Sleep apnoea and daytime function in the elderly - what is the impact of arousal frequency?

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Title Sleep apnoea and daytime function in the elderly - what is the impact of arousal frequency?
Author Browne, H.A.K.; Adams, Lewis; Simonds, A.K.; Morrell, M.J.
Journal Name Respiratory Medicine
Year Published 2003
Place of publication United Kingdom
Publisher Elsevier Ltd
Abstract Arousals from sleep result in hyperventilation and hypocapnia that can lead to sleep apnoea. We have investigated whether sleep apnoea in the elderly is associated with more arousals compared with younger people. Additionally, the impact of arousals on daytime symptoms was noted. Four groups (n=11) of elderly (>65 years) and young (o39 years) apnoeic (EA and YA), and age-matched nonapnoeics (EN and YN) were studied. The arousal index (AI) and apnoea/hypopnoea index were determined from polysomnography. Sleepiness (Epworth Sleepiness Scale) and Quality of life (QoL, SF-36) were assessed. The mean (SD) AI was: EN 23.1 (7.6), EA 46.5 (8.8), YN 13.2 (6.6), YA 38.5 (12.1) events/h. AI was higher in the elderly (P=0.002) and in apnoeics (P=0.001); however, the increase in AI associated with sleep apnoea was not age dependent (P=0.73). The influence of sleep apnoea on sleepiness was similar in both age groups. YA but not EA reported reduced physical functioning (P=0.04), vitality (P=0.007) and general health (P=0.04) compared to non-apnoeics. We conclude that (1) the effect of sleep apnoea on arousal is no greater in the elderly compared to the young (2) despite similar levels of sleepiness, elderly apneoics perceive a reduced loss of QoL compared to younger patients.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.elsevier.com/locate/rmed
Alternative URI http://dx.doi.org/10.1016/S0954-6111(03)00142-2
Volume 97
Page from 1102
Page to 1108
ISSN 0954-6111
Date Accessioned 2006-08-04
Language en_AU
Research Centre Griffith Health Institute
Faculty Griffith Health Faculty
Subject PRE2009-Geriatrics and Gerontology; PRE2009-Systems Physiology
URI http://hdl.handle.net/10072/27665
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1a

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