目的评价脉搏传导时间（PTT）对睡眠呼吸暂停和微觉醒的诊断价值。
Objective To study the value of pulse transit time(PTT) on the diagnosis of sleep respiratory events and microarousals.
本文提出了一种新的适用于微动敏感床垫的检测与呼吸事件相关的微觉醒反应的识别算法。
A new algorithm for recognizing arousals related to breathing event that can be used on the micro-movement sensitive mattress monitoring system was presented.
确定在控制算法的外环中所使用的微觉醒指数，微觉醒指数是对睡眠微觉醒的频率的测定值。
An arousal index is determined for use in an outer loop of a control algorithm, the arousal index being a measure of the frequency of sleep arousals.
结论稳定牙合垫对夜磨牙患者的牙齿磨动有所改善，但对于睡眠结构和睡眠微觉醒的发生无影响。
Conclusion the stabilization splint is effective for treating sleep bruxism in short term, but can not affect the sleep structure and the incidence of micro-arousal.
结果使用稳定牙合垫2周后，每小时磨牙事件比治疗前有所减少，微觉醒指数、睡眠结构变化差异无统计学意义。
Results the bruxism episodes per hour decreased after wearing stabilization splint for 2 weeks, but the incidence of micro-arousal and the sleep stage did not change.
目的PTT是一项反映周围血管阻力和胸腔内压变化的无创指标，因此和微觉醒相关的血压改变可通过PTT检测。
Objective Pulse transit time (PTT) is a non-invasive index which reflects changes in peripheral vascular resistance and intra-thoracic pressure.
结果对24例完整的有效数据进行比较，PTT监测所得AH I、睡眠呼吸事件、微觉醒指数与PSG结果无显著差异（P>0.05）。
Results Among 24 cases with available data, no significant difference of AHI, sleep respiratory events and microarousal index, etc. was found between PTT and PSG(P>0.05).
结果对24例完整的有效数据进行比较，PTT监测所得AH I、睡眠呼吸事件、微觉醒指数与PSG结果无显著差异（P>0.05）。
Results Among 24 cases with available data, no significant difference of AHI, sleep respiratory events and microarousal index, etc. was found between PTT and PSG(P>0.05).
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