Royal National Throat Nose and Ear Hospital, 330 Grays Inn Road, London, WC1X 8DA, UK.
Eur Arch Otorhinolaryngol. 2012 Apr;269(4):1277-9. doi: 10.1007/s00405-011-1798-1. Epub 2011 Oct 13.
Bispectral index (BIS) monitor is a neurophysiological monitoring device which continually analyses a patient's electroencephalogram during sedation and general anaesthesia to assess the level of consciousness and depth of anaesthesia. BIS monitoring, whilst performing sleep nasendoscopy (using midazolam and propofol), has helped validate depth of sedation and allowed comparison with levels of sedation of control patients during natural sleep. A prospective study of 30 patients with snoring undergoing sleep nasendoscopy with BIS monitoring was conducted. BIS monitoring was recorded throughout the procedure and assessment of snoring was made at the appropriate level of sedation and snoring. BIS values were compared with control patients. The 30 patients undergoing sleep nasendoscopy had average BIS values ranging from 50.72 to 61.2. Similar results were seen with BIS and oxygen saturation in the control group. BIS monitoring provides an adjunct to the assessment of sleep nasendoscopy in determining the level of sedation required for snoring assessment. Comparable BIS values and oxygen saturation levels were obtained between controls and patients during sedation-induced sleep, thus validating the role of sleep nasendoscopy.
脑电双频指数（BIS）监测仪是一种神经生理监测设备，它在镇静和全身麻醉期间持续分析患者的脑电图，以评估意识水平和麻醉深度。BIS 监测在进行睡眠鼻内镜检查（使用咪达唑仑和丙泊酚）时，有助于验证镇静深度，并允许与自然睡眠中对照患者的镇静水平进行比较。对 30 例打鼾患者进行了睡眠鼻内镜检查和 BIS 监测的前瞻性研究。在整个过程中记录 BIS 监测，并在适当的镇静水平和打鼾时评估打鼾。将 BIS 值与对照患者进行比较。30 例行睡眠鼻内镜检查的患者平均 BIS 值为 50.72 至 61.2。对照组的 BIS 和氧饱和度也出现了类似的结果。BIS 监测为睡眠鼻内镜检查评估提供了辅助手段，以确定评估打鼾所需的镇静水平。在镇静诱导的睡眠期间，对照患者和患者之间获得了可比的 BIS 值和氧饱和度水平，从而验证了睡眠鼻内镜检查的作用。
