[Non-occlusive mesenteric ischemia]

Critical survey of functional anatomy of the upper mesenteric artery, patophysiology of the mesenteric ischemia, and the diagnostic procedures are assessed from the viewpoint of possibilities of operative correction and the author's hitherto experience in the upper mesenteric surgery. Comparison of diagnostic with operative management in two patients points to common causes of the disease, as well as to some of the preoperative misunderstandings. The indication for revascularization of the upper mesenteric artery and consequent amelioration of postoperative course in the patient with non-occlusive mesenteric ischemia is explained. Each of the described facts is of great importance for the postoperative course without fatal complications.