下颌气囊压力反馈装置应用于前庭诱发肌源性电位检测

Vestibular Evoked Myogenic Potentials(VEMP): Clinical Setting and Reproducibility

钱炜;陶泽璋;

1:武汉大学人民医院耳鼻咽喉-头颈外科

2:江苏大学附属人民医院耳鼻咽喉科

摘要
目的介绍一种监测和控制胸锁乳突肌收缩力度的下颌气囊压力反馈装置,以提高前庭诱发肌源性电位(vestibular evoked myogenic potential,VEMP)检测结果的可重复性和可靠性。方法研究对象为19名健康志愿者,12名男性,平均年龄34.0±7.7岁;7名女性,平均年龄29.8±2.9岁;对受试者进行VEMP检测,测试时应用下颌气囊压力反馈装置。受检者取坐位,将下颌置于连接压力计的气囊上,以颈部肌肉牵引下颌压迫气囊,维持压力在120mmHg。记录胸锁乳突肌电位P13和N23反应时间、P13-N23峰值差。对其中9名志愿者连续三周每周检测一次,以检验其可重复性。结果 19例受试者P13和N23反应时间分别为13.97±1.33和24.03±1.79ms,P13-N23峰值差平均为66.89±44.1μV。左右耳之间各项指标差异均无统计学意义。9例重复检测者的结果具有良好的可重复性,P13和N23反应时间组内相关系数分别为0.8和0.93,P13-N23峰值差组内相关系数为0.97。结论行VEMP检测时应用下颌气囊压力反馈装置简单易行,受检者在检测过程中可以维持胸锁乳突肌收缩力度,提高检测结果的可重复性和可靠性。
关键词
前庭功能;前庭诱发肌源性电位;胸锁乳突肌
基金项目(Foundation):
作者
钱炜;陶泽璋;
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