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A proctosigmoidectomy, Hartmann's operation or Hartmann's procedure is the surgical resection of the rectosigmoid colon with closure of the anorectal stump and formation of an end colostomy. It was used to treat colon cancer or inflammation (proctosigmoiditis, proctitis, diverticulitis, volvulus, etc.).
A surgical anastomosis is a surgical technique used to make a new connection between two body structures that carry fluid, such as blood vessels or bowel. For example, an arterial anastomosis is used in vascular bypass and a colonic anastomosis is used to restore colonic continuity after the resection of colon cancer .
Suture anastomosis of sigmoid colon. When the resection is complete, the surgeon has the option of reconnecting the bowel by stitching or stapling together the cut ends of the bowel (primary anastomosis) or performing a colostomy to create a stoma, an opening of the bowel to the abdominal wall that provides an alternate exit for the contents of ...
In human anatomy, the inferior mesenteric artery (IMA) is the third main branch of the abdominal aorta and arises at the level of L3, supplying the large intestine from the distal transverse colon to the upper part of the anal canal. The regions supplied by the IMA are the descending colon, the sigmoid colon, and part of the rectum. [1]
Less commonly there may be ulcers in the anal canal or even in the sigmoid colon. [5] The nature of the tissue changes can vary from simple erythema (redness) / hyperaemia (increased blood flow) of the mucosa in 18% of cases, [ 1 ] to a chronic-appearing, small, shallow ulcer with nodular margins and a white or sloughing base.
A bowel resection or enterectomy (enter-+ -ectomy) is a surgical procedure in which a part of an intestine (bowel) is removed, from either the small intestine or large intestine. Often the word enterectomy is reserved for the sense of small bowel resection, in distinction from colectomy , which covers the sense of large bowel resection.
Colostomy or ileostomy is now rarely performed for rectal cancer, with surgeons usually preferring primary resection and internal anastomosis, [3] e.g. an ileo-anal pouch. In place of an external appliance , an internal ileo-anal pouch is constructed using a portion of the patient's lower intestine, to act as a new rectum to replace the removed ...
The sigmoid colon is completely surrounded by peritoneum (and thus is not retroperitoneal), which forms a mesentery (sigmoid mesocolon), which diminishes in length from the center toward the ends of the loop, where it disappears, so that the loop is fixed at its junctions with the iliac colon and rectum, but enjoys a considerable range of movement in its central portion.