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  • Title: Radiographic and serologic correlates of azotemia in patients with posterior urethral valves.
    Author: Merguerian PA, McLorie GA, Churchill BM, McKenna PH, Khoury AE.
    Journal: J Urol; 1992 Nov; 148(5):1499-503. PubMed ID: 1433557.
    Abstract:
    A retrospective statistical analysis with a minimum followup of 10 years was done on 102 patients who presented in early childhood with posterior urethral valves. All patients were treated with initial bladder drainage. Factors correlating with the development of renal failure were evaluated. No patient with a normal kidney on 1 side had renal failure. Calculated glomerular filtration rate was significantly higher in patients who retained adequate renal function (80.7 +/- 17.8 ml. per minute per 1.73 m.2), as compared with those who had renal failure (18.6 +/- 9.6 ml. per minute per 1.73 m.2). Patients with renal failure also had a significantly higher serum creatinine level at stabilization (2.0 +/- 0.8 mg./dl.) than those who had adequate renal function (0.5 +/- 0.2 mg./dl.). The presence of bilateral high grade vesicoureteral reflux, hydronephrosis and nonfunction was significantly higher in patients with renal failure. Patient age at presentation was not a significant factor. These data represent a guideline for the prognosis and management protocols of infants with dilated upper urinary tracts and posterior urethral valves.
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