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Congenital Urinary Tract Dilatation and Obstructive Uropathy

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Pediatric Urogenital Radiology

Part of the book series: Medical Radiology ((Med Radiol Diagn Imaging))

Abstract

The reported incidence of upper urinary tract dilatation (UTD) is 1–5.4 % of all pregnancies, dependent on the diagnostic criteria that are being applied, accounting to 60–120,000 children being diagnosed per year in the USA (Mallik and Watson 2008). Of these, around 25 % are persistent throughout birth (Barbosa et al. 2012). Sonographically detected intrauterine UTD can be observed in varying degrees in the 18th to 20th week of gestation. A prognostic cutoff level of prenatally diagnosed UTD on the basis of many studies has been determined; the risk of a significant UTDs after birth was linked to its prenatal manifestation (Nguyen et al. 2010): Whereas children with an anteroposterior renal pelvis diameter of ≥15 mm have a risk of 75 % of persistence after birth, in children with an anteroposterior renal pelvis diameter of ≤9 mm, it amounts to only 10 % (Benfield et al. 2003). The risk for later surgery is connected also with the grade of the prenatal urinary tract dilatation (Fig. 1).

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Authors and Affiliations

  1. Department of Pediatric Urology, Hospital of the Sisters of Charity, Linz, Austria

    Josef Oswald FEAPU & Bernhard Haid FEAPU

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  1. Josef Oswald FEAPU
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  2. Bernhard Haid FEAPU
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Correspondence to Josef Oswald FEAPU .

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Editors and Affiliations

  1. Division of Pediatric Radiology, University Hospital, LKH Graz, Graz, Austria

    Michael Riccabona

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Oswald, J., Haid, B. (2018). Congenital Urinary Tract Dilatation and Obstructive Uropathy. In: Riccabona, M. (eds) Pediatric Urogenital Radiology. Medical Radiology(). Springer, Cham. https://doi.org/10.1007/978-3-319-39202-8_14

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  • DOI: https://doi.org/10.1007/978-3-319-39202-8_14

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-39200-4

  • Online ISBN: 978-3-319-39202-8

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