O'Leary D P, Davis L L
Department of Otolaryngology, Head and Neck Surgery, University of Southern California, Los Angeles.
Otolaryngol Head Neck Surg. 1990 Jul;103(1):66-71. doi: 10.1177/019459989010300110.
Ten patients with previously confirmed diagnosis of acute-stage Meniere's disease were tested with the Vestibular Autorotation Test (VAT), a portable computerized test that measures the higher-frequency vestibulo-ocular reflex (VOR) to compute gain and phase. Patients were asked to fixate on a target and move their heads in synchrony with a computer-generated, sweep-frequency audible cue (0.5 to 6.0 Hz) through an 18-second test epoch. Head movements in both horizontal (yaw) and vertical (pitch) planes were used separately to test horizontal and vertical VORs, respectively. All subjects easily performed the VAT. Results of the horizontal tests were within normal limits for both gain and phase. The vertical gain was markedly high throughout the 2 to 6 Hz range. Mean vertical phase lags were reduced at higher frequencies. These results imply that the vertical VORs of acute-stage Meniere's patients are hypersensitive to the faster vertical head movements that occur commonly in daily activities.
对10名先前已确诊为急性期梅尼埃病的患者进行了前庭自动旋转试验（VAT），这是一种便携式计算机化测试，可测量高频前庭眼反射（VOR）以计算增益和相位。要求患者注视一个目标，并在一个18秒的测试时段内，与计算机生成的扫频听觉提示（0.5至6.0赫兹）同步移动头部。水平（偏航）和垂直（俯仰）平面内的头部运动分别用于测试水平和垂直VOR。所有受试者都轻松完成了VAT。水平测试的增益和相位结果均在正常范围内。在整个2至6赫兹范围内，垂直增益明显偏高。在较高频率下，平均垂直相位滞后减小。这些结果表明，急性期梅尼埃病患者的垂直VOR对日常活动中常见的更快的垂直头部运动高度敏感。
