Importance of prenatal detection of hydronephrosis of the upper pole

AJR. American Journal of Roentgenology
W D Winters, R L Lebowitz

Abstract

To determine the impact of prenatal detection on neonates with hydronephrosis of the upper pole of a duplex collecting system, we reviewed 40 such cases seen between June 1982 and April 1989. This six-per-year rate contrasts with fewer than one case per year that was seen at our hospital from 1947 to 1977. Nineteen patients had an ectopic ureterocele, and 21 had an ectopic ureter without a ureterocele. Thirty-three (83%) were girls. Thirty-three cases were discovered because of abnormal findings on a prenatal sonogram, and 20 of those infants were asymptomatic. In the 33 patients whose prenatal sonographic findings were abnormal, the sonogram was diagnostically precise for hydronephrosis of the upper pole of a duplex collecting system in only 39%. This imprecision did not adversely affect management or outcome. Postnatal sonography modified the prenatal diagnosis in 75% of these 33 patients. Voiding cystourethrography was the most sensitive and precise imaging technique for detecting both ureterocele and reflux. Lower pole reflux was almost twice as common when an ectopic ureterocele was present (63%) than when one was not (33%). Prenatal sonographic detection of hydronephrosis of the upper pole of a duplex collecting system de...Continue Reading

Citations

Apr 1, 1996·Prenatal Diagnosis·S H GarmelM E D'Alton
Jan 1, 1997·Pediatric Surgery International·G T RoyR C Cohen
May 3, 2000·BJU International·A A Shokeir, R J Nijman
Aug 1, 1996·Acta Paediatrica Japonica; Overseas Edition·M HiraokaM Sudo
Dec 6, 2001·Pediatric Clinics of North America·S J Kraus
Apr 22, 2003·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·S M WhittenL S Chitty
Aug 7, 2003·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Waldo SepulvedaJorge Rodriguez
Aug 1, 1994·Seminars in Ultrasound, CT, and MR·J M Zerin

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