Hammerschlag P E, Berg H M, Prichep L S, John E R, Cohen N L, Ransohoff J
Otolaryngol Head Neck Surg. 1986 Dec;95(5):538-42. doi: 10.1177/019459988609500503.
The signal-to-noise ratio of brainstem auditory evoked responses (BAER) can be greatly enhanced by use of optimal digital filtering before averaging. This permits accurate assessment of auditory nerve status every 5 to 10 seconds, making real-time intraoperative monitoring possible. The major advantages yielded by real-time monitoring--in our experience thus far--have been identification of potentially adverse functional consequences of apparently uneventful surgical maneuvers, reducing postoperative dysfunction, early indication of potential for improved clinical function, and potential identification and localization of neural tissue in the face of absent surgical landmarks. Examples of these advantages will be provided from case studies, and the possibility that real-time monitoring may improve ability to preserve hearing will be discussed.
通过在平均处理前使用最佳数字滤波，可显著提高脑干听觉诱发电位（BAER）的信噪比。这使得每5到10秒就能准确评估听神经状态，从而实现术中实时监测。就我们目前的经验而言，实时监测带来的主要优势包括：识别看似顺利的手术操作可能产生的潜在不良功能后果、减少术后功能障碍、早期提示临床功能改善的可能性，以及在手术标志缺失的情况下潜在地识别和定位神经组织。将通过案例研究提供这些优势的示例，并讨论实时监测可能提高听力保留能力的可能性。
