Pediatric Nephrology

, Volume 21, Issue 7, pp 1027–1030 | Cite as

Hyponatraemic–hypertensive syndrome in a 15-month-old child with renal artery stenosis

  • Daniela SeraciniEmail author
  • Ivana Pela
  • Silvia Favilli
  • Roberta M. Bini
Brief Report


In this report we present the case of a 15-month-old girl with hyponatraemic–hypertensive syndrome (HHS) caused by stenosis of the left renal artery. On sonographic examination the contralateral non-stenotic kidney appeared enlarged and with cortical hyperechogenicity mimicking a parenchymal lesion. After successful percutaneous transluminal angioplasty, when the girl became normotensive, her serum electrolyte and acid–base balance became normal within a few days. The contralateral non-stenotic kidney hyperechogenicity also disappeared, but only after a period of 6 months, suggesting parenchymal damage due to tubulointerstitial injury, even though reversible. Our case confirms that renovascular hypertension may rarely also be present with HHS in children and that metabolic and morphological alterations are reversible after the resolution of arterial stenosis.


Reno-vascular hypertension Percutaneous transluminal angioplasty Hypokalaemia Cortical hyperechogenicity Hyponatraemic hypertensive syndrome 


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Copyright information

© IPNA 2006

Authors and Affiliations

  • Daniela Seracini
    • 1
    Email author
  • Ivana Pela
    • 1
  • Silvia Favilli
    • 2
  • Roberta M. Bini
    • 2
  1. 1.Paediatric NephrologyMeyer HospitalFlorenceItaly
  2. 2.Paediatric CardiologyMeyer HospitalFlorenceItaly

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