Experimental stadies on the circulatory disturbance of the lower colom due to the ligation of A. meseterica caudalis. Part Ⅱ Experimental study on the blood supply after Amputatio-recti and Anterior resection on high ligation of A. mesenterica caudalis

From the Ⅱ surgical department of the Okayama University Medical School. Director; formerly; Prof emeritus Seiji Tsuda, M.D. present; Prof. Terutake Sunada, M. D. The arterial arrangements and the collateral circulation have been studied after the high ligation of the inferior mesenterie artery and the anterior resection of the sigmoid colon and amputatio-recti in 15 dogs. The dogs were killed at various intervals and injected with a radiopaque medium through the thoratic aorta. Arteriographs were taken of the specimen. The collateral circulation after the anterior resection of sigmoid colon and amputatiorecti, has not been interrupted, and and necrotic change and insuficiency were not morphologically & histologically recognized. The anal function in the amputatio-recti with preservation of the sphincter has been recovered in 2 weeks after the Operation.