A Simple Method of Intestinal Anastomosis (Ileocolostomy) in Rats

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  • INOMATA Tomo
    Department of Laboratory Animal Science, School of Veterinary Medicine, Azabu University
  • NINOMIYA Hiroyoshi
    Department of Laboratory Animal Science, School of Veterinary Medicine, Azabu University
  • MIZUTANI Tomoyuki
    Department of Laboratory Animal Science, School of Veterinary Medicine, Azabu University
  • MORI Yuko
    Department of Laboratory Animal Science, School of Veterinary Medicine, Azabu University
  • KASHIWAZAKI Naomi
    Department of Animal Reproduction, School of Veterinary Medicine, Azabu University
  • KIUCHI Akio
    Department of Veterinary Microbiology, School of Veterinary Medicine, Azabu University
  • NAGAI Tetsushi

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  • Simple Method of Intestinal Anastomosis Ileocolostomy in Rats

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Abstract

A simple method of ileocolostomy was performed in rats. The colon near the cecum was ligated, including its arteries and veins. Main artery and vein of the cecum were ligated. Then, the cecum was cut out. A longitudinal incision was made on the anti-mesenteric side of the proximal end of the colon, approximately 7-8 mm long. A 21-G needle was inserted toward the incision 2 cm away from the proximal end of the anti-mesenteric side of the colon. A nylon suture was knotted once to the distal end of the ileum and was introduced into the tip of the needle which had previously been passed through the colon. Then, the needle was removed. The suture was pulled to introduce the distal end of the ileum into the colonic lumen. Then, the suture was knotted once on the colon again to fix the ileum to the colon. The incision in the proximal end of the colon was not closed. At the 2nd week after the operation, X-ray examinations demonstrated that the ileocolonic passages with no leakage at the anastomotic site were quite satisfactory. At the 4th week after the operation, there were no macroscopic or microscopic complications at the anastomotic site. The mucosal and serosal epithelia of the ileum and colon continued smoothly. This simple method may be very effective in preparing anastomosis in the gastrointestinal tract, especially in small laboratory animals for nutritional and surgical experiments.<br>

Journal

  • Experimental Animals

    Experimental Animals 54 (2), 117-122, 2005

    Japanese Association for Laboratory Animal Science

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