Inherited renal tubular dysgenesis may not be universally fatal.
Pediatr Nephrol
; 25(12): 2531-4, 2010 Dec.
Article
em En
| MEDLINE
| ID: mdl-20607303
ABSTRACT
Inherited renal tubular dysgenesis (RTD) is caused by mutations in the genes encoding components of the renin-angiotensin cascade angiotensinogen, renin, angiotensin-converting enzyme (ACE), and angiotensin ΙΙ receptor type 1. It is characterized by oligohydramnios, prematurity, hypotension, hypocalvaria, and neonatal renal failure. The histological hallmark is the absence or poor development of renal proximal tubules. Except for a few cases, the prognosis has been thought to be universally poor, with patients dying either in utero or shortly after birth. We report a 3-year-old infant diagnosed clinically with RTD. The infant survived the neonatal period after 2 weeks of anuria subsequently subsiding. Hypotension and hyperkalemia normalized eventually with administration of fludrocortisone. A revision of renal tissue obtained from a sibling that died shortly after birth revealed normal glomeruli and distal tubules but no identifiable proximal tubules. A novel mutation in the ACE gene was found in the surviving child, who remains with stage 4 chronic kidney disease and normal neurodevelopment. As the number of surviving cases of RTD increases, it should be emphasized to the parents and the neonatal care team that it may not be universally fatal as previously reported. A trial of fludrocortisone may correct hyperkalemia and hypotension.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peptidil Dipeptidase A
/
Mutação
Tipo de estudo:
Prognostic_studies
Limite:
Child, preschool
/
Female
/
Humans
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Male
/
Pregnancy
Idioma:
En
Revista:
Pediatr Nephrol
Assunto da revista:
NEFROLOGIA
/
PEDIATRIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Israel