摘要
目的:采用视频头脉冲试验联合温度试验,评估人工耳蜗植入术对水平半规管功能的影响。方法:采集人工耳蜗植入的患者18例,分别在术前1周、术后1周及术后1个月行温度试验和视频头脉冲试验(vHIT),以温度试验单侧水平半规管反应非对称值(UW)、双耳冷热水诱发的眼震极盛期的慢相角速度(SPV)及vHIT的增益值(vHIT-G)为指标,当UW>25%或双耳冷热水诱发眼震SPV均值<6°/s,记为温度试验阳性;当vHIT-G<0.8时,记为视频头脉冲试验阳性。结果:术耳温度实验SPV值分别为术前[(10.36±8.01)°/s;(14.77±14.24)°/s]、术后1周[(6.45±7.52)°/s;(5.14±4.67)°/s]、术后1个月[(6.05±3.86)°/s;(6.27±4.17)°/s]。术后1周及术后1个月SPV均值分别与术前1周SPV均值比较,差异均有统计学意义(P_(冷水术前/术后1周)=0.048,P_(热水术前/术后1周)=0.003,P_(冷水术前/术后1个月)=0.006,P_(热水术前/术后1个月)=0.002),术耳水平半规管增益值分别为术前1周(0.73±0.33),术后1周(0.65±0.32),术后1个月(0.71±0.36),其差异均无统计学意义(P_(术前/术后1周)=0.084,P_(术前/术后1个月)=0.679)。4例患者术后出现眩晕,其中1例人工耳蜗双侧植入者伴有步态不稳,其症状均在7天内消失,出现眩晕与其年龄、性别、术耳侧别、术前温度试验及vHIT结果均无相关性。结论:人工耳蜗植入术可对水平半规管功能造成影响,视频头脉冲试验联合温度试验进行水平半规管评估可起到互补作用。
Objective：To analyze the functional change of horizontal semicircular canals after cochlear implantation.Method：Eighteen patients were enrolled in this study.Their vestibular function was evaluated by using the caloric test and video head impulse test before and one week,one month after CI surgery,respectively.The unilateral weakness（UW）,slow phase velocity（SPV）in caloric test and gain in video head impulse test（vHIT-G）were observed.Caloric test was abnormal when UW25% or SPV mean6°/s,while vHIT was abnormal when vHIT-G0.8.Result：The SPV of the implanted ear were[（10.36±8.01）°/s;（14.77±14.24）°/s]pre-operatively,[（6.45±7.52）°/s;（5.14±4.67）°/s]1 week post-operatively and[（6.05±3.86）°/s;（6.27±4.17）°/s]1 month post-operatively.Statistically significant difference（P0.05）was found between pre-and post-operative period.The vHIT-G of the implanted ear were（0.73±0.33）pre-operatively,（0.65±0.32）1 week post-operatively and（0.71±0.36）1 month post-operatively.There was no statistically significant difference of vHIT-G between preand post-operative period（P_（pre-operative/1 week post-operative）=0.084,P_（pre-operative/1 month post-operative）=0.679）.Four patients presented with vertigo and one of them manifested slight unsteadiness post-operatively.All symptoms resolved within 7 days.These symptoms had no correlate with age,gender,implantedear and results of vestibular test.Conclusion：Cochlear implantation can affect the horizontal semicircular canal function,and the video head impulse test and caloric test should be used in a complementary fashion.
出处
《临床耳鼻咽喉头颈外科杂志》
CAS
北大核心
2018年第2期86-90,共5页
Journal of Clinical Otorhinolaryngology Head And Neck Surgery
关键词
人工耳蜗
水平半规管
视频头脉冲试验
温度试验
cochlear implantation
horizontal semicircular canal
head impulse test
caloric test
作者简介
通信作者：吴佩娜，E-mail：linwupeina@hotmail．com
