Pseudohypoaldosteronism: Report of a Case Presenting as Failure to Thrive

Fabio Buzi, Tito Bezante, Agostino Brunori, Luigi D. Notarangelo, Alberto G. Ugazio

Research output: Contribution to journalArticlepeer-review


We report a 2 month-old infant referred for failure to thrive. At birth, weight was 3820 g and length 52 cm. After physiologic weight loss, the patient showed no further weight gain for the next two months. On admittance (age 2 mo), weight was 3340 g and length 53 cm; the infant had severe dystrophy, generalized hypotonia and dehydration; blood chemistry showed hyponatremia, hyperkalemia and hypochloremia. A salt losing syndrome of adrenal origin was hypothesized. However, rehydration and hydrocortisone administration failed to correct hyponatremia and hyperkalemia. Endocrine assessment showed high levels of aldosterone and plasma renin activity, suggesting pseudohypoaldosteronism. Oral sodium chloride supplementation normalized electrolyte balance and the patient showed progressive weight gain and catch-up growth, confirming the diagnosis.

Original languageEnglish
Pages (from-to)61-66
Number of pages6
JournalJournal of Pediatric Endocrinology and Metabolism
Issue number1
Publication statusPublished - 1995

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism
  • Pediatrics, Perinatology, and Child Health


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