自动持续气道正压系统诊断睡眠呼吸暂停综合征的临床评价

目的评价简易的自动持续气道正压系统（AutoSet）在临床上诊断睡眠呼吸暂停综合征（SAS）的应用价值。方法120例患者同时进行AutoSet和多导睡眠图（PSG）的监测研究，比较两种方法的呼吸暂停指数（AI）及呼吸暂停＋低通气指数（AHI）。结果两种方法的AI及AHI呈显著相关（r＝0．88，P＜0．001；r＝0．93，P＜0．001）。AutoSet上显示的呼吸紊乱指数（RII）与PSG的觉醒指数（Ai）呈显著相关（r＝0．72，P＜0．001）。如以AHI≥5、10、15、20次／小时为诊断标准，AntoSet诊断SAS的敏感性分别为94％、92％、91％、91％，特异性分别为80％、85％、92％、91％。结论AutoSet系统是一个诊断SAS敏感和有价值的工具，尤其对AHI≥30次／小时的SAS患者，其诊断价值更大，但对于轻、中度患者有一定的误差。

Comparison of AutoSet with polysomnography in the diagnosis of sleep apnea syndrome

OBJECTIVE: To evaluate the validation of the AutoSet system in the diagnosis of sleep apnea syndrome(SAS). METHODS: One hundred and twenty patients were studied simultaneously performed both with the AutoSet and the polysomnography(PSG). The apnea index(AI) and apneas + hypopneas index (AHI) were compared between the two methods by Bland and Altmen method. RESULTS: A significant correlation was found between the AHI assessed by the AutoSet and by the PSG (r = 0.92, P < 0.001). The respiratory irregularity index (RII) of the AutoSet was well correlated with the arousal index (Ai) from the PSG (r = 0.72, P < 0.001). The sensitivity and specificity of the AutoSet in diagnosing sleep apnea were 94% and 80% for AHI > or = 5/hour, 92% and 85% for AHI > or = 10/hour, 91% and 92% for AHI > or = 15/hour, 91% and 91% for AHI > or = 20/hour. CONCLUSIONS: The AutoSet system is a sensitive and valuable tool for identifying patients with sleep apnea and can make a diagnosis of sleep apnea for these patients with AHI > or = 30/hour, but has some limits especially for mild to moderate sleep apnea.