<qa>  What is the name of the type of transplant that has been successful?Kidney transplantation has emerged as a desired treatment of choice for patients with end stage renal disease. Although transplantation has become increasingly successful, there continues to be risks associated with it. Prior to performing a kidney transplant patients are cross-matched a test to determine whether or not they have preformed antibodies to the donor. Preformed antibodies result from a previous pregnancy, blood or platelet transfusion or prior transplant. Performing a transplant in patients who have preformed antibodies against the donor generally results in hyperacute rejection when the immune system attacks the new kidney. This hyperacute rejection usually results in kidney loss in a very high percentage of patients. Due to these consequences, pre-transplant cross-matching has emerged as a standard of care. Although hyperacute kidney loss has now been avoided, a large population of highly sensitized patients that has little hope of receiving a transplant has been identified. 