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Developmental consequences of short apneas and periodic breathing in preterm infants
Alicia K Yee1, Leon S Siriwardhana1, Gillian M Nixson1,2
1Department of Paediatrics, Monash University, Melbourne, VIC, Australia.
Insights
Respiratory events in preterm infants before hospital discharge impact later development. Increased time with respiratory events at term predicted lower language and motor scores at 6 months corrected age.
Area of Science:
- Neonatal development
- Respiratory physiology in infants
Background:
- Preterm infants often experience respiratory events.
- Understanding the long-term impact of these events is crucial for developmental outcomes.
Purpose of the Study:
- To investigate the association between respiratory events and developmental outcomes in preterm infants.
- To identify predictors of developmental outcomes at 6 months corrected age.
Main Methods:
- Studied preterm infants (28-32 weeks gestational age) at multiple time points.
- Calculated percentage total sleep time (%TST) with respiratory events (apneas, periodic breathing).
- Used stepwise multiple linear regression to identify significant predictors.
Main Results:
- %TST with respiratory events at term was a significant predictor of language and motor scores.
- A higher %TST with respiratory events correlated with lower composite scores on the Bayley Scales of Infant Development.
- These findings were independent of gestational age, birth weight, and sex.
Conclusions:
- In stable very preterm infants, time spent with respiratory events at term equivalent age is linked to reduced language and motor outcomes at 6 months corrected age.
- Early respiratory event management may be important for optimizing neurodevelopmental trajectories.
Objective:
We investigated the relationship between respiratory events experienced before and after hospital discharge and developmental outcomes at 6 months corrected age (CA).
Study Design:
Preterm infants born between 28-32 weeks gestational age (GA) were studied at 32-36 weeks postmenstrual age (PMA), 36-40 weeks PMA, 3- and 6-months CA. Percentage total sleep time (%TST) with respiratory events (isolated apneas, sequential apneas and periodic breathing (PB)) at each study was calculated. Stepwise multiple linear regressions determined significant predictors of developmental outcomes at 6 months.
Result:
%TST with respiratory events at term were significant predictors of language (R2 = 0.165, β = -0.416) and motor (R2 = 0.180, β = -0.485) composite scores of the Bayley Scales of Infant Development at 6 months, independent of GA, birth weight and sex.
Conclusions:
In clinically stable very preterm infants at term equivalent age, time spent having respiratory events, was related to a reduction in language and motor outcomes at 6 months.
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