Pediatric Nephrology

, Volume 21, Issue 5, pp 729–732 | Cite as

Foetal kidney maldevelopment in maternal use of angiotensin II type I receptor antagonists

  • Farida Daïkha-Dahmane
  • Evelyne Levy-Beff
  • Myriam Jugie
  • Richard Lenclen
Brief Report


We report renal lesions observed in a foetus exposed throughout pregnancy to angiotensin II type I (AT 1) receptor antagonists. The mother suffered from essential hypertension and was treated with Cozaar (losartan 50 mg). Autopsy examination of the foetus revealed severe renal lesions, including tubular dysgenesis, hypertrophy of the endothelial and medial cells lining the arterial and arteriolar walls, hyperplasia of the juxtaglomerular apparatus and poorly developed vasa recta. Similar lesions have already been observed in foetuses of women treated with angiotensin-converting enzyme antagonists and also in foetuses and neonates of animals undergoing experimental blockade of the renin–angiotensin system. The purpose of this report is to describe structural lesions observed in the kidneys, and, particularly, vascular lesions. Our results suggest that the use of AT 1 receptor antagonists during pregnancy may have a severe deleterious effect on kidney development in the foetus.


Fetal kidney AT 1 receptor antagonists Pregnancy 


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Copyright information

© IPNA 2006

Authors and Affiliations

  • Farida Daïkha-Dahmane
    • 1
  • Evelyne Levy-Beff
    • 1
  • Myriam Jugie
    • 2
  • Richard Lenclen
    • 2
  1. 1.Service d’Anatomie Pathologique/Unité de FoetopathologieCentre Hospitalier de Poissy-Saint Germain en LayePoissy CedexFrance
  2. 2.Service de Réanimation NéonataleCentre Hospitalier de Poissy-Saint Germain en LayePoissy CedexFrance

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