the fifty-five patients presented with biliary stent dysfunction due to sludge (n = 11), tumor overgrowth (n = 1), collapse of the long biliary stent by a subsequently inserted additional duodenal stent (n = 1), or rapidly progressed duodenal cancer (n = 1). A univariate Cox proportional hazards model did not reveal any independent predictor of biliary stent patency.
Conclusions
Percutaneous insertion of a subsequent biliary stent was technically feasible after duodenal stent insertion. Percutaneous insertion of a long-covered biliary stent was safe and effective in patients with malignant duodenobiliary stricture.
Clinical relevance statement
In patients with malignant duodenobiliary stricture, percutaneous insertion of a long-covered biliary stent was safe and effective regardless of duodenal stent placement.
Key Points
• Percutaneous insertion of long-covered biliary stents in patients with malignant duodenobiliary stricture is a safe and effective procedure.
• Biliary stent deployment was technically successful in all 57 patients and successful internal drainage was achieved in 55 (96.5%) of 57 patients.
• The median patient survival and stent patency times were 99 days and 73 days, respectively, after placement of a long-covered biliary stent in patients with duodenobiliary stricture.
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Abbreviations
- AoV:
-
Ampulla of Vater
- CBD:
-
Common bile duct
- GB:
-
Gallbladder
- HCC:
-
Hepatocellular carcinoma
- PTBD:
-
Percutaneous transhepatic biliary drainage
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The scientific guarantor of this publication is Dong Il Gwon.
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Dong Il Gwon (corresponding author) has significant statistical expertise. Chang Hoon Oh did statistical analyses in this study.
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Our Institutional Review Board waived the requirement for patient informed consent because of the retrospective and anonymized nature of the study.
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The study was conducted according to the guidelines of the Declaration of Helsinki and approved by the Institutional Review Board of Asan Medical Center.
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• retrospective
• observational
• performed at one institution
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Oh, C.H., Gwon, D.I., Chu, H.H. et al. Percutaneous insertion of long-covered biliary stents in patients with malignant duodenobiliary stricture. Eur Radiol 34, 538–547 (2024). https://doi.org/10.1007/s00330-023-10024-4
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DOI: https://doi.org/10.1007/s00330-023-10024-4