الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Colorectal (CRA) or coloanal (CAA) anastomoses are often performed by colon and rectal surgeons for a variety of purposes; the proximal colon should be sufficiently long to provide a tension-free anastomosis and well-perfused in order to reduce the possibility of anastomotic leakage. Nonetheless, following left colectomies, there are situations that preclude using the left colon for a low pelvic or rectal anastomosis. These situations include those involving prior left-sided colonic resection, concurrent pathology in the left colon and rectum, diseased left colons like diverticular disease, or inadequate blood supply. Because the center and right colic pedicles are so short, the transverse colon cannot be employed in this situation. Moreover, once these blood vessels split, the transverse colon’s blood supply would become inadequate, necessitating its excision to prevent the remaining right colon stump from exerting undue strain on the distal rectal stump.
To restore colon continuity without strain, a total colectomy with an ileorectal anastomosis is one of the conventional surgical approaches. However, postoperative functional outcomes are not as good as those obtained with a colorectal anastomosis with ileocaecal junction sparing.