Renal function over time after heart transplantation. (A) There were no statistically significant differences in serum creatinine at 3, 6, 9, and 12 months after heart transplantation. At 1 month after heart transplantation, serum creatinine of the RRT group (1.7±0.8 mg/dL, mean±SD) was significantly higher than that of the non-RRT group (1.1±0.3 mg/dL, mean±SD) (P=0.039). (B) There were no statistically significant differences in CKD-EPI eGFR at 1, 3, 9, and 12 months after heart transplantation. At 6 months after heart transplantation, CKD-EPI eGFR of the RRT group (44.2±14.2 ml/min/1.73 m2, mean±SD) was significantly lower than that of the non-RRT group (69.2±14.2 ml/min/1.73 m2, mean±SD) (P=0.015). (C) Renal recovery rate over time was not significantly different between the RRT and the non-RRT groups when calculated by the log-rank test (p=0.051). * p<0.05 was considered statistical significance.