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  • Title: Long-term outcomes of a long, partially covered metal stent for EUS-guided hepaticogastrostomy in patients with malignant biliary obstruction (with video).
    Author: Nakai Y, Sato T, Hakuta R, Ishigaki K, Saito K, Saito T, Takahara N, Hamada T, Mizuno S, Kogure H, Nogchi K, Ito Y, Isayama H, Koike K.
    Journal: Gastrointest Endosc; 2020 Sep; 92(3):623-631.e1. PubMed ID: 32278705.
    Abstract:
    BACKGROUND AND AIMS: We previously reported safety and effectiveness of EUS-guided hepaticogastrostomy (EUS-HGS) using a long, partially covered metal stent (LP-CMS) for malignant biliary obstruction (MBO). In this study, we aimed to evaluate long-term outcomes of EUS-HGS in an expanded cohort. METHODS: One hundred ten patients undergoing EUS-HGS using an LP-CMS in 2 centers were retrospectively studied. Technical and functional success, adverse events, recurrent biliary obstruction (RBO), and reinterventions were evaluated. RESULTS: The cause of MBO was pancreatic cancer in 50%, and the location of MBO was distal in 68%. The stent length was 8 cm in 2%, 10 cm in 84%, and 12 cm in 15%, with a median intragastric stent length of 54 mm. Technical and functional success rates were 100% and 94%, respectively. The adverse event rate was 25% (mild 15%, moderate 7%, severe 3%), but about one-half of adverse events were mild transient fever and abdominal pain. RBO developed in 33%, with a median cumulative time to RBO of 6.3 months. The major cause of RBO was hyperplasia at an uncovered portion. The presence of prior biliary drainage and short intragastric stent length were significantly associated with RBO. Reintervention for RBO was successfully achieved through the EUS-HGS route in 92%. The remaining reintervention procedures were 1 EUS-HGS and 2 percutaneous transhepatic biliary drainage all in cases with hilar MBO. CONCLUSIONS: EUS-HGS using an LP-CMS for unresectable MBO was safe and effective. RBO was not uncommon, but reintervention through the EUS-HGS route was technically possible in most cases.
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