Brain stem auditory evoked potentials in patients with hemifacial spasm
Brain stem auditory evoked potentials in patients with hemifacial spasm
复制标题
面肌痉挛患者的脑干听觉诱发电位
DOI：
10.1288/00005537-198208000-00003
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
P. Jannetta
中科院分区：
文献类型：
--
作者：
Margarbta B. Møsller;Aage R. Møsller;P. Jannetta
Brain stem auditory evoked potentials (BSEP) were elicited and recorded from the spasm side and from the non‐spasm side of 39 patients operated upon to relieve hemifacial spasm. Thirty‐seven patients were studied before the microvascular decompression surgery at the root entry zone of the facial nerve was performed. Thirty‐one patients were studied 4 to 10 days postoperatively, and 7 were evaluated a second time, 6 weeks to 6 months after surgery. The latencies of peaks III and V of the ipsilaterally recorded BSEP were statistically significantly (p<0.05) larger on the spasm side than were those recorded on the non‐spasm side. The I to III interwove latencies did not show any statistically significant difference. This implies that the effects of hemifacial spasm are not limited to the facial nerve but extend to other cranial nerves and other parts of the brain stem than those involved in facial motor function. The pure tone thresholds recorded before and after the operations were essentially the same in the majority of the patients, were 10 to 15 dB lower in 13% of the patients postoperatively, and were 10 to 15 dB higher in 13% of the patients postoperatively. One patient suffered a moderate sensorineural low‐frequency hearing loss postoperatively.
