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Exocrine drainage in vascularized pancreas transplantation in the new millennium

World Journal of Transplantation 2016年第2期6卷 255-271页

作者： Hany El-Hennawy Robert J Stratta Fowler Smith Depart-ment of Surgery Wake Forest School of Medicine

The history of vascularized pancreas transplantation largely parallels developments in immunosuppression and technical refinements in transplant surgery. From the late-1980 s to 1995, most pancreas transplants were whole organ pancreatic grafts with insulin delivery to the iliac vein and diversion of the pancreatic ductal secretions to the urinary bladder(systemic-bladder technique). The advent of bladder drainage revolutionized the safety and improved the success of pancreas transplantation. However, starting in 1995, a seismic change occurred from bladder to bowel exocrine drainage coincident with improvements in immunosuppression, preservation techniques, diagnostic monitoring, general medical care, and the success and frequency of enteric conversion. In the new millennium, pancreas transplants are performed predominantly as pancreatico-duodenal grafts with enteric diversion of the pancreatic ductal secretions coupled with iliac vein provision of insulin(systemic-enteric technique) although the systemic-bladder technique endures as a preferred alternative in selected cases. In the early 1990 s, a novel technique of venous drainage into the superior mesenteric vein combined with bowel exocrine diversion(portal-enteric technique) was designed and subsequently refined over the next ≥ 20 years to recreate the natural physiology of the pancreas with firstpass hepatic processing of insulin. enteric drainage usually refers to jejunal or ileal diversion of the exocrine secretions either with a primary enteric anastomosis or with an additional Roux limb. The portal-enteric technique has spawned a number of newer and revisited techniques of enteric exocrine drainage including duodenal or gastric diversion. Reports in the literature suggest no differences in pancreas transplant outcomes irrespective of type of either venous or exocrine diversion. The purpose of this review is to examine theliterature on exocrine drainage in the new millennium(the purported "enteric drainage

关键词： Pancreas transplantation Portal-enteric drainage Simultaneous pancreas-kidney transplant systemic-bladder drainage enteric conversion Solitary pancreas transplant systemic-enteric drainage

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