Korean J Pancreas Biliary Tract.  2017 Oct;22(4):165-171. 10.15279/kpba.2017.22.4.165.

Comparison of Outcomes between 7-French and 10-French Plastic Stents for Patients with Biliary Tract Cancer

  • 1Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea. jawkim96@yonsei.ac.kr


/AIM: There is little data on whether plastic stents with a larger diameter are patent for longer than small stents in patients with bile duct cancer. The aim of this study was to compare the stent survival between 7-French (Fr) and 10-Fr plastic stents and evaluate the factors affecting stent survival.
Patients with biliary obstruction due to biliary tract cancer were enrolled at Yonsei University Wonju College of Medicine from January 2010 to October 2014.
A total of 215 patients (7-Fr:10-Fr = 89:126 patients) were retrospectively enrolled. The primary tumor sites were common bile duct (n = 111), hilar (n = 45), and ampulla of Vater (n = 59). Rates of stent migration and stent obstruction were not different between the two groups. The median duration of stent survival was 3.3 months in the 7-Fr group and 5.9 months in the 10-Fr group (p = 0.543). The diameter of the stent did not have an effect on stent survival (hazard ratio 1.11, 95% confidence interval 0.71-1.73, p = 0.649).
7-Fr and 10-Fr stents have similar rates of stent migration and stent obstruction. The stent survival of 7-Fr was not inferior to 10-Fr stents in the management of biliary tract cancer.


Biliary tract cancer; Stents; Survival
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