Abstract
Massive enterectomy was undertaken in a patient with thrombotic occlusion in the superior mesenteric arterial root associated with midgut necrosis, and the patient survived. The patient, a 72-year-old man, had severe epigastralgia as the first manifestation of this condition, and 14 hours later he underwent an emergency laparotomy. The intestinal tract had shown necrosis of the area ranging from the jejunum to the transverse colon. Since the condition was diagnosed as midgut necrosis, massive enterectomy involving the necrosed intestinal tract was undertaken. The patient overcame complications such as sepsis, and at present he is under satisfactory nutritional control by means of an artificial intestinal system. The results of treatment for occlusion of the superior mesenteric arterial root are poor, but for improvement of the survival rate for this disease, it is important to make an early clinical diagnosis and to perform laparotomy in suspected cases.