Effects of sleep-disordered breathing and hypertension on cognitive function in elderly adults
Effects of sleep-disordered breathing and hypertension on cognitive function in elderly adults
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DOI:
10.1080/10641963.2019.1632338
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发表时间:
2019-07-05
影响因子:
12.3
通讯作者:
Ozaki,Norio
中科院分区:
文献类型:
--
作者:
Kato,Kazuko;Noda,Akiko;Ozaki,Norio
Sleep complaints are common in elderly subjects [1]. Ageing is associated with physiological changes in the amount and composition of sleep, but sleep in old age is also affected by comorbidities and alterations in circadian rhythms. Comorbidities play a major role in determining unsatisfactory sleep, since chronic diseases typical of advanced age may affect sleep either directly (ie symptoms can interfere with sleep initiation or cause nocturnal awakenings) or indirectly, through collateral effects of drugs. The effects of sleep disturbances in elderly subjects are qualitatively similar to those occurring at other ages, but can be hard to recognise and interpret in the clinical context [2]. Insufficient or qualitatively poor sleep can cause daytime sleepiness, decreased attention or memory problems; in old subjects, these symptoms or signs can be interpreted as indicating dementia and/or cognitive alterations. A sleepiness-related delay in reaction time can increase the risk of driving accidents or fall-associated fractures. Finally, reduced participation in family or social life can cause feelings of inadequacy and the perception of a poor health status, with the subsequent trend to high resource utilisation and increased health costs [1, 2]. Elderly people often exhibit sleep-disordered breathing (SDB), ie snoring and obstructive and central sleep apnoea, but their symptoms and the consequences are somewhat different compared with those observed in younger adults, leading to the hypothesis that despite obvious similarities, SDB may represent different diseases in non-elderly and elderly adult subjects [3]. This chapter will briefly describe in the elderly population: a) the characteristics of obstructive sleep apnoea (OSA); b) the prevalence and possible role of SDB in chronic heart failure; and c) the alterations in sleep in chronic obstructive pulmonary disease (COPD). Finally, the features of SDB in diabetes, and stroke will be summarised briefly.