Abstract
A 66-year-old man underwent a total gastrectomy for gastric cancer with a Roux-en-Y (R-Y) reconstruction. The R-Y anastomosis was performed using a 21-mm circular stapler. He presented to our hospital with dysphagia 7 months postoperatively. Abdominal computed tomography showed a markedly dilated afferent loop extending between the stapled end of the R-Y anastomosis and the duodenal stump, and he was diagnosed with afferent loop syndrome secondary to R-Y anastomotic stenosis. Single-balloon endoscopy revealed the stenosis, for which balloon dilation was performed. He showed an unremarkable clinical course and was discharged on postoperative day 5. This case suggests that endoscopic balloon dilation is a minimally invasive and effective treatment option for afferent loop syndrome secondary to R-Y anastomotic stenosis.
