Use of short single-balloon enteroscopy in patients with surgically altered anatomy: A single-center experience

Abstract Conventional duodenoscopy is challenging to perform in patients with a surgically altered anatomy (SAA). Short single-balloon enteroscopy (SBE) is an innovative alternative. We investigated the performance of short SBE in patients with SAA and explored risk factors for unsuccessful intubation. Patients who underwent short SBE from October 2019 to October 2023 were retrospectively analyzed. Successful enteroscopic intubation was defined as endoscope reaching the target site of the afferent limb and identification of the papilla of Vater or pancreaticobiliary-enteric anastomosis. In total, 99 short SBE procedures were performed in 64 patients (40 men, 24 women) with a mean age of 61 years (range, 36–86 years). The patients had a history of choledochoduodenostomy (n = 1), Billroth II gastrojejunostomy (n = 11), pancreaticoduodenectomy (n = 17), Roux-en-Y reconstruction with hepaticojejunostomy (n = 31), and Roux-en-Y reconstruction with total gastrectomy (n = 4). Successful enteroscopic intubation occurred in 57 of 99 (57.6%) procedures. No perforation or severe pancreatitis occurred. Multivariable analysis showed that Roux-en-Y reconstruction was a risk factor for intubation failure (hazard ratio, 4.2; 95% confidence interval, 1.1–15.8; p = 0.033). Short SBE is efficacious and safe in patients with postsurgical anatomy. Roux-en-Y reconstruction adversely affects the success of short SBE intubation.