Characteristics of Recipients With 10 or More Years of Allograft Survival in Deceased Donor Kidney Transplantation

Abstract

BackgroundThe development of immunosuppressants improved the short-term outcomes of deceased donor kidney transplantation (DDKT), but the long-term survival rate was not improved. MethodsThe study included 127 patients who received first-time kidneys from deceased donors at Keimyung University Dongsan hospital between October 1994 and June 2007. We analyzed the clinical features of recipients with long-term allograft survival. ResultsThe mean follow-up period was 163 months. Among the 127 recipients, 53 (41.7%) maintained allograft survival for more than 10 years (AS group), 58 (45.7%) lost allograft function (AL group), and 16 (12.6%) were lost to follow-up. The 5- and 10-year allograft survival rates were 84.7% and 65.5%. The 5- and 10-year patient survival rates were 95.9% and 92.5%. The patient survival rate was significantly higher in the AS group than in the AL group. In the AS group, the use of basiliximab and mycophenolate mofetil (MMF) were significantly higher, and the number of HLA-DR mismatches and the incidence of rejection and infection were significantly lower. In multivariate Cox proportional hazards analysis, the use of MMF reduced the risk of allograft loss (hazard ratio [HR], 0.361; 95% confidence interval [CI], 0.172–0.757; P = .007). On the other hand, the incidence of rejection, hepatitis B virus-related liver cirrhosis (HBV-LC), and viral infection were independent risk factors for allograft loss (HR, 5.327; 95% CI, 2.813–10.090; P < .001; HR, 5.862; 95% CI, 1.891–18.168; P = .002; HR, 2.614; 95% CI, 1.355–5.043; P = .004, respectively). ConclusionFor long-term survival of allograft kidney in DDKT, it is important to use appropriate immunosuppressants including MMF and prevent complications such as rejection, HBV-LC, and viral infection.