脳神経血管減圧術後に生じる聴力障害の発生機序 : 術中聴覚脳幹誘発電位記録および術後神経耳科的検査所見よりの検討

概要

論文の詳細を見る
In 35 posterior fossa operations with intraoperative brain-stem auditory evoked potential (BAEP) monitoring, there were seven microvascular decompression (MVD) operations performed for five cases of hemifacial spasm and two of trigeminal neuralgia. Among these seven patients, three cases, two of hemifacial spasm and one of trigeminal neuralgia, showed postoperative hearing disturbance. In these cases, intraoperative BAEPs showed aggravations of all waveform components including wave I. Otoneurological examinations revealed the hearing disturbances were caused not only by retrocochlear lesions but also by cochlear lesions. These findings suggest that postoperative hearing disturbance after MVD surgery is deeply related to circulatory disturbance of the internal auditory artery.
日本脳神経外科学会の論文
1987-08-15