Endoscopic ultrasound‐guided drainage using LAMS of malignant afferent limb syndrome in patients with previous Whipple surgery: A multicenter study (with video)

Objectives Endoscopic ultrasound‐guided digestive anastomosis (EUS‐A) is a new alternative under evaluation in patients presenting with afferent limb syndrome (ALS) after Whipple surgery. The aim of the present study is to analyze the safety and effectiveness of EUS‐A in ALS. Methods This is an observational multicenter study. All patients ≥18 years old with previous Whipple surgery presenting with ALS who underwent an EUS‐A using a lumen‐apposing metal stent (LAMS) between 2015 and 2021 were included. The primary outcome was clinical success, defined as resolution of the ALS or ALS‐related cholangitis. Furthermore, technical success, adverse event rate, and mortality were evaluated. Results Forty‐five patients (mean age: 65.5 ± 10.2 years; 44.4% male) were included. The most common underlying disease was pancreatic cancer (68.9%). EUS‐A was performed at a median of 6 weeks after local tumor recurrence. The most common approach used was the direct/freehand technique (66.7%). Technical success was achieved in 95.6%, with no differences between large (≥15 mm) and small LAMS (97.4% vs. 100%, P = 0.664). Clinical success was retained in 91.1% of patients. A complementary treatment by dilation of the stent followed by endoscopic retrograde cholangiopancreatography through the LAMS was performed in three cases (6.7%). There were six recurrent episodes of cholangitis (14.6%) and two procedure‐related adverse events (4.4%) after a median follow‐up of 4 months. Twenty‐six patients (57.8%) died during the follow‐up due to disease progression. Conclusion EUS‐A is a safe and effective technique in the treatment of malignant ALS, achieving high clinical success with an acceptable recurrence rate.