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Small Bowel

Small Bowel Surgery

Small Bowel Resection
With End-to-End
Anastomosis Using the Gambee Technique

Small Bowel Bypass
With Ileoileal
Anastomosis and
Mucous Fistula

Small Bowel Bypass
With Ileotransverse
Colostomy and Mucous

Terminal Ileectomy
With Right Colectomy
and Ileotransverse

Small Bowel Bypass With
and Mucous Fistula

Ileotransverse colostomy with mucous fistula is utilized when the disease process involves the major portion of the terminal ileum plus the ascending colon. The transverse colon may be the ideal site for a small bowel bypass, since it has had little if any ionizing irradiation. Anastomosis at this site reduces the length of colon available for the absorption of intestinal contents, however, and the patient must adapt to living with a more liquid fecal stream than if additional colon were usable. The technique for performing the operation is similar to the other small bowel bypasses with end-to-end anastomosis of the ileum into the colon.

The purpose of the operation is to reestablish intestinal continuity and bypass the diseased segment of small intestine.

Physiologic Changes. Once the anastomoses are begun between the small bowel and the transverse colon, the length of colon available for absorption of intestinal contents is reduced. This is particularly true if the disease process is such that a diverting cutaneous colostomy is needed. The patient can "run out" of colon. Care must be taken to ensure that at least 20-25 cm of colon are available for anastomosis. There will be a marked difference in the quality of life for the patient if sufficient colon is available to absorb fluid from the fecal stream and produce a firm stool rather than a continuous flow of liquid.

Points of Caution. The points of caution are the same as for other small bowel bypasses. Care must be taken to avoid spillage of raw stool into the peritoneal cavity. Preoperative antibiotics should be used. The peritoneal cavity should be thoroughly lavaged after the procedure. A closed suction drain should be placed adjacent to the anastomosis.


The technique for ileotransverse colostomy with mucous fistula is similar to that for the ileoascending colostomy with mucous fistula.

The bowel proximal to the diseased segment is identified and elevated, its mesentery is opened, and the vessels are clamped and tied. The bowel is transected in an oblique fashion.

The proximal bowel is brought to a convenient site on the transverse colon. The site should be selected as far proximal on the large bowel as possible. This will supply a greater length of colon for absorption of fluid from the fecal stream.

The colon is cross-clamped with linen-shod intestinal clamps. The cross-clamped piece of proximal small bowel is brought adjacent to the opening made over the teniae coli on the antimesenteric surface of the colon.

The technique for anastomosis of the small bowel to the colon in an end-to-side fashion is the same as shown previously, demonstrating the Gambee anastomosis technique with an ileoileostomy and mucous fistula.

The distal small bowel has been exteriorized through the anterior abdominal wall via the lower midline incision, and a stoma has been created. The completed anastomosis from the small bowel to the transverse colon is shown. The abdomen has been closed.


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