Transluminal antegrade drill dilation technique for hepaticojejunostomy stricture with cholangioscopic evaluation (with video)

Abstract

Background and study aims Balloon dilation and plastic stent deployment have been performed as hepaticojejunostomy stricture (HJS) treatment techniques under endoscopic ultrasound guidance (EUS). Although these techniques have shown favorable clinical results, the treatment period can be long because stent deployment is required. In addition, HJS may recur even after treatment because the scar tissue itself remains. To overcome these challenges, we developed an EUS-guided antegrade drill dilation technique for treating HJS. The aim of this study was to evaluate the technical feasibility and safety of this technique in terms of the pre- and post-cholangioscopic findings.

Patients and methods This retrospective study included consecutive patients whose conditions were complicated with symptomatic HJS between November 2022 and February 2023. Transluminal antegrade drill dilation (TAD) using a novel drill dilator was attempted within 14 days after EUS-guided hepaticogastrostomy (HGS). HJS was diagnosed with cholangioscopy before TAD, and resolution was evaluated after TAD using cholangioscopy.

Results TAD was attempted at approximately 11 days after EUS-HGS. The cholangioscope was inserted successfully in all patients after this procedure. Cholangioscopy revealed stricture without evidence of malignancy in 19 patients. In the remaining three patients, stricture was not observed and these patients underwent stent exchange rather than TAD. Among the 19 patients, passage of the guidewire across the HJS into the intestine was unsuccessful in four patients, and the technical success rate for this procedure was 78.9%. TAD was successful in all 15 patients in whom passage of the guidewire was achieved.

Conclusions In conclusion, TAD appears to be technically feasible and safe.

Keywords

Intervention EUS - Biliary tract

Publication History

Received: 11 July 2023

Accepted after revision: 14 September 2023

Accepted Manuscript online:
27 November 2023

Article published online:
12 February 2024

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