1984 Volume 75 Issue 10 Pages 1658-1664
Case 1: an 8-year-old girl was admitted with chief complaints of recurrent acute pyelonephritis and enuresis to have diagnosed as distal urethral stenosis after clinical examinations including urodynamic study. Transurethral resection of the bladder neck and urethral dilation were carried out. Case 2: a 9 year-old-boy was admitted with chief complaints of turbid urine and intermittent fever attack to have diagnosed as so-called megacystis syndrome proposed by Paquin et al. after various examinations including urodynamic study. Bilateral nephrostomy was performed in this case.
Both of these cases were found to have severe vesicoureteral reflux and marked hydronephrosis despite the different clinical diagnoses. Urodynamic studies demonstrated an abnormally high intraurethral pressure and the pathophysiology that there was no detrusor-sphincter dyssynergia with a functional urethral obstruction. These findings were interesting in relations to the pathogenesis of congenital passage-disturbance of the lower urinary tract and the importance of urodynamic studies about the lower urinary tract for pediatric dilated ureters was stressed.
