Zhonghua yi xue za zhi · 2007
[Changes of sleep architecture in patients with narcolepsy].
Аннотация на английскомСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Li Jing, Xu Yan, Dong Xiao-Song, Han Xu, He Zhong-Ming, Lü Yun-Hui, Wang Li, He Quan-Ying, Han Fang
Аннотация
OBJECTIVE: To investigate the sleep architectures of patients with narcolepsy.
METHODS: 38 drug-naive narcoleptic patients, 25 males and 13 females, aged 21 +/- 6.5, and 44 age-, sex ratio-, and BMI-matched normal persons underwent polysomnography (PSG) and multiple sleep latency test (MSLT) during one night sleep. Conventional visual scoring of the polysomnograms was performed according to the international.
RESULTS: The sleep latency of the patients was 5.6 min, however, 30 patients (79%) complained of fragmented nocturnal sleep and difficulty to fall asleep again. The sleep efficiency of the narcoleptics was 81.7% +/- 12.5%, significantly lower than that of the normal persons (87.1% +/- 7.9%, P = 0.029). The non-rapid eye movement (NREM) I sleep accounted for (21.5 +/- 12.2)% in the patients, a proportion significantly higher than that of the normal persons [(10.3 +/- 6.3)%, P = 0.000]). The AHI of the patients was 0.6 +/- 1.3 times/h, not significantly different from that of the normal persons (0.5 +/- 1.1 times/h). Although the rapid eye movement (REM) period and eye movement density of the narcoleptics were significantly increased, their REM period duration was not significantly different from that of the normal subjects (17.7% +/- 6.9% vs 18.9% +/- 5.5%, P = 0.23), probably due to the interruption of REM sleep by more frequent arousals in narcoleptics. PSG did not show significant periodic leg movements in these 2 groups.
CONCLUSION: One of the important symptoms of narcolepsy, night sleep disturbance may contribute to the pathological sleepiness of narcolepsy during daytime.
METHODS: 38 drug-naive narcoleptic patients, 25 males and 13 females, aged 21 +/- 6.5, and 44 age-, sex ratio-, and BMI-matched normal persons underwent polysomnography (PSG) and multiple sleep latency test (MSLT) during one night sleep. Conventional visual scoring of the polysomnograms was performed according to the international.
RESULTS: The sleep latency of the patients was 5.6 min, however, 30 patients (79%) complained of fragmented nocturnal sleep and difficulty to fall asleep again. The sleep efficiency of the narcoleptics was 81.7% +/- 12.5%, significantly lower than that of the normal persons (87.1% +/- 7.9%, P = 0.029). The non-rapid eye movement (NREM) I sleep accounted for (21.5 +/- 12.2)% in the patients, a proportion significantly higher than that of the normal persons [(10.3 +/- 6.3)%, P = 0.000]). The AHI of the patients was 0.6 +/- 1.3 times/h, not significantly different from that of the normal persons (0.5 +/- 1.1 times/h). Although the rapid eye movement (REM) period and eye movement density of the narcoleptics were significantly increased, their REM period duration was not significantly different from that of the normal subjects (17.7% +/- 6.9% vs 18.9% +/- 5.5%, P = 0.23), probably due to the interruption of REM sleep by more frequent arousals in narcoleptics. PSG did not show significant periodic leg movements in these 2 groups.
CONCLUSION: One of the important symptoms of narcolepsy, night sleep disturbance may contribute to the pathological sleepiness of narcolepsy during daytime.