Hyponatremia in infants with community-acquired infections on hospital admission

Marta B. Mazzoni, Gregorio P. Milani, Silvia Bernardi, Ludovica Odone, Alessia Rocchi, Emanuela A. D'Angelo, Marco Alberzoni, Carlo Agostoni, Mario G. Bianchetti, Emilio F. Fossali

Research output: Contribution to journalArticle

Abstract

Acute moderate to severe gastroenteritis is traditionally associated with hypernatremia but recent observations suggest that hypernatremia is currently less common than hyponatremia. The latter has sometimes been documented also in children with acute community-acquired diseases, such as bronchiolitis and pyelonephritis. We investigated the prevalence of dysnatremia in children with acute moderate severe gastroenteritis, bronchiolitis and pyelonephritis. This prospective observational study included 400 consecutive previously healthy infants ≥4 weeks to ≤24 months of age (232 males and 168 females): 160 with gastroenteritis and relevant dehydration, 160 with moderate-severe bronchiolitis and 80 with pyelonephritis admitted to our emergency department between 2009 and 2017. Circulating sodium was determined by means of direct potentiometry. For analysis, the Kruskal-Wallis test and the Fisher's exact test were used. Hyponatremia was found in 214 of the 400 patients. It was common in gastroenteritis (43%) and significantly more frequent in bronchiolitis (57%) and pyelonephritis (68%). Patients with hyponatremia were significantly younger than those without hyponatremia (3.9 [1.6-13] versus 7.5 [3.4-14] months). The gender ratio was similar in children with and without hyponatremia. Hyponatremia was associated with further metabolic abnormalities (hypokalemia, hyperkalemia, metabolic acidosis or metabolic alkalosis) in gastroenteritis (71%) and pyelonephritis (54%), and always isolated in bronchiolitis. In conclusion, hyponatremia is common at presentation among previously healthy infants with gastroenteritis, bronchiolitis or pyelonephritis. These data have relevant consequences for the nutrition and rehydration management in these conditions.

Original languageEnglish
Article numbere0219299
JournalPLoS One
Volume14
Issue number7
DOIs
Publication statusPublished - Jan 1 2019

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hyponatremia
Community-Acquired Infections
pyelonephritis
Hyponatremia
Bronchiolitis
Nutrition
Dehydration
Pyelonephritis
gastroenteritis
Gastroenteritis
Sodium
infection
Hypernatremia
infants
Potentiometry
hyperkalemia
hypokalemia
Alkalosis
Hyperkalemia
Hypokalemia

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

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Hyponatremia in infants with community-acquired infections on hospital admission. / Mazzoni, Marta B.; Milani, Gregorio P.; Bernardi, Silvia; Odone, Ludovica; Rocchi, Alessia; D'Angelo, Emanuela A.; Alberzoni, Marco; Agostoni, Carlo; Bianchetti, Mario G.; Fossali, Emilio F.

In: PLoS One, Vol. 14, No. 7, e0219299, 01.01.2019.

Research output: Contribution to journalArticle

Mazzoni, Marta B. ; Milani, Gregorio P. ; Bernardi, Silvia ; Odone, Ludovica ; Rocchi, Alessia ; D'Angelo, Emanuela A. ; Alberzoni, Marco ; Agostoni, Carlo ; Bianchetti, Mario G. ; Fossali, Emilio F. / Hyponatremia in infants with community-acquired infections on hospital admission. In: PLoS One. 2019 ; Vol. 14, No. 7.
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