Topic
Sleep disorder
About: Sleep disorder is a research topic. Over the lifetime, 19380 publications have been published within this topic receiving 884281 citations. The topic is also known as: somnipathy & non-organic sleep disorder.
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TL;DR: In the wake of traumatic events, subjective reports of sleep disturbance are common and objectively confirmed sleep disorders after traumatic events are examined.
Abstract: In the wake of traumatic events, subjective reports of sleep disturbance are common. This review article examines both subjectively identified and objectively confirmed sleep disorders after traumatic events. Recommendations with respect to diagnostic procedures and therapeutic options are also reviewed.
332 citations
TL;DR: It is suggested that fragmented nocturnal sleep is a significant cause of reduced daytime well-being in elderly individuals and the continuity of both sleep and wakefulness appears to be disrupted with age.
332 citations
TL;DR: It is concluded that children with OSAS have normal sleep stage distribution, and that apnea worsens over the course of the night, independent of the changing amounts of REM sleep.
Abstract: Little is known regarding sleep architecture in children with the obstructive sleep apnea syndrome (OSAS). We hypothesized that sleep architecture was normal, and that apnea increased over the course of the night, in children with OSAS. We analyzed polysomnographic studies from 20 children with OSAS and 10 control subjects. Sleep architecture was similar between the groups. Of obstructive apneas 55% occurred during rapid eye movement (REM) sleep. The apnea index, apnea duration, and degree of desaturation were greater during REM than non-REM sleep. OSAS data from the first and third periods of the night (periods A and C) were compared. Both the overall and the REM apnea index increased between periods A and C (11 to 25/h, p < 0.02; and 24 to 51/h, p < 0.01, respectively). There was no difference in SaO2 over time. Spontaneous arousals, but not respiratory-related arousals, were more frequent during non-REM than REM sleep; these did not change from periods A to C. We conclude that children with OSAS have n...
332 citations
TL;DR: Patterns of socio-demographic differences were studied for each of six questionnaire items relating to sleep, finding that life-style implications were reflected in types of sleeping difficulty.
331 citations
TL;DR: It is concluded that snorers with and without sleep apnea have smaller pharyngeal cross-sectional areas than nonsnorers and thatsnorers with sleep apna have a further decrease as lung volume falls.
Abstract: We measured pharyngeal cross-sectional area and its change with alterations in lung volume in 10 subjects who snored and had obstructive sleep apnea, 6 subjects who snored and did not have obstructive sleep apnea, and 9 subjects who did not snore. Pharyngeal area was measured with use of an acoustic-reflection technique. We found that snorers with and without sleep apnea had a significantly smaller mean (+/- SE) pharyngeal cross-sectional area (4.1 +/- 0.2 and 3.7 +/- 0.9 cm2, respectively) at functional residual capacity than nonsnorers (5.4 +/- 0.5 cm2, P less than 0.025). When lung volume decreased from functional residual capacity to residual volume, both nonsnorers and snorers with sleep apnea had a decrease in pharyngeal area (from 5.4 +/- 0.5 to 4.5 +/- 0.4 cm2 and 4.1 +/- 0.2 to 3.4 +/- 0.2 cm2, respectively), whereas snorers without sleep apnea had no such decrease, suggesting that their pharynxes were less collapsible at low lung volumes. We conclude that snorers with and without sleep apnea have smaller pharyngeal cross-sectional areas than nonsnorers and that snorers with sleep apnea have a further decrease as lung volume falls.
331 citations