上腸系膜動脈症候群(superior mesenteric artery syndrome) 是上腸系膜動脈和主動脈之間的十二指腸遭受擠壓而引起的腸阻塞的病症。其處理通常以保守性治療及營養支持為優先考量，而當保守性治療失敗後才考慮手術。我們提供一則上腸系膜動脈症候群及腸阻塞的病例報告，其後成功接受十二指腸空腸吻合術(duodenojejunostomy) 治療。

Superior mesenteric artery (SMA) syndrome is a condition arising from the compression of the duodenum between the SMA and the aorta and subsequently causing bowel obstruction. Its initial management is usually conservative with nutritional support.  Surgical intervention is indicated when conservative management fails. We report a case with SMA syndrome and episodes of intestinal obstruction, which was successfully treated by duodenojejunostomy.