Evaluation of prenatally diagnosed hydronephrosis by morphometric measurements of the kidney

A large number of hydronephrotic kidneys (108) were diagnosed prenatally in 69 infants between 1987 and 1991 and subsequently confirmed postnatally. Prenatal morphometric measurements were done in order to find reliable parameters for the detection of a group at risk for surgical treatment. A second...

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Bibliographic Details
Published in:Pediatric radiology 1994-04, Vol.24 (2), p.131-134
Main Authors: BLACHAR, A, SCHACHTER, M, BLACHAR, Y, MOGILNER, B, ZURKOWSKI, L, LIVNE, P. M, PELET, D, APPLEMAN, Z, CASPI, B
Format: Article
Language:English
Subjects:
Algorithms
Anthropometry
Biological and medical sciences
Female
Fetal Diseases - diagnostic imaging
Fetal Diseases - etiology
Fetal Diseases - surgery
Follow-Up Studies
Gynecology. Andrology. Obstetrics
Humans
Hydronephrosis - diagnostic imaging
Hydronephrosis - etiology
Hydronephrosis - surgery
Infant, Newborn
Kidney - diagnostic imaging
Kidney - pathology
Male
Management. Prenatal diagnosis
Medical sciences
Pelvis - pathology
Postnatal Care
Predictive Value of Tests
Pregnancy
Pregnancy Outcome
Pregnancy. Fetus. Placenta
Prospective Studies
Risk Factors
Ultrasonography, Prenatal
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Summary:A large number of hydronephrotic kidneys (108) were diagnosed prenatally in 69 infants between 1987 and 1991 and subsequently confirmed postnatally. Prenatal morphometric measurements were done in order to find reliable parameters for the detection of a group at risk for surgical treatment. A second aim of the study was to describe the natural history and management of hydronephrosis detected prenatally. We devised a classification of postnatal obstructive uropathy using ultrasonography and the renal scan. Accordingly, we classified the patients as having mild, moderate or severe hydronephrosis. A renal pelvic antero-posterior diameter (APD) of 9 mm or more, and a pelvic-to-renal APD ratio of 0.45 before 32 weeks of gestation and 0.52 thereafter, were found to be useful for the detection of severe outcome. Our new parameter, a pelvic-to-renal volume ratio of greater than 0.08, can also be used for this purpose.
ISSN:0301-0449
1432-1998
DOI:10.1007/BF02020171