Dissertation > Medicine, health > Surgery > Of surgery > Abdominal surgery > Small intestine

Rat heterotopic small bowel transplant rejection reaction of immune tolerance in rats

Author LuoShiCheng
Tutor ShiDe
School Chongqing Medical University
Course Surgery
Keywords Small intestine Spleen Transplant Rats Animal Model Surgical techniques
CLC R656.7
Type PhD thesis
Year 2003
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Objective To explore the rat heterotopic small bowel transplantation and perioperative management experience , rat spleen and intestinal combined transplantation of animal models . Method microsurgical technique , the entire cut for intestinal small bowel , portal vein and the abdominal aorta with superior mesenteric artery proximal . Spleen and intestine joint transplant recipients , including the spleen and small intestine , abdominal aortic reserves the superior mesenteric artery , splenic artery branch of the celiac artery , portal vein splenic vein branch reserved . Spleen intestinal surgery situ perfusion and intestine lavage . Cycle reconstruction : arterial anastomosis donor with the superior mesenteric artery and celiac artery branch of abdominal aortic segment spleen and the recipient abdominal aortic end side anastomosis ; venous anastomosis using micro- tube technology will be available for intestinal portal vein and the recipient left renal vein anastomosis . The intestinal graft abdominal wall at both ends of double stoma . Surgery for receptor tail skin incision , trocar tail vein puncture infusion, to rewarming , antibacterial treatment after surgery . Results 165 surgeries , 38 of them familiar with the anatomy and surgical skills training . Pre-experiment 86 times transplantation, in which the spleen and intestinal combined transplantation 20 . The formal experiment 41 times transplantation, spleen and intestinal combined transplantation 8 , 30 survived more than 10 days , and completed the experimental study , the success rate of 73.2% . Reason for the failure : arterial anastomotic bleeding 2 and two abdominal infection ascites , the arterial anastomotic thrombosis transplanted intestinal necrosis 2 , 3-5 days after transplantation intestinal bleeding 5 . Cold ischemia time control within 1 hour of warm ischemia time of 24 ± 11 minutes, and the entire procedure for one person to operate , the operation time of about 4 hours . The conclusions for intestinal vascular anastomosis technique , intraoperative blood volume to maintain , as far as possible Less lt ; WP = 9 gt ; less warm ischemia time is the key to the success of small bowel transplantation in rats . With celiac artery splenic artery and the superior mesenteric artery segment of the abdominal aorta and donor abdominal aorta end to side anastomosis ; consistent with splenic vein , portal vein and the donor left renal vein casing surgical methods , to establish a stable rat spleen and intestinal combined transplantation of animal models .

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