Factors affecting complete stone extraction in the initial procedure in short type single-balloon enteroscopy-assisted endoscopic retrograde cholangiography for patients with Roux-en-Y gastrectomy.

Stone extraction in patients with Roux-en-Y gastrectomy using short SBE was effective. Patients with a large diameter bile duct required several sessions for complete stone extraction, suggesting that more dedicated devices are warranted for patients with surgically altered anatomy.