Growth failure in an infant with congenital nephrogenic diabetes insipidus during sodium restriction

Goro Sasaki, Tomohiro Ishii, Naoko Amano, Rumi Hachiya, Satoshi Narumi, Tomonobu Hasegawa

Research output: Contribution to journalArticle

Abstract

Congenital nephrogenic diabetes insipidus (CNDI) is an inherited disorder characterized by renal tubular insensitivity to antidiuretic hormone, resulting in an inability to concentrate urine. We report on an infant boy with CNDI who showed growth failure during treatment with sodium restriction. At the age of 4 mo, he was diagnosed as having CNDI, judging from fever with hypernatremia (serum Na 153 mEq/L), diluted urine (urine osmolarity 193 mOsm/kg), high antidiuretic hormone (plasma antidiuretic hormone 53 pg/mL), and normal renal function (serum creatinine 0.3 mg/dL). His length and weight were mean +0.4 and -1.1 SD, respectively, at that time. He was treated with sodium restriction (sodium intake; 0.53 mEq/kg/day) using low sodium formula in addition to trichlormethiazide, spironolactone, and mefenamic acid. Growth failure developed: his length and weight were mean -2.4 and -3.3 SD, respectively, at the age of 10 mo. After withdrawal of sodium restriction to 1.5 mEq/kg/day of sodium intake without any change of caloric intake and medication, catch-up growth was observed. At the age of 39 mo, the patient's height and weight were mean -0.8 and -0.6 SD, respectively. We conclude that excessive sodium restriction can cause growth failure in infants with CNDI. Copyright

Original languageEnglish
Pages (from-to)95-98
Number of pages4
JournalClinical Pediatric Endocrinology
Volume16
Issue number4
DOIs
Publication statusPublished - 2007

Fingerprint

Nephrogenic Diabetes Insipidus
Sodium
Growth
Vasopressins
Urine
Weights and Measures
Trichlormethiazide
Mefenamic Acid
Hypernatremia
Kidney
Spironolactone
Energy Intake
Treatment Failure
Serum
Osmolar Concentration
Creatinine
Fever

Keywords

  • Congenital nephrogenic diabetes insipidus
  • Growth failure
  • Sodium restriction

ASJC Scopus subject areas

  • Endocrinology
  • Pediatrics, Perinatology, and Child Health

Cite this

Growth failure in an infant with congenital nephrogenic diabetes insipidus during sodium restriction. / Sasaki, Goro; Ishii, Tomohiro; Amano, Naoko; Hachiya, Rumi; Narumi, Satoshi; Hasegawa, Tomonobu.

In: Clinical Pediatric Endocrinology, Vol. 16, No. 4, 2007, p. 95-98.

Research output: Contribution to journalArticle

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