Lee Ho-Seok, Song Ji-Nam, Park Jung Mee, Park Kyoung Ho, Kim Hyun Bum, Seo Jae-Hyun
Department of Otolaryngology-Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Korean J Audiol. 2014 Dec;18(3):131-6. doi: 10.7874/kja.2014.18.3.131. Epub 2014 Dec 22.
To investigate whether different vestibular function tests such as cervical vestibular evoked myogenic potential (cVEMP) and caloric test were correlated with severity, pattern and prognosis in idiopathic sudden sensorineural hearing loss (ISSNHL).
Ninety-two patients with unilateral ISSNHL were subjected to complete audiovestibular evaluation. cVEMP and caloric test results were compared with patients' initial and final audiogram. We classified patients in 4 groups as cochlear nerve (C) type, cochlear and superior vestibular nerve (C+S) type, cochlear and inferior vestibular nerve (C+I) type and cochlear, superior vestibular nerve, inferior vestibular nerve (C+S+I) type, for evaluation of the results. cVEMP and caloric tests were compared among the groups.
Abnormal caloric test results and abnormal cVEMP results were found in 50% and 31.6% patients, respectively. Multivariate analysis showed that abnormal caloric result (canal paresis) is a significant negative prognostic factor.
Initial vestibular function test can be valuable in predicting the final outcome in patients with ISSNHL.
探讨不同的前庭功能测试，如颈前庭诱发肌源性电位（cVEMP）和冷热试验，是否与特发性突发性感音神经性听力损失（ISSNHL）的严重程度、类型及预后相关。
对92例单侧ISSNHL患者进行了全面的听前庭评估。将cVEMP和冷热试验结果与患者的初始及最终听力图进行比较。为评估结果，我们将患者分为4组，即蜗神经（C）型、蜗神经和上前庭神经（C+S）型、蜗神经和下前庭神经（C+I）型以及蜗神经、上前庭神经、下前庭神经（C+S+I）型，并对组间的cVEMP和冷热试验结果进行比较。
分别有50%和31.6%的患者冷热试验结果异常及cVEMP结果异常。多因素分析表明，冷热试验结果异常（半规管麻痹）是一个显著的不良预后因素。
初始前庭功能测试对预测ISSNHL患者的最终结局可能具有重要价值。
