Abstract
Objective: Functional improvement after pyeloplasty in pediatric ureteropelvic junction obstruction (UPJO) is still debated, especially in poorly functioning kidneys. There is no consensus about the improvement of cases operated with poor renal function in the literature. In our study, we aimed to investigate whether there was an improvement after pyeloplasty in poor functioning cases.
Material and Methods: Thirteen of the 80 cases operated between January 2009 - December 2015 with poor renal function were evaluated in terms of preoperative and postoperative differential functions, renal antero-posterior diameter and parenchymal thickness. We determined whether improvement was present by comparing preoperative and postoperative findings.
Results: A total of 13 cases with differential renal function (DRF) less than 30% evaluated. Five of the cases were diagnosed after antenatal hydronephrosis, 4 after urinary tract infection and 4 following abdominal pain symptoms. Renal function improvement more than 5% was found in 3 of the 13 cases postoperatively. There was no statistically significant difference between preoperative to postoperative improvement of differential renal function in these series.
Conclusion: There was no change in postoperative renal function in cases with low functional UPJO after pyeloplasty in our series. It is important to perform pyeloplasty before significant loss of function during the follow-up, especially in patients who are monitored conservatively
Keywords: Ureteropelvic junction obstruction, Poor renal function, Pyeloplasty
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