Radioactive Stent Insertion for Inoperable Malignant Common Biliary Obstruction


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Abstract

Purpose:The purpose of this study was to assess the clinical efficacy and long-term outcomes of radioactive stent insertion in patients with malignant common biliary obstruction (MCBO).Materials and Methods:This was a retrospective study conducted at a single-center. Consecutive patients with MCBO were treated by normal or radioactive stent insertion between January 2014 and December 2019. The baseline data, instant efficacy records, and the long-term outcome results of these 2 groups were compared.Results:During the experimental duration, at our center 71 patients with inoperable MCBO underwent normal (n=40) or radioactive (n=31) stent insertion. Rates of technical success of normal and radioactive stent insertions were both 100%. No patients exhibited procedure-related complications. All patients achieved improvements in their liver functions at 2 weeks after stent insertion. Stent dysfunction was recorded in 11 and 6 patients from the normal and radioactive stent groups, respectively (P=0.425). The median stent patency was 165 and 222 days with the normal and radioactive stents, respectively (P<0.001). All patients died due to tumor progression at the follow-up. Patients survived for a respective median of 182 and 242 days in the normal and radioactive stent groups (P<0.001). The complication rates were comparable between the 2 groups.Conclusion:Radioactive stent insertion may provide longer patency and overall survival in those exhibiting inoperable MCBO than normal stent insertion.

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