J Korean Soc Pediatr Endocrinol.  2007 Jun;12(1):82-86.

A Case of Pseudohypoaldosteronism Type l Diagnosed after Infancy

Affiliations
  • 1Department of pediatrics, College of medicine, The Catholic university of Korea, Seoul, Korea.
  • 2Department of Pediatrics, Cheongju St.Mary's Hospital, Cheongju, Korea. daffod77@hotmail.com

Abstract

Pseudohypoaldosteronism (PHA) type l is a rare neonatal disease characterized by salt wasting, dehydration, hyperkalemia and metabolic acidosis. It is unresponsive to mineralocorticoid treatment with elevated aldosterone concentration. The three different modes of inheritance has been described. The autosomal dominant form has a mild clinical course and gradually improves with age. In this form, resistance to aldosterone seems to be restricted to the kidney. The autosomal recessive form displays generalized aldosterone resistance including kidney, colon, lung, sweat and salivary gland system. This form is more severe and requires life-long supplement with high-dose salt. The sporadic form is mild and resembles the autosomal dominant form. In this paper, we describe a male patient diagnosed as PHA type l at the age of 19 months. He presented with recurrent vomiting, diaphoresis accompanying hyponatremia, hyperkalemia, metabolic acidosis, elevated plasma renin activity and aldosterone level. Ultimately he has improved with treatment by oral sodium bicarbonate.

Keyword

Pseudohypoaldosteronism

MeSH Terms

Acidosis
Aldosterone
Colon
Dehydration
Humans
Hyperkalemia
Hyponatremia
Kidney
Lung
Male
Plasma
Pseudohypoaldosteronism*
Renin
Salivary Glands
Sodium Bicarbonate
Sweat
Vomiting
Wills
Aldosterone
Renin
Sodium Bicarbonate
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