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Automated respiratory inductive plethysmography to evaluate breathing in infants at risk for postoperative apnea

Karen A Brown1, Ahmed A Aoude, Henrietta L Galiana

  • 1Division of Pediatric Anesthesia, McGill University Health Center/Montreal Children's Hospital, 2300 Tupper Street, Rm. C-1118, Montreal, Quebec H3H1P3, Canada. roula.cacolyris@muhc.mcgill.ca

Canadian Journal of Anaesthesia = Journal Canadien D'Anesthesie
|January 14, 2009
PubMed

Insights

Respiratory inductive plethysmography (RIP) shows promise for evaluating breathing in infants at risk for postoperative apnea (POA). High pause density values may predict apnea risk in these infants.

Area of Science:

  • Pediatric Pulmonology
  • Neonatal Sleep Studies
  • Respiratory Physiology

Background:

  • Respiratory inductive plethysmography (RIP) is standard for sleep disordered breathing assessment.
  • Its application in infants at risk for postoperative apnea (POA) remains unexplored.
  • Novel algorithms are needed to analyze respiratory events in this population.

Purpose of the Study:

  • To apply RIP for evaluating infant breathing in the context of POA risk.
  • To implement novel algorithms for detecting movement artifact, respiratory pauses, and thoracoabdominal asynchrony.
  • To classify respiratory pauses as obstructive or central in origin.

Main Methods:

  • Prospective study design utilizing RIP, saturation, and finger plethysmography.
  • Dual data analysis: automated detection of respiratory events and visual coding.
  • Calculation of a novel 'pause density' index.

Main Results:

  • Twenty infants (mean postconceptional age 44.47 weeks) were studied.
  • Ten infants experienced POA, including central and mixed obstructive apnea.
  • High pause density values correlated with apnea events in affected infants.

Conclusions:

  • RIP is a potentially valuable tool for assessing breathing in infants at risk for POA.
  • Analysis of short respiratory pauses may aid in predicting apnea risk.
  • Further research into RIP-based algorithms can enhance infant respiratory monitoring.
Abstract

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