Parathyroid and Thymus Transplantation in DiGeorge #931

Thymus tissue, thymus donor, mother of thymus donor, \& parental parathyroid donor screened for transplant safety. Depending on T cell phenotype \& function, subjects were given 1 of 2 immunosuppression regimes. All received rabbit anti thymocyte globulin pretransplantation. Others also received cyclosporine pre \& post-transplantation. The thymus dose was over 0.2 grams/kg recipient weight. Thymus transplant occurred in operating room; thymic slices were placed in quadriceps. Parathyroid harvest was done under general anesthesia. One parathyroid gland was minced and placed in quadriceps muscle. There was no dose in mg. An open biopsy of thymus allograft was done 2-3 months post-transplant. Biopsy tissue was examined by immunohistochemistry to evaluate for thymopoiesis \& graft rejection.