Mori N, Koshimune A, Asai H
Department of Otolaryngology, Kagawa Medical School, Japan.
ORL J Otorhinolaryngol Relat Spec. 1990;52(1):10-5. doi: 10.1159/000276096.
The positive summating potential (+SP) in Menière's disease was compared with that in normal ears and in cochlear deafness of other origin than endolymphatic hydrops in order to assess a specificity of the +SP in Menière's disease. The +SP was recorded in 21 of 47 Menière ears (45%) on stimulation with 8-kHz tone bursts, whereas the +SP was recorded in none of 10 normal-hearing ears and in 1 of 28 ears with cochlear deafness of other origin than endolymphatic hydrops (4%). The incidence of the +SP in Meniére's disease was higher on stimulation with 8-kHz tone bursts than with 4-, 2- and 1-kHz tone bursts and clicks. No correlation between SP amplitudes recorded with 2- and 8-kHz tone bursts was found. The results suggest that Menière's disease may involve a pathophysiological condition which allows the +SP to be frequently recorded.
为评估梅尼埃病中阳性总和电位（+SP）的特异性，将梅尼埃病患者的+SP与正常耳以及除内淋巴积水外其他病因导致的耳蜗性聋患者的+SP进行比较。在用8kHz短纯音刺激时，47例梅尼埃病耳中有21例记录到+SP（45%），而10例听力正常的耳中均未记录到+SP，28例除内淋巴积水外其他病因导致的耳蜗性聋耳中仅有1例记录到+SP（4%）。与4kHz、2kHz、1kHz短纯音及短声刺激相比，8kHz短纯音刺激时梅尼埃病患者中+SP的发生率更高。未发现用2kHz和8kHz短纯音刺激时记录到的SP振幅之间存在相关性。结果表明，梅尼埃病可能涉及一种病理生理状态，使得+SP能够频繁被记录到。
