Murofushi Toshihisa, Iwasaki Shinichi, Ushio Munetaka
Department of Otolaryngology, University of Tokyo, Tokyo, Japan.
Acta Otolaryngol. 2006 Apr;126(4):364-7. doi: 10.1080/00016480500417189.
Inferior vestibular nerve functions could recover in patients with vestibular neuritis (VN).
Although the recovery of superior vestibular nerve functions has been reported, there is little information about the recovery of inferior vestibular nerve functions in patients with VN. This study was done to clarify if inferior vestibular nerve functions recover after an attack of VN.
Neuro-otological tests including vestibular evoked myogenic potential (VEMP) testing and caloric testing were sequentially performed in 13 patients with VN, who showed absence of VEMP on the affected side at the initial examination (7 men and 6 women, 28-82 years of age). VEMPs to click stimulation (95 dBnHL) were recorded with surface electrodes over each sternocleidomastoid muscle.
Among the 13 patients, 5 patients (4 men and 1 woman) showed recovery of VEMP responses. Four of the five patients (three men and one woman) showed recovery of VEMP to the normal range. It takes 6 months to 2 years to recover within the normal range. On the other hand, caloric responses recovered to the normal range only in one patient.
前庭神经炎（VN）患者的前庭下神经功能可恢复。
尽管已有报道称前庭上神经功能可恢复，但关于VN患者前庭下神经功能恢复的信息却很少。本研究旨在明确VN发作后前庭下神经功能是否会恢复。
对13例VN患者依次进行了包括前庭诱发肌源性电位（VEMP）测试和冷热试验在内的神经耳科学检查，这些患者在初次检查时患侧VEMP缺失（7例男性和6例女性，年龄28 - 82岁）。用表面电极在每块胸锁乳突肌上记录对点击刺激（95 dBnHL）的VEMP。
13例患者中，5例（4例男性和1例女性）VEMP反应恢复。这5例患者中有4例（3例男性和1例女性）VEMP恢复至正常范围。恢复至正常范围需要6个月至2年时间。另一方面，仅1例患者的冷热反应恢复至正常范围。
