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Effect of chloral hydrate on arterial oxygen saturation in wheezy infants

J Mallol1, P D Sly

  • 1Professiorial Department of Thoracic Medicine, Royal Children's Hospital, Melbourne, Australia.

Pediatric Pulmonology
|January 1, 1988
PubMed

Insights

Sedating infants with chloral hydrate for pulmonary function tests may lower oxygen levels, especially in those with wheezing illnesses. This common practice raises safety concerns for vulnerable infants.

Area of Science:

  • Pediatric Pulmonology
  • Clinical Pharmacology

Background:

  • Chloral hydrate is frequently used for infant sedation during pulmonary function tests.
  • Current sedation practices may exceed recommended dosages.
  • The impact of these doses on infants with acute wheezing is not well-understood.

Purpose of the Study:

  • To evaluate the effects of commonly used chloral hydrate doses on sedated infants undergoing pulmonary function testing.
  • To assess the safety and efficacy of chloral hydrate in infants with acute viral bronchiolitis versus cystic fibrosis.

Main Methods:

  • Infants received 70-100 mg/kg of chloral hydrate for sedation.
  • Arterial oxygen saturation (SaO2) and clinical scores were monitored.
  • Infants were categorized into groups with acute viral bronchiolitis and stable cystic fibrosis.

Main Results:

  • Chloral hydrate sedation led to decreased SaO2 and clinical scores in infants recovering from bronchiolitis.
  • No significant adverse effects were observed in infants with stable cystic fibrosis.
  • Wheezy infants with baseline SaO2 ≤ 94% showed increased susceptibility to respiratory depression.

Conclusions:

  • The standard dose of chloral hydrate may cause respiratory depression in wheezy infants.
  • Sedation with chloral hydrate in the studied doses is questionable for infants with acute wheezing illnesses.
  • Further research is needed to determine safe sedation protocols for pediatric pulmonary function testing.

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