总和电位在感音神经性聋中的诊断意义

Diagnostic significance of summating potential in sensorineural deafness.

作者信息

Kumagami H, Nishida H

出版信息

ORL J Otorhinolaryngol Relat Spec. 1977;39(3):139-47. doi: 10.1159/000275348.

Abstract

The polarity of the summating potential wave induced by electrocochleographical examination has an important bearing upon the pathophysiology or the prognostic evaluation of sensorineural deafness. Electrocochleographical examination was performed on cases of sudden deafness, Ménière's disease, progressive sensorineural deafness, sensorineural deafness due to barotrauma, etc. When the polarity of the summating potential showed an increased negative wave, physiological blockage in sensorineural structures was revealed. In other words, under such conditions sensorineural structures have a potential for activity although hearing acuity was damaged. On the other hand, when the summating potential has an increased positive polarity wave, gradual decrease of the hearing acuity was revealed.

摘要

耳蜗电图检查所诱发的总和电位波的极性，对于感音神经性聋的病理生理学或预后评估具有重要意义。对突发性聋、梅尼埃病、进行性感音神经性聋、气压创伤性聋等病例进行了耳蜗电图检查。当总和电位的极性显示负波增加时，提示感音神经结构存在生理性阻滞。换句话说，在这种情况下，尽管听力受损，但感音神经结构仍具有活动潜力。另一方面，当总和电位的正极性波增加时，则提示听力逐渐下降。