Su Stephanie, Baroody Fuad M, Kohrman Michael, Suskind Dana
Department Surgery, Section of Otolaryngology--Head and Neck Surgery, The University of Chicago, Illinois 60637, USA.
Otolaryngol Head Neck Surg. 2004 Dec;131(6):844-50. doi: 10.1016/j.otohns.2004.07.014.
To validate the role of a portable sleep monitor device (SNAP) in the diagnosis of obstructive sleep apnea syndrome (OSAS). Inter-reader variability was also assessed for both PSG and SNAP.
Sixty consecutive adults referred for PSG at The University of Chicago Sleep Disorder Clinic were prospectively enrolled.
There was no significant difference between total number of apnea and hypopnea, respiratory disturbance index (RDI), and minimum oxygen obtained by PSG and SNAP, but there was a significant difference between sleep time and mean oxygen. Pearson's correlation coefficient for RDI > or = 15 was 0.92.
There was a significant correlation of RDIs between SNAP and PSG. SNAP has good sensitivity, specificity, positive and negative predictive values. Differences between SNAP and PSG could be attributed to inter-reader variability and not necessarily due to technical limitations of SNAP. SNAP is an excellent tool for the diagnosis of OSAS in the laboratory setting. Future studies should be performed to evaluate SNAP's accuracy in the home setting in the diagnosis of OSAS.
B-2.
验证便携式睡眠监测设备（SNAP）在阻塞性睡眠呼吸暂停综合征（OSAS）诊断中的作用。同时评估多导睡眠图（PSG）和SNAP的阅片者间变异性。
前瞻性纳入了60名连续转诊至芝加哥大学睡眠障碍诊所进行PSG检查的成年人。
PSG和SNAP测得的呼吸暂停和低通气总数、呼吸紊乱指数（RDI）以及最低血氧饱和度之间无显著差异，但睡眠时间和平均血氧饱和度之间存在显著差异。RDI≥15时的Pearson相关系数为0.92。
SNAP和PSG的RDI之间存在显著相关性。SNAP具有良好的敏感性、特异性、阳性预测值和阴性预测值。SNAP与PSG之间的差异可能归因于阅片者间变异性，而不一定是由于SNAP的技术限制。SNAP是实验室环境中诊断OSAS的优秀工具。未来应开展研究以评估SNAP在家庭环境中诊断OSAS的准确性。
B-2。
