An experimental pathologic study of acute small intestinal isechmia in mongrel dogs. Occluded proximal site of anterior mesenteric artery by balloon catheter.:Occluded proximal site of anterior mesenteric artery by balloon catheter

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We prepared experimental of small intestinal ischemia by occluding the inlet of the anterior mesenteric artery of adult mongrel dogs with balloon catheters.With these experimental models, the degree of tissue damage of the small intestinal mucosa, which became ischemic, was studied according to the different occlusion times of the anterior mesenteric artery (3, 5, 7, 10, 15 and 30 hours). As a result, ischemic mucosal lesions in the small intestine at an initial stage occurred on the antimesenteric side. In the gross findings of the mucosa when the occlusion time was within 5 hours, linear and spotted lesions appeared in a zone on the antimesenteric side. When the occlusion time was 7 hours or more, these lesions fused and the entire intestinal mucosa became a hemorrhagic lesion. By occluding the anterior mesenteric artery for 22-30 hours, all 6 experimental ischemic animals died.
財団法人日本消化器病学会の論文