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Usefulness of the Novel Snare-over-the-Guidewire Method for Transpapillary Plastic Stent Replacement (with Video).

ABSTRACT: Unsuccessful stent replacement in transpapillary biliary drainage with plastic stents (PSs) has a significant impact on patient prognosis; thus, a safe and reliable replacement method is required. We aimed to compare the snare-over-the-guidewire (SOG) method, wherein the PS lumen is used as an access route to the biliary tract and the PS is removed with a snare inserted via the inserted guidewire, with the conventional side-of-stent (SOS) method, wherein the biliary approach is performed from the side of the PS. This retrospective single-center study included 244 consecutive patients who underwent biliary PS replacement between January 2018 and July 2020. The procedural success rates were compared between the two methods. A predictive analysis of unsuccessful PS replacement was also performed. The procedural success rate in the SOG group was significantly higher than that in the SOS group (p = 0.026). In the proximal biliary stenosis lesion, the same trend was observed (p = 0.025). Multivariate analysis also showed that the SOS method (p = 0.0038), the presence of proximal biliary stenosis (p < 0.0001), and parapapillary diverticulum (p = 0.0007) were predictors of unsuccessful PS replacement. The SOG method may be useful for biliary PS replacement, especially in cases of proximal hilar bile duct stenosis.

SUBMITTER: Yoshida A

PROVIDER: S-EPMC8268235 | biostudies-literature |

REPOSITORIES: biostudies-literature

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