It is defined as a 30-dB sensorineural hearing loss occurring in three contiguous frequencies, or at least loss in two adjacent frequencies of ≥20 dB and developing over 3 days ( 3). Sudden sensorineural hearing loss (SSNHL) is a serious otological disorder with an annual incidence of 2.4–27 people per 100,000 people ( 1, 2). When evaluating the vestibular dysfunction in SSNHL patients, more attention should be paid to the audiogram configuration. However, after classification by audiogram configurations, there was no statistical difference in the abnormal rates of all vestibular function tests or the number of involved VEOs between the profound SSNHL patients with or without vertigo.Ĭonclusion: The relationship between the involvement of vestibular dysfunction and vertigo symptoms in patients with SSNHL was significantly different before and after audiogram classification. The prognosis was related to the abnormal rate of cVEMP and the number of involved VEOs in both vertigo group ( p = 0.008, r = 0.482 p = 0.039, r = 0.385, respectively) and non-vertigo group ( p = 0.016, r = 0.520 p = 0.022, r = 0.495, respectively), and it was especially related to the audiogram configurations in the vertigo group ( p < 0.001, r = 0.692). The number of involved VEOs was related to the initial PTA in the vertigo group ( p = 0.002, r = 0.541) and non-vertigo group ( p = 0.042, r = 0.446). Results: Significant differences in the initial audiogram configurations ( p = 0.033) and the abnormal rates of the posterior semicircular canal (PSC) ( p = 0.035) and oVEMP ( p = 0.046) were found between the two groups. Additionally, the vestibular functions in a subgroup of profound SSNHL patients were further compared within groups with or without vertigo. The correlations of audiogram configurations, initial pure-tone average (PTA), number of involved VEOs, prognosis (complete recovery rate), and vestibular functions were analyzed between the two groups. The involved vestibular end organs (VEOs) were verified by a battery of vestibular function tests including video head impulse test (vHIT), cervical vestibular-evoked myogenic potential (cVEMP), and ocular VEMP (oVEMP). Methods: A total of 50 patients with unilateral SSNHL were retrospectively divided into the vertigo group and non-vertigo group depending on the presence of vertigo. Object: We aimed to identify the relationship between vertigo symptoms and the involvement of vestibular dysfunction in sudden sensorineural hearing loss (SSNHL) and the contribution of audiogram classification. 3Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai, China.2Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China.1Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.Zhuang Jiang 1,2,3 † Jiajia Zhang 1,2,3 † Ying Wang 1,2,3 Xuan Huang 1,2,3 Qingxiu Yao 1,2,3 Yanmei Feng 1,2,3 Shujian Huang 1,2,3 * Hui Wang 1,2,3 * Shankai Yin 1,2,3
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