目的探讨重度睡眠呼吸暂停低通气综合征（OSAHS）的睡眠结构和睡眠觉醒的临床意义。

Objective To explore the clinical significance of sleeping structure and sleeping awakening of severe obstructive sleep apnea-hypopnea syndrome (OSAHS).

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结果重叠综合征患者觉醒次数增加，入睡潜伏期缩短，睡眠呼吸暂停时间长，夜间低氧血症明显。

Results Overlap syndrome had increased number of WASO (wake after sleep onset), fallen asleep the incubation period shorten, sleep apnea time was long, and the nocturnal hypoxemia was obvious.

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