ABO Incompatible Kidney Transplantation in Children

We have performed 7 pediatric kidney transplantations from living related donors of ABO incompatibility. All patients preoperatively underwent plasmapheresis with or without immunoadsorption to reduce anti-A and/or anti-B antibodies. Immunosuppression initially consisted of methylprednisolone, cyclosporine, azathioprine, antilymphocyte globulin and deoxyspergualin. At transplantation splenectomy was simultaneously performed in all patients. Median followup is 44 months (range 31 to 58). Patient and graft survival rates are 100 percent to date. There were no uncontrolled vascular rejection episodes, and post-transplant anti-A and/or anti-B antibody titers were always less than 1:32. Transplantation across the ABO blood barrier remains challenging today. However, our small series clearly shows that the preoperative reduction of ABO antibody, simultaneous splenectomy and strict immunosuppressive therapy cause successful long-term results in children.