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Nocturnal oxygen saturation profiles of healthy term infants.


ABSTRACT:

Objective

Pulse oximetry is used extensively in hospital and home settings to measure arterial oxygen saturation (SpO2). Interpretation of the trend and range of SpO2 values observed in infants is currently limited by a lack of reference ranges using current devices, and may be augmented by development of cumulative frequency (CF) reference-curves. This study aims to provide reference oxygen saturation values from a prospective longitudinal cohort of healthy infants.

Design

Prospective longitudinal cohort study.

Setting

Sleep-laboratory.

Patients

34 healthy term infants were enrolled, and studied at 2?weeks, 3, 6, 12 and 24?months of age (N=30, 25, 27, 26, 20, respectively).

Interventions

Full overnight polysomnography, including 2?s averaging pulse oximetry (Masimo Radical).

Main outcome measurements

Summary SpO2 statistics (mean, median, 5th and 10th percentiles) and SpO2 CF plots were calculated for each recording. CF reference-curves were then generated for each study age. Analyses were repeated with sleep-state stratifications and inclusion of manual artefact removal.

Results

Median nocturnal SpO2 values ranged between 98% and 99% over the first 2?years of life and the CF reference-curves shift right by 1% between 2?weeks and 3?months. CF reference-curves did not change with manual artefact removal during sleep and did not vary between rapid eye movement (REM) and non-REM sleep. Manual artefact removal did significantly change summary statistics and CF reference-curves during wake.

Conclusions

SpO2 CF curves provide an intuitive visual tool for evaluating whether an individual's nocturnal SpO2 distribution falls within the range of healthy age-matched infants, thereby complementing summary statistics in the interpretation of extended oximetry recordings in infants.

SUBMITTER: Terrill PI 

PROVIDER: S-EPMC4283696 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Publications

Nocturnal oxygen saturation profiles of healthy term infants.

Terrill Philip Ian PI   Dakin Carolyn C   Hughes Ian I   Yuill Maggie M   Parsley Chloe C  

Archives of disease in childhood 20140725 1


<h4>Objective</h4>Pulse oximetry is used extensively in hospital and home settings to measure arterial oxygen saturation (SpO2). Interpretation of the trend and range of SpO2 values observed in infants is currently limited by a lack of reference ranges using current devices, and may be augmented by development of cumulative frequency (CF) reference-curves. This study aims to provide reference oxygen saturation values from a prospective longitudinal cohort of healthy infants.<h4>Design</h4>Prospe  ...[more]

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