Abstract
Radioactive stent insertion (RSI) is widely used for patients with obstructive hilar cholangiocarcinoma (HC) to increase the stent patency and overall survival (OS). However, one controversy of treating HC patients is determining whether to use unilateral or bilateral stenting. General knowledge on unilateral and bilateral RSI efficacy is still lacking. To evaluate the clinical efficacy and long-term prognoses of unilateral and bilateral RSI in HC patients. Between January 2016 and December 2020, all HC patients who received unilateral and bilateral RSI at our hospital were selected for this study. We compared the treatment efficacy and long-term prognosis of patients undergoing these two procedures. Overall, 65 HC patients received either unilateral (n = 33) or bilateral (n = 32) RSI. There were no significant differences in the technical (both 100%) and functional (97.0% vs. 90.6%, p = 0.584) success rates between the 2 groups. Stent re-obstruction occurred in 6 and 9 patients in the unilateral and bilateral groups, respectively (p = 0.341). Median stent patency was 214 and 233 days in the unilateral and bilateral groups, respectively (p = 0.650). Median OS was 240 and 281 days in the unilateral and bilateral groups, respectively (p = 0.068). Lastly, the total complication rate was significantly lower in the unilateral group, as compared to the bilateral group (12.1% vs. 34.4%, p = 0.033). Unilateral and bilateral RSI provided comparable clinical efficacy and long-term prognoses of HC patients. However, unilateral stenting exhibited a markedly lower complication rate.
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