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  • Title: Comparison of endoscopic ultrasound-guided hepaticogastrostomy and the antegrade technique in the management of unresectable malignant biliary obstruction: study protocol for a prospective, multicentre, randomised controlled trial.
    Author: Liao Y, Giovannini M, Zhong N, Xiao T, Sheng S, Wu Y, Zhang J, Wang S, Liu X, Sun S, Guo J.
    Journal: Trials; 2020 Sep 29; 21(1):817. PubMed ID: 32993731.
    Abstract:
    BACKGROUND: Endoscopic ultrasound-guided biliary drainage (EUS-BD) is used after failed endoscopic retrograde cholangiopancreatography. Based on existing studies, intrahepatic (IH) approaches are preferred in patients with dilated IH bile ducts. Both ultrasound-guided hepaticogastrostomy (EUS-HGS) and ultrasound-guided antegrade treatment (EUS-AG) are appropriate for patients with unreachable papillae. Nevertheless, there have been no direct comparisons between these two approaches. Therefore, we aim to evaluate and compare the safety and efficiency of EUS-HGS and EUS-AG in patients with an unreachable papilla. METHODS: This is a prospective, randomised, controlled, multicentre study with two parallel groups without masking. One hundred forty-eight patients from three hospitals who met the inclusion criteria will be randomly assigned (1:1) to undergo either EUS-HGS or EUS-AG for relief of malignant biliary obstruction. The final study follow-up is scheduled at 1 year postoperatively. The primary endpoint is efficiency, described by technical and clinical success rates of EUS-HGS and EUS-AG in patients with unreachable papillae. The secondary endpoints include stent patency, overall survival rates, complication rates, length of hospital stays, and hospitalisation expenses. The chi-square test, Kaplan-Meier methods, log-rank test, and Cox regression analysis will be used to analyse the data. DISCUSSION: To our knowledge, this is the first study to compare these two EUS-BD approaches directly using a multicentre, randomised, controlled trial design. The clinical economic indexes will also be compared, as they may also affect the patient's choice. The result may contribute to establishing a strategic guideline for choosing IH EUS-BD approaches. TRIAL REGISTRATION: Chinese Clinical Trial Registry (ChiCTR) ChiCTR1900020737 . Registered on 15 January 2019.
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