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[Respiratory function tests in the newborn and the infant]

M Calbi1, L Giacchetti

  • 1Sezione di Pediatria e Neonatologia, Clinica Villa Bianca di Napoli, Italia.

La Pediatria Medica E Chirurgica : Medical and Surgical Pediatrics
|September 1, 1996
PubMed
Summary

Evaluating infant respiratory mechanics using a facial mask and pneumotachograph revealed that the Tptef/Texp ratio in healthy newborns can predict future respiratory issues.

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Area of Science:

  • Pediatric Pulmonology
  • Respiratory Physiology

Context:

  • Assessing lung function in infants is challenging due to their inability to cooperate with standard pulmonary function tests.
  • Non-invasive methods are crucial for evaluating respiratory mechanics in neonates and infants.

Purpose:

  • To evaluate respiratory mechanics in healthy and diseased newborns and infants using a non-invasive technique.
  • To determine the utility of flow-volume and flow-time loops for assessing lung function in non-collaborative infants.

Summary:

  • Respiratory mechanics were assessed in infants using a facial mask and pneumotachograph, generating flow-volume and flow-time loops.
  • Infants with conditions like pulmonary bronch-dysplasia, vascular ring, and bronchial asthma were studied.
  • The ratio of time to peak expiratory flow to total expiratory time (Tptef/Texp) in healthy newborns during flow-time analysis showed potential as a predictor of respiratory problems.

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Impact:

  • This non-invasive method provides valuable insights into infant lung function.
  • The Tptef/Texp ratio may serve as an early indicator for identifying infants at risk of respiratory diseases.
  • Facilitates earlier diagnosis and intervention for neonatal respiratory conditions.