Body position and obstructive sleep apnea in 8-12-month-old infants

作者：Pereira Kevin D^*; Rathi Nisha K; Fatakia Adil; Haque Sajid A; Castriotta Richard J

来源：International Journal of Pediatric Otorhinolaryngology, 2008, 72(6): 897-900.

DOI：10.1016/j.ijporl.2008.03.002

• infant
• obstructive sleep apnea
• body position
• sudden infant death syndrome

Aim: To determine the association between body position and obstructive events during sleep as determined by polysomnography (PSG) in infants of ages 8-12 months with obstructive sleep apnea (OSA).
Methods: Consecutive nocturnal, polysomnograms (NPSGs) of 50 children ages 8-12 months old referred to the sleep disorders center between 1 January 2003 and 1 June 2006 for possible sleep- disordered breathing were retrospectively reviewed. Data on total obstructive apnea index (All), total obstructive apnea-hypopnea index (AHI), At by body position, AHI by body position, rapid eye movement (REM) and non-REM sleep AHI and REM and non-REM Al were recorded.
Results: The mean age was 9.5 +/- 1.9 S.D. months and 46% of the patients were females. There were no significant differences between the mean non-supine AHI (2.0 +/- 5.1) and supine AHI (2.5 +/- 5.4), p = 0.63. When comparing specific body positions, there were also no significant differences between the mean supine AHI (2.5 5.4), prone AHI (2.9 +/- 7.3), left-tateral decubitus AHI (1.1 +/- 6.1), or the right-lateral decubitus AHI (2.5 +/- 7.6), p = 0.71. Additionally, there were also no significant differences between the mean non-supine Al (0.7 +/- 2.9) and supine Al (1.4 +/- 3.0), p = 0.23, and no differences between the supine At (0.7 2.9), prone At (1.0 +/- 2.9), left-lateral decubitus Al (0.3 +/- 2.9) or the right-lateral decubitus Al (1.1 +/- 3.0), p = 0.44. Children spent an average of 50% of their total sleep time supine. OSA was significantly worse in REM sleep as compared to non-REM sleep (REM AHI 4.3 +/- 7.3 versus non-REM AHI 1.4 3.9, p = 0.015; REM Al 5.1 +/- 4.9 versus non-REM At 1.5 4.9, p < 0.001). Mean time in REM sleep was 26% (range 5-42%).
Conclusions: There was no significant effect of body position on steep-disordered breathing in 8-12 months old infants, although REM steep represented a significant risk factor for OSA.

• 出版日期2008-6