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Updated: Aug 17, 2026
Preterm EEG: A Multimodal Neurophysiological Protocol
Published on: February 18, 2012
Sleep of preterm neonates under developmental care or regular environmental conditions
Valerie Bertelle1, Dominique Mabin, Joelle Adrien
1Neonatal Intensive Care Unit, Department of Pediatrics, University Hospital, 29609 Brest, France.
Insights
Developmental care (DC) significantly improved sleep in preterm infants, increasing total sleep time and active/quiet sleep durations. This intervention reduced the time it took for infants to fall asleep, promoting better rest.
Area of Science:
- Neonatal care
- Sleep medicine
- Developmental pediatrics
Background:
- Sleep is a critical behavioral state for premature infants.
- Sleep deprivation is a significant stressor in neonatal intensive care units (NICUs).
- Developmental care (DC) strategies aim to minimize stress and enhance well-being in neonates.
Purpose of the Study:
- To evaluate the impact of developmental care (DC) on sleep patterns in preterm neonates.
- To determine if DC influences total sleep time and sleep stage durations.
- To assess changes in sleep latency with the implementation of DC.
Main Methods:
- A prospective cross-over study involving 33 preterm neonates (gestational age 29.3 weeks).
- Polysomnography was conducted during 3-hour periods with and without DC.
- Sleep parameters including total sleep time (TST), active sleep (AS), quiet sleep (QS), and sleep latency were analyzed.
Main Results:
- Developmental care (DC) significantly increased total sleep time (TST) in preterm infants (156.2 min vs. 139.2 min, p=0.002).
- DC also led to significant increases in active sleep (AS) and quiet sleep (QS) durations.
- Sleep latency was markedly reduced in the presence of DC (2.1 min vs. 10.5 min, p=0.0005).
Conclusions:
- Developmental care (DC) effectively promotes and improves sleep in preterm neonates.
- Further research is needed to explore the long-term neuro-behavioral outcomes associated with DC-induced sleep improvements.
Unlabelled:
Sleep is the main behavioral state of the premature infant. In adult intensive care units, sleep deprivation has been reported as one of the major stressors. Developmental care (DC) aims to decrease stressful events in neonatal intensive care unit and support well-being.
Aim:
To assess whether DC is accompanied by changes in sleep in preterm neonates.
Methods:
A prospective cross-over study included 33 preterm neonates [mean (S.D.): gestational age: 29.3 (1.8) weeks; birth weight: 1245 (336) g]. Polysomnography was performed in two randomly ordered 3-h periods with and without DC. A blinded electrophysiologist analyzed sleep. The total sleep time (TST) was the primary outcome, duration of active (AS), quiet (QS) and indeterminate sleep, and latency before sleep were the secondary outcomes. Non-parametric Wilcoxon tests and ANOVA were used.
Results:
In DC condition vs. control: TST increased [in minutes, mean (S.E.M.): 156.2 (2.9) vs. 139.2 (4.6), p=0.002], with increase in AS [86.6 (3.7) vs. 77.0 (4.2), p=0.024] and in QS [47.1 (4.1) vs. 36.9 (4.2), p=0.015], and sleeping latency decreased (2.1 (0.7) vs. 10.5 (2.0), p=0.0005].
Conclusion:
DC promoted sleep in our study. The impact of DC on the neuro-behavioral outcome needs futures studies.
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