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Related Experiment Videos

Water electrolyte homeostasis in acute bronchiolitis

U Poddar1, S Singhi, N K Ganguli

  • 1Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandgiarh.

Indian Pediatrics
|January 1, 1995
PubMed
Summary

Infants with acute bronchiolitis experience water retention due to impaired kidney function. Careful fluid management is crucial to prevent water intoxication in these young patients.

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Area of Science:

  • Pediatrics
  • Nephrology
  • Critical Care Medicine

Background:

  • Acute bronchiolitis is a common respiratory illness in infants, often necessitating hospitalization and intravenous fluid therapy.
  • Water retention and electrolyte imbalances have been observed in pediatric pulmonary conditions, linked to impaired renal water excretion.

Purpose of the Study:

  • To investigate water and electrolyte changes in infants hospitalized with acute bronchiolitis.
  • To compare these changes during the acute phase versus recovery.
  • To assess renal water handling capacity in affected infants.

Main Methods:

  • Studied 20 infants hospitalized for acute bronchiolitis, measuring serum sodium, plasma osmolality, and urinary parameters.
  • Assessed body water compartments and renal water handling (water load excretion, free water excretion capacity) on admission and during recovery.

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  • Compared acute stage measurements with those obtained after recovery.

    • Main Results:

    • Infants showed decreased serum sodium and plasma osmolality during acute illness compared to recovery.
    • Urinary sodium and osmolality were significantly lower on admission.
    • Total body water excess, primarily in extracellular compartments, was observed.
    • Seven out of ten infants exhibited impaired renal water excretion, with significantly improved free water clearance upon recovery.

    Conclusions:

    • Acute bronchiolitis in infancy is characterized by significant water retention.
    • Impaired renal water excretion is the primary cause of this water retention.
    • Judicious fluid therapy is essential in managing severe bronchiolitis to avoid potential water intoxication.