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J Perinatol. 2006 May;26(5):306-12.

Fewer spontaneous arousals during prone sleep in preterm infants at 1 and 3 months corrected age.

Author information

1
Department of Pediatrics, Division of Neonatology, Stanford University School of Medicine, USA. rla@stanford.edu

Abstract

OBJECTIVE:

This study was performed to determine if there were fewer spontaneous arousals in prone sleep than in supine sleep.

STUDY DESIGN:

Home polysomnography/video recordings were done during daytime naps in 14 preterm infants: four at corrected age of 1 month, nine at both 1 and 3 months, and one only at 3 month. A body movement lasting 3 to 60 s during sleep was used as an indicator of spontaneous arousals.

RESULTS:

Most arousals had a heart rate increase and change in respiration pattern. The mean duration of the intervals between successive arousals in active and quiet sleep was significantly longer in prone at 1 and 3 months of age. The duration of arousals was significantly shorter at 3 months corrected age compared with one month corrected age during active sleep. The duration of arousals was shorter during quiet sleep at one month compared with active sleep.

CONCLUSION:

There were fewer spontaneous arousals that is, longer interval between successive arousals in prone, which may, in part, explain the increase in risk of Sudden Infant Death Syndrome.

PMID:
16572196
DOI:
10.1038/sj.jp.7211490
[Indexed for MEDLINE]
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