The particular problems of nonocclusive mesenteric vascular insufficiency are discussed on the basis of reports in the literature and 4 patients observed by the authors. Diminution in splanchnic blood flow as a manifestation of splanchnic compensation to low cardiac output seems to be the most common cause. The symptoms are described and the necessity for early diagnosis and immediate treatment are stressed. Our results of treatment in 4 patients with nonocclusive mesenteric vascular insufficiency are presented.
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