Kurzyna Agnieszka, Hassmann-Poznańska Elzbieta, Topolska Małgorzata Maria
Klinika Otolaryngologii Dzieciecej AM w Białymstoku.
Otolaryngol Pol. 2005;59(2):257-62.
The aim of this study was to assess the effect of the middle ear status on the recording of air- and bone-conducted vestibular evoked myogenic potential. Forty eight children were included in the study, ranging in age from 4 to 10 years. All of the children underwent otoscopy, pure tone audiometry, tympanometry and air- and bone-conducted VEMP in response to click. There were 3 groups according to the condition of the middle ear: group I--52 ears (type A and C1 tympanogram, pure tone average < or = 20 dB), group II--23 ears (type C2 and B tympanogram, pure tone average < or = 20 dB), group III--21 (type B tympanogram, pure tone average > 20 dB). The threshold, presence of correct waveform morphology of the response and latency was evaluated. The condition of the middle ear has no significant effect on the recording of VEMP and mean level of the response threshold with bone stimulation, based on the performed studies. However, with air stimulation it has effect on the recording of VEMP, increase of the mean threshold response and shortening of latency p13 and n23.
本研究的目的是评估中耳状态对气导和骨导前庭诱发肌源性电位记录的影响。48名年龄在4至10岁的儿童纳入本研究。所有儿童均接受了耳镜检查、纯音听力测定、鼓室图检查以及对短声刺激的气导和骨导VEMP检查。根据中耳状况分为3组：I组——52耳（A型和C1型鼓室图，纯音平均听阈≤20 dB），II组——23耳（C2型和B型鼓室图，纯音平均听阈≤20 dB），III组——21耳（B型鼓室图，纯音平均听阈＞20 dB）。评估了反应的阈值、正确波形形态的存在情况以及潜伏期。基于所进行的研究，中耳状况对VEMP记录及骨刺激时反应阈值的平均水平无显著影响。然而，气刺激时，其对VEMP记录、平均阈值反应的增加以及潜伏期p13和n23的缩短有影响。
