1981 Volume 34 Issue 6 Pages 624-630
There were two groups: (1) Obstructions were noted in the major branches of the mesenteric artery and marginal artery; (2) No obstruction was seen in the major branches of the mesenteric artery and marginal artery. All of obstructive type were gangrene type by Marston. Angiographies demonstrate multiple obstructions that cause irreversible segmental ischemia, and they are useful for diagnosis of obstructive type of ischemic colitis. On the other hand, angiographies of non obstructive type were quite non specific. There were seen dilated vasa recta, capillary brush and early venous drainage in about 60%. Improvement of these findings were detected by pharmacoangiography using Prostagrandin F2α 100μg. One case, supposed to be in healing stage, demonstrate decreased number of vasa recta and poor visualization of mesenteric vein. It seems to be caused by fibrosis. Ischemic colitis caused by non obstructive infarction, collagen disease, and obstruction of venous side were also mentioned.
