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Multivisceral Transplantation in Martinez-Frias Syndrome: first case in the literature

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Aim:Martinez-Frías Syndrome (MFS) is a very rare condition with autosomal recessive inheritance, firstlydescribed in1992.Themost frequentpatternsarehypoplastic pancreas, intestinal atresia and gallbladder aplasia/hipoplasia, probably due to a midline disorder affecting the development… Click to show full abstract

Aim:Martinez-Frías Syndrome (MFS) is a very rare condition with autosomal recessive inheritance, firstlydescribed in1992.Themost frequentpatternsarehypoplastic pancreas, intestinal atresia and gallbladder aplasia/hipoplasia, probably due to a midline disorder affecting the development of the duodenal-biliarypancreatic junction. Esophageal atresia and/or neonatal diabetes can be associated. There are few cases described in the literature, all with poor prognosis, mainly due to the progression of the liver disease. We present one girl with this condition who was succesfully transplanted. Case report: Female neonatal infant weighing 2200 g, 35 weeks of gestational age, with intrauterine growth retardation, and Spanish consanguineous gypsy parents. Physical examination did not show external abnormalities. A laparotomy due to intestinal obstruction was necessary within the first 24 hours of life, revealing duodenal atresia, intestinal malrotation type I, and gallbladder agenesia. Although surgery was uneventful, she developed refractory diabetes andpancreatic exocrine insufficiency, requiringparenteral nutrition formonthswith growth delay and multiple sepsis due to central line infections (12 episodes). The genetic study showed a mutation on 16q22.1 involving the gene RFX6. Shewas listed for multivisceral transplant, andwas transplanted at 15months of age, with no major postoperative complications. Her native spleen was preserved, and colon was included in the graft. The enterectomy revealed a patched substitution of the intestinal mucosa by gastric mucosa, and pancreatic hypoplasia with absence of islets and few neuroendocrine cells. Induction protocol consisted of Basiliximab, Tacrolimus with steroids were given for maintenance. Due to renal insufficiency and hypertension, conversion to Sirolimus was decided one year after transplantation, first combined with Tacrolimus, and later as monotherapy. After more than 5 years since transplant, the patient has not suffered any rejection, GVHD or PTLD episode. She is 6 yo, off parenteral nutrition, has a normal diet, with one bowel movement/day, with no malabsorption, just mild iron deficiency and enjoys a normal life. Conclusion: This is the longest survivor withMFSdescribed in the literature. Multivisceral transplantation seems to be an available option for these children although future will determine if the disease is totally cured.

Keywords: multivisceral transplantation; transplantation martinez; literature multivisceral; case; martinez frias; transplantation

Journal Title: Transplantation
Year Published: 2017

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