Stoohs R, Guilleminault C
Sleep Disorders Center, Stanford University, CA.
Eur Respir J. 1990 Jul;3(7):823-9.
A digital recording device developed to monitor heart rate (HR) and breathing sounds (snoring), and used to screen subjects for obstructive sleep apnoea syndrome (OSAS), was investigated. This device is called the MESAM and is currently commercially available in some western European countries. The computer-based automatic scoring systems provided with the equipment and a hand-scoring technique developed at Stanford and requiring 10-15 min to perform, were used. Polysomnography and MESAM recordings were performed simultaneously on two groups of 25 sleep disorder patients (each with respiratory disturbance index greater than or less than 10). Patients were randomly monitored and records were analysed by two teams blind to the initial clinical impression, to the events which occurred during the recordings, and to each other's findings. Specificity and sensitivity were calculated for each of the MESAM scoring techniques considered, with polysomnography being selected as the recording standard, With "automatic HR scoring" specificity was 12%, sensitivity 92%; with "automatic breathing sounds (snoring)" scoring, specificity was 8% and sensitivity 96%; with "hand-scoring" specificity was 72% and sensitivity 92%. If the three scoring techniques were combined, all patients with a respiratory disturbance index (RD) greater than 10 were recognized as having OSAS.
对一种用于监测心率（HR）和呼吸音（打鼾）并用于筛查阻塞性睡眠呼吸暂停综合征（OSAS）患者的数字记录设备进行了研究。该设备称为MESAM，目前在一些西欧国家有商业销售。使用了该设备配备的基于计算机的自动评分系统以及斯坦福大学开发的需要10 - 15分钟完成的手工评分技术。对两组各25名睡眠障碍患者（每组呼吸紊乱指数大于或小于10）同时进行多导睡眠图和MESAM记录。对患者进行随机监测，记录由两个对初始临床印象、记录期间发生的事件以及彼此的发现不知情的团队进行分析。以多导睡眠图作为记录标准，对所考虑的每种MESAM评分技术计算特异性和敏感性。“自动心率评分”的特异性为12%，敏感性为92%；“自动呼吸音（打鼾）评分”的特异性为8%，敏感性为96%；“手工评分”的特异性为72%，敏感性为92%。如果将这三种评分技术结合起来，所有呼吸紊乱指数（RD）大于10的患者都被识别为患有OSAS。
