Aims: New Zealand follows the guideline that only patients with projected five-year survival of 80% are listed for deceased donor kidney transplantation. An algorithm derived from US data estimates survival after transplantation, however, this may not be as applicable to the New Zealand population. We review use of the US derived algorithm in New Zealand. We assessed accuracy of scores calculated by referring units and audited whether the system is applied in New Zealand.
Methods: Data on 422 patients assessed for transplantation was entered into the algorithm to calculate a projected survival score. Scores were generated by an independent investigator and compared with those calculated by local units. Scores and demographics of listed and not-listed patients were also compared.
Results: Three hundred and twenty-five of 420 (77%) patients assessed were accepted onto the New Zealand transplant list. Mean estimated five-year survival in listed patients was 89.4% compared to 79.8% in those not accepted (p<0.0001). Listed patients were younger and less likely to have coronary artery disease (CAD). There was no significant difference in scores calculated by the independent assessor and referring centres (p=0.185).
Conclusion: The algorithm is universally and accurately used. Future studies are required to determine the validity of the system in New Zealand patients.