Utilidad clínica de la reserva funcional renal

RFR test may represent a sensitive and early way to asses kidney functional decline and recovery. In cases of healing with a defect and fibrosis, clinical assessment may suggest a complete recovery, but a reduced RFR may be a sign of a maladaptive repair or sub-clinical loss of renal mass. Therefore, a reduction of RFR may represent the equivalent of renal frailty or susceptibility to insults. The main aim of this article is to review the concept of RFR, its utility in different clinical scenarios and future perspective for its use.