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.

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斯托克斯·亚当斯病：因心脏传导阻滞而致的脉搏的暂停或极缓慢跳动，能引起头晕、昏厥，有时引起痉挛。

An occasional temporary stoppage or extreme slowing of the pulse as a result of heart block, causing dizziness, fainting, and sometimes convulsions.

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脉搏-氧饱和度仪； 睡眠呼吸暂停低通气综合征； 持续气道正压； 呼吸紊乱指数；

Pulse oximetry; Sleep apnea-hypopnea syndrome; Continuous positive airway pressure; Respiratory disturbance index;

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