Technical failure of endoscopic ultrasound-guided choledochoduodenostomy: multicenter study on rescue techniques, consequences, and risk factors

Abstract

Background We aimed to determine risk factors for technical failure of endoscopic ultrasound-guided choledochoduodenostomy (EUS-CDS), evaluate short- and long-term consequences, and identify salvage techniques in patients with biliary obstruction.

Methods This retrospective multicenter study of EUS-CDS (2018–2024) included technical failure, classified as type 1 (digestive flange mispositioned), type 2 (biliary flange mispositioned), type 3 (stent deployment failure), type 4 (catheter/lumen-apposing metal stent [LAMS] through the bile duct), and type 5 (others). Controls were successful EUS-CDS in the same center and period. The primary end point was risk factors for failure. Secondary end points were endoscopic rescue techniques and immediate- and long-term consequences.

Results Technical failure occurred in 7 % (95 %CI 5–9). Across 23 centers, 296 patients were analyzed (mean age 71 [SD 16] years, 53 % male), including 100 technical failures: type 1 (26 %), type 2 (41 %), type 3 (11 %), type 4 (6 %), type 5 (16 %). Risk factors for technical failure in multivariate analysis included CBD diameter ≤ 15 mm, duodenal stenosis, wired technique, and low operator experience (≤ 10 LAMS). Endoscopic salvage was successful in 77 %, with 53 % using a covered metal stent and 22 % using a new LAMS. Early failures were mild in 56 % of cases, but 12 % resulted in death within 30 days. Immediate endoscopic salvage reduced severe clinical adverse events (P < 0.001) and increased success rates (P < 0.001).

Conclusions EUS-CDS failures were not rare and were severe in half of cases. Recognizing risk factors, identifying failures during the procedure, and knowing endoscopic salvage methods are crucial.

Publication History

Received: 11 June 2024

Accepted after revision: 17 February 2025

Accepted Manuscript online:
17 February 2025

Article published online:
14 May 2025

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