Abstract
Afferent loop syndrome after gastrectomy and Billroth II reconstructon is an uncommon problem. Especially, acute afferent loop syndrome requires emergent treatment. We presented a patient who developed acute abdominal pain, marked hyperamylasemia 12 years after Eillroth II gastrectomy. Abdominal computed tomography revealed a marked dilated afferent loop and he was diagnosed to have acute afferent loop syndrome. Emergent upper GI endoscopy was performed. Endoscope could be entered the afferent loop and the color of duodenal mucosa was normal. After endoscopy, these symptoms were improved and the dilatation of the afferent loop disappeared. It is considered that emergent endoscopy is a useful method for the diagnosis and treatment of afferent loop syndrome.
