Clinical Endoscopy

The Korean Society of Gastrointestinal Endoscopy (대한소화기내시경학회)
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The efficacy of a novel integrated outside biliary stent and nasobiliary drainage catheter system for acute cholangitis: a single center pilot study

  • Naosuke Kuraoka (Department of Gastroenterology, Saiseikai Kawaguchi General Hospital) ;
  • Tetsuro Ujihara (Department of Gastroenterology, Saiseikai Kawaguchi General Hospital) ;
  • Hiromi Kasahara (Department of Gastroenterology, Saiseikai Kawaguchi General Hospital) ;
  • Yuto Suzuki (Department of Gastroenterology, Saiseikai Kawaguchi General Hospital) ;
  • Shun Sakai (Department of Gastroenterology, Saiseikai Kawaguchi General Hospital) ;
  • Satoru Hashimoto (Department of Gastroenterology, Saiseikai Kawaguchi General Hospital)
  • Received : 2022.11.01
  • Accepted : 2022.12.14
  • Published : 2023.11.30
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Abstract

Background/Aims: Endoscopic biliary drainage is the gold standard treatment for cholangitis. The two methods of biliary drainage are endoscopic biliary stenting and nasobiliary drainage. A novel integrated outside biliary stent and nasobiliary drainage catheter system (UMIDAS NB stent; Olympus Medical Systems) was recently developed. In this study, we evaluated the efficacy of this stent in the treatment of cholangitis caused by common bile duct stones or distal bile duct strictures. Methods: We conducted a retrospective pilot study by examining the medical records of patients who required endoscopic biliary drainage for cholangitis due to common bile duct stones or distal bile duct strictures, and who were treated with a UMIDAS NB stent, between December 2021 and July 2022. Results: Records of 54 consecutive patients were reviewed. Technical and clinical success rates were 47/54 (87.0%) and 52/54 (96.3%), respectively. Adverse events were observed in 12 patients, with six patients experiencing pancreatitis as an adverse event, following endoscopic retrograde cholangiopancreatography (ERCP). Regarding late adverse events, five cases of biliary stent migration into the bile duct were observed. Disease-related death occurred in one patient. Conclusions: The outside-type UMIDAS NB stent is an efficacious new method for biliary drainage and can be applied to many indications.

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References

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