Re: Diagnostic Accuracy of Renal Pelvic Dilatation in Determining Outcome of Congenital Hydronephrosis

Dear Editor, Sharifian and colleagues recently reported in the Iranian Journal of Kidney Diseases the diagnostic accuracy of postnatal renal pelvic dilatation in determining the outcome of prenatally-detected hydronephrosis in 178 newborns included in a 4-year period. In particular, the authors focused their research on the ability of a specific postnatal renal pelvic dimension to predict the need for postnatal surgery, ie, pyeloplasty. This is a welcome study, and it emphasizes the importance of following such newborns in the postnatal period, with renal ultrasonography and other appropriate imaging. However, after careful reading, we have the following comments to the authors.