Figure 3. Kidney function of transplant recipients before and after surgery. (A) Serum creatinine showed a trend towards absolute lower levels in the PCR-group throughout the first 14 days after surgery. (B) Relative creatinine levels, calculated using POD-1 as cutoff value, showed a trend as from POD4 up to POD14. (C) Following the creatinine clearance, eGFR also showed a trend towards improvement in the PCR-group throughout the first days after surgery. Values are depicted as median ± interquartile range. PCR = protein and caloric dietary restriction; POD = postoperative day; POMo = postoperative month; eGFR = estimated glomerular filtration rate using the CKD-EPI formula.