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Breathing patterns in infants utilizing respiratory inductive plethysmography.

R H Warren, S H Alderson

    Chest
    |May 1, 1986
    PubMed
    Summary

    The single position graphic (SPG) technique offers accurate and efficient calibration for respiratory inductive plethysmography (RIP) in infants. This method maintains accuracy across position changes if the infant remains calm, providing reliable breathing pattern data.

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    Area of Science:

    • Neonatal physiology
    • Respiratory monitoring
    • Infant breathing patterns

    Background:

    • Respiratory inductive plethysmography (RIP) requires accurate gain factor calibration for assessing infant breathing patterns non-invasively.
    • Traditional calibration methods can be time-consuming and challenging in infants.

    Purpose of the Study:

    • To evaluate the efficacy and accuracy of the single position graphic (SPG) technique for respiratory inductive plethysmography (RIP) calibration in newborn infants.
    • To assess the impact of infant state and position changes on RIP calibration accuracy.

    Main Methods:

    • Employed the single position graphic (SPG) technique for gain factor calculation in RIP for 70 quietly awake infants.
    • Validated RIP gain factors by comparing simultaneous volume measurements with pneumotachography (PNT).

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  • Assessed calibration accuracy after infant repositioning and changes in behavioral state.

    • Main Results:

    • The SPG technique provided accurate RIP calibration in 70 infants.
    • Calibration accuracy was maintained following position reversal in 46 infants who remained in a quiet state.
    • No significant correlations were found between infant anthropometrics and breathing pattern data.
    • Repositioning did not introduce consistent changes in breathing patterns when calibration remained accurate.

    Conclusions:

    • The SPG technique is a time-efficient and accurate method for RIP calibration in newborn infants.
    • RIP calibration accuracy is maintained across position changes provided the infant's behavioral state remains consistent.
    • The study provides normative breathing pattern data for quietly awake infants using RIP.