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Preterm infant temperature circadian rhythm: possible effect of parental cosleeping

Karen A Thomas1, Robert Burr

  • 1Department of Family and Child Nursing, University of Washington School of Nursing, Seattle 98195-7262, USA. kthomas@u.washington.edu

Biological Research for Nursing
|May 11, 2002
PubMed

Insights

Preterm infants show developing circadian rhythms in abdominal skin temperature. Cosleeping and longer hospital stays significantly impact the timing of this rhythm, suggesting parental proximity aids entrainment.

Area of Science:

  • Neonatal physiology
  • Chronobiology
  • Developmental pediatrics

Background:

  • Preterm infants often exhibit disrupted circadian rhythms.
  • Establishing circadian rhythms is crucial for infant development and health.
  • Abdominal skin temperature is a potential indicator of circadian regulation.

Purpose of the Study:

  • To characterize the circadian rhythm of abdominal skin temperature in preterm infants.
  • To investigate factors influencing the timing (acrophase) of this circadian rhythm.
  • To explore the role of environmental factors in entraining infant circadian rhythms.

Main Methods:

  • Continuous monitoring of abdominal skin temperature in 34 preterm infants at home.
  • Parental recording of sleep/wake activity over 24 hours.
  • Cosinor analysis for circadian rhythm assessment and MANCOVA for factor analysis.

Main Results:

  • Infants demonstrated a developing circadian rhythm in abdominal skin temperature.
  • Cosleeping and length of hospital stay were significantly associated with acrophase timing.
  • Cosleeping infants had a mean acrophase around 07:44, while non-cosleeping infants' was around 22:05.

Conclusions:

  • Preterm infants develop circadian rhythms in abdominal skin temperature.
  • Parental proximity during sleep (cosleeping) and hospital stay duration influence circadian rhythm timing.
  • Nighttime proximity to parents may help entrain preterm infants' circadian rhythms.

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