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J Appl Physiol 66: 1158-1163, 1989;
8750-7587/89 $5.00
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Journal of Applied Physiology, Vol 66, Issue 3 1158-1163, Copyright © 1989 by American Physiological Society

ARTICLES

Effects of sleep deprivation on respiratory events during sleep in healthy infants

E. Canet, C. Gaultier, A. M. D'Allest and M. Dehan
Department of Physiology, Centre National de la Recherche Scientifique Unite Associee 1159, Clamart, France.

This study was designed to determine the effects of sleep deprivation on respiratory events during sleep in healthy infants. Ten unsedated full-term infants (1-6 mo) were monitored polygraphically during "afternoon naps" on a control day and on the day after sleep deprivation. Respiratory events, i.e., central apnea, obstructive apnea and hypopnea, and periodic breathing were tabulated. Results for respiratory events were expressed as 1) indexes of the total number of respiratory events and of specific respiratory events per hour of total sleep (TST), "quiet" sleep (QS) and "active" sleep (AS) times; 2) total duration of total and specific respiratory events, expressed as a percentage of TST, QS, and AS times. After sleep deprivation, significant increases were observed for 1) respiratory event (P less than 0.001), central apnea (P less than 0.05), and obstructive respiratory event (P less than 0.01) indexes; 2) respiratory event time as a percentage of TST (P less than 0.002) and as a percentage of AS time (P less than 0.001); 3) obstructive respiratory event time as a percentage of TST (P less than 0.01), QS (P less than 0.05), and AS times (P less than 0.002). The present study shows that short-term sleep deprivation in healthy infants increases the number and timing of respiratory events, especially obstructive events in AS.


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