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. 2022 Jun;36(6):4553-4569.
doi: 10.1007/s00464-021-08808-0. Epub 2021 Nov 1.

EUS-guided biliary drainage with LAMS for distal malignant biliary obstruction when ERCP fails: single-center retrospective study and maldeployment management

Roberto Di Mitri  1 , Michele Amata  2 , Filippo Mocciaro  1 , Elisabetta Conte  1 , Ambra Bonaccorso  1 , Barbara Scrivo  1 , Daniela Scimeca  1
Affiliations

EUS-guided biliary drainage with LAMS for distal malignant biliary obstruction when ERCP fails: single-center retrospective study and maldeployment management

Roberto Di Mitri et al. Surg Endosc. 2022 Jun.

Abstract

Background: EUS-guided biliary drainage (EUS-BD) with Lumen Apposing Metal Stent (LAMS) is a mini-invasive approach for jaundice palliation in distal malignant biliary obstruction (D-MBO) not amenable to ERCP, with good efficacy and not exiguous adverse events.

Aims and methods: From January 2015 to December 2019, we retrospectively enrolled all the EUS-BD with electrocautery-enhanced LAMS for biliary decompression in unresectable D-MBO and failed ERCP. Primary study aims were to evaluate technical/clinical success and AEs rate. In case of maldeployment, we estimated the efficacy of an intra-operative rescue therapy. Secondary aims were to assess the jaundice recurrence and gastric outlet obstruction symptoms.

Results: Thirty-six EUS-BD were enrolled over a cohort of 738 patients (ERCP cannulation failure rate was 2.6%): 31 choledocho-duodenostomy and 5 cholecystogastrostomy. A pre-loaded guidewire through the LAMS was systematically used in case of common bile duct ≤ 15 mm or scope instability for a safe/preventive biliary entryway in case of intra-procedural complications. Technical success was 80.6% (29/36 patients). Seven cases of LAMS maldeployment during EUS-guided choledocho-duodenostomy were successfully treated with RT by an over-the-wire fully-covered Self-Expandable Metal Stent (FC-SEMS). The FC-SEMS was released through the novel fistula tract in endoscopic fashion in 5/7 cases and transpapillary in percutaneous-transhepatic-endoscopic rendezvous (1/7) and laparoscopic-endoscopic rendezvous (1/7) in the two remaining cases. The total efficacy of rescue therapy was 100%. Same-session duodenal SEMS was placed in 17 patients with optimal gastric outlet obstruction management. Final clinical success was 100% and no other late adverse events or FC-SEMS migration were observed.

Conclusion: EUS-BD with LAMS is effective for jaundice palliation after ERCP failure but with considerable adverse events. Maldeployment remains a serious complication with fatal evolution if not correctly recognized/managed. Rescue therapy must be promptly applied especially in tertiary-care centers with highly skilled endoscopists, interventional radiologist and dedicated surgeon.

Keywords: Distal malignant biliary obstruction (D-MBO); ERCP; EUS-guided biliary drainage; Lumen apposing metal stent (LAMS); Maldeployment.

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