Department of Otolaryngology-Head & Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
Otol Neurotol. 2021 Apr 1;42(4):e483-e488. doi: 10.1097/MAO.0000000000002975.
To investigate usefulness of the video Head Impulse Test (vHIT) as a method for evaluating semicircular canal function in patients with otitis media with antineutrophil cytoplasmic antibody-associated vasculitis (OMAAV).
Retrospective case review.
Tertiary referral center.
Fourteen patients with OMAAV underwent vestibular examination.
The gain in vestibulo-ocular reflex (VOR) and the presence of catch-up saccade were examined for each semicircular canal.
Seven (50.0%) of the 14 patients felt subjective symptoms of disequilibrium. Dysfunction in at least one semicircular canal was detected in all ears of the OMAAV patients evaluated by vHIT. Dysfunction in posterior semicircular canal was detected more frequently than that in the anterior or horizontal canal. There were no significant correlations between the gain in VOR and hearing loss.
vHIT is thought to be the most suitable method for evaluating semicircular canal function in patients with OMAAV as vHIT is not influenced by middle ear pathology and was able to evaluate vertical canal function including the posterior canal.
探讨视频眼震试验（vHIT）作为评估抗中性粒细胞胞质抗体相关性血管炎伴中耳炎（OMAAV）患者半规管功能的方法的有效性。
回顾性病例研究。
三级转诊中心。
14 例 OMAAV 患者接受了前庭检查。
对每个半规管的前庭眼反射（VOR）增益和出现的追踪性眼跳进行检查。
14 例患者中有 7 例（50.0%）感到平衡失调的主观症状。通过 vHIT 评估，所有 OMAAV 患者的耳朵均发现至少一个半规管功能障碍。后半规管功能障碍的检出率高于前半规管或水平半规管。VOR 增益与听力损失之间无显著相关性。
vHIT 被认为是评估 OMAAV 患者半规管功能的最适宜方法，因为 vHIT 不受中耳病理的影响，能够评估包括后半规管在内的垂直半规管功能。
