Are early prognostic indicators reliable in posterior urethral valves management?

In our environment, a child with initial creatinine value of less than 102 μmol/L may be classified as unlikely to develop ESRD. Additionally, a nadir creatinine greater than 89 μmol/L may increase the probability of developing ESRD. While nadir creatinine has consistently been identified as independent indicator of outcome, its value is evaluated after a year of management; however, early indicator like creatinine at diagnosis may provide essential monitoring information at the onset of treatment.