The characteristics of semicircular canal injury frequency in vestibular neuritis patients
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摘要: 目的:评估前庭神经炎患者的半规管损伤频率特征。方法:前庭神经炎患者53例,分别按规范完成检测半规管低频区功能的冷热试验(CT)、中频区功能的摇头试验(HST)和高频区功能的视频头脉冲试验(vHIT)。以CT单侧半规管反应非对称值(UW)、HST诱发摇头性眼震、vHIT的增益均值(vHIT-G)及是否出现扫视(vHIT-S)为观察指标,应用SPSS 17.0统计软件分析数据,分析前庭神经炎患者三项试验的结果特点,评估半规管高、中、低频区的功能状态。结果:53例前庭神经炎患者的CT、HST、vHIT-G及vHIT-S三项试验4个指标的阳性率分别为94.3%(50/53)、75.5%(40/53)、81.1%(43/53)、96.2%(51/53);其中28例病程≤7d者4个指标的阳性率分别为92.9%(26/28)、89.3%(25/28)、92.9%(26/28)、96.4%(27/28),25例病程>7d者的阳性率则分别为96.0%(24/25)、60.0%(15/25)、68.0%(17/25)、96.0%(24/25)。比较各指标阳性率,经χ2检验,CT与vHIT-G (P=0.076)、HST与vHIT-G (P=0.480)的差异均无统计学意义,而CT与HST (P=0.015)、vHIT-G与vHIT-S (P=0.032)的差异有统计学意义。比较病程≤7d患者的CT、HST、vHIT-G及vHIT-S扫视的阳性率,差异均无统计学意义;病程>7d的患者,除HST与vHIT-G外,余指标比较均差异有统计学意义;vHIT-G与vHIT-S相关性检验r=-0.437,P=0.006。结论:前庭神经炎患者的前庭损伤呈多频或全频特征,联合应用多频检测技术有助于前庭神经炎患者的临床诊断,也能够反映前庭功能的代偿及恢复情况。Abstract: Objective:To evaluate the frequency characteristics of semicircular canal injury in patients with vestibular neuritis.Method:Fifty-three patients with vestibular neuritis were respectively evaluated by caloric test (CT), head shaking test (HST), video head impulse test (vHIT), which reflects semicircular canal function in the low, middle, high frequency region.The asymmetric value of CT unilateral semicircular canal reaction (UW), head shaking nystagmus induced by HST, gain value of VHIT (VHIT-G) and presence or absence of saccade (VHIT-S) were used as observation indicators.The data were analyzed by SPSS 17.0 statistical software.The characteristics of the results of the three tests in patients with vestibular neuritis was analyzed and the functional status of the high, middle and low frequency regions of the semicircular canal was evaluated.Result:The positive rates of CT, HST, VHIT-G and VHIT-S in 53 patients with vestibular neuritis were 94.3% (50/53), 75.5% (40/53), 81.1% (43/53), 96.2% (51/53), respectively.The positive rates of CT, HST, VHIT-G and VHIT-S were 92.9% (26/28), 89.3% (25/28), 92.9% (26/28), 96.4% (27/28) in 28 cases with disease course ≤ 7 days, and the positive rates in 25 patients with disease course>7 days were 96.0% (24/25), 60.0% (15/25), 68.0% (17/25), 96.0% (24/25), respectively.Compared with the positive rate of each index, CT and VHIT-G (P=0.076), HST and VHIT-G (P=0.480) had no statistical significance.The difference between CT and HST (P=0.015), VHIT-G and VHIT-S (P=0.032) was statistically significant.The positive rates of CT, HST, VHIT-G and VHIT-saccade in patients with course of disease ≤ 7 days were compared, and there was no significant difference.In patients with disease course>7 days, except HST and VHIT-G, there were statistical differences in other indexes.The correlation test between VHIT-G and VHIT-S:r=-0.437, P=0.006.Conclusion:The vestibular injury in patients with vestibular neuritis showed in a manner of full frequency injury.The multi-frequency detection technique is helpful for the clinical diagnosis of vestibular neuritis, and also can reflect the compensation and recovery of vestibular function.
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Key words:
- vestibular neuritis /
- vertigo /
- semicircular canal /
- frequency
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