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Prophylactic endoscopic transpapillary gallbladder stenting to prevent acute cholecystitis induced after metallic stent placement for malignant biliary strictures: a retrospective study in Japan

  • Fumisato Kozakai (Department of Gastroenterology, Sendai City Medical Center) ;
  • Yoshihide Kanno (Department of Gastroenterology, Sendai City Medical Center) ;
  • Shinsuke Koshita (Department of Gastroenterology, Sendai City Medical Center) ;
  • Takahisa Ogawa (Department of Gastroenterology, Sendai City Medical Center) ;
  • Hiroaki Kusunose (Department of Gastroenterology, Sendai City Medical Center) ;
  • Toshitaka Sakai (Department of Gastroenterology, Sendai City Medical Center) ;
  • Keisuke Yonamine (Department of Gastroenterology, Sendai City Medical Center) ;
  • Kazuaki Miyamoto (Department of Gastroenterology, Sendai City Medical Center) ;
  • Haruka Okano (Department of Gastroenterology, Sendai City Medical Center) ;
  • Yuto Matsuoka (Department of Gastroenterology, Sendai City Medical Center) ;
  • Kento Hosokawa (Department of Gastroenterology, Sendai City Medical Center) ;
  • Hidehito Sumiya (Department of Gastroenterology, Sendai City Medical Center) ;
  • Kei Ito (Department of Gastroenterology, Sendai City Medical Center)
  • Received : 2023.11.06
  • Accepted : 2023.12.25
  • Published : 2024.09.30

Abstract

Background/Aims: Endoscopic biliary drainage using self-expandable metallic stents (SEMSs) for malignant biliary strictures occasionally induces acute cholecystitis (AC). This study evaluated the efficacy of prophylactic gallbladder stents (GBS) during SEMS placement. Methods: Among 158 patients who underwent SEMS placement for malignant biliary strictures between January 2018 and March 2023, 30 patients who attempted to undergo prophylactic GBS placement before SEMS placement were included. Results: Technical success was achieved in 21 cases (70.0%). The mean diameter of the cystic duct was more significant in the successful cases (6.5 mm vs. 3.7 mm, p<0.05). Adverse events occurred for 7 patients (23.3%: acute pancreatitis in 7; non-obstructive cholangitis in 1; perforation of the cystic duct in 1 with an overlap), all of which improved with conservative treatment. No patients developed AC when the GBS placement was successful, whereas 25 of the 128 patients (19.5%) without a prophylactic GBS developed AC during the median follow-up period of 357 days (p=0.043). In the multivariable analysis, GBS placement was a significant factor in preventing AC (hazard ratio, 0.61; 95% confidence interval, 0.37-0.99; p=0.045). Conclusions: GBS may contribute to the prevention of AC after SEMS placement for malignant biliary strictures.

Keywords

References

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