Abstract

Objective. This study aimed to investigate the association between vestibular impairment and neurovascular compression at cerebellopontine angle (CPA) and internal auditory canal (IAC) in patients with idiopathic sudden sensorineural hearing loss (ISSNHL).
Methods. Seventy-one ISSNHL patients underwent audio-vestibular tests and magnetic resonance imaging (MRI) of CPA-IAC. The MRI findings of both ears were graded by Chavda, Gorrie and Kazawa systems.
Results. No significant association was found between different neurovascular types and the results of caloric test, vestibular evoked myogenic potentials and video head impulse test (vHIT). Chavda type II was more common in ISSNHL patients with vertigo. Tinnitus, initial and outcome hearing threshold showed no significant differences among different neurovascular types. ISSNHL patients with Gorrie type C had worse hearing prognosis than those with type B. ISSNHL patients with pathological vHIT results in the posterior semicircular canal were more prone to poor hearing recovery.
Conclusions. Vestibular testing results and radiological neurovascular compression signs in CPA-IAC region may not be associated in ISSNHL patients. Vestibular impairment is more closely related to hearing outcomes than neurovascular compression.

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Authors

Yingzhao Liu - Department of Otorhinolaryngology-Head and Neck Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. YL and PL contributed equally to the work.

Ping Lei - Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China. YL and PL contributed equally to the work.

Cen Chen - Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China

Kaijun Xia - Department of Otorhinolaryngology-Head and Neck Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China

Renhong Zhou - Department of Otorhinolaryngology-Head and Neck Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China

Yangming Leng - Department of Otorhinolaryngology-Head and Neck Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Institute of Otorhinolaryngology-Head and Neck Surgery, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Clinical Research Center for Deafness and Vertigo, Wuhan, China. Corresponding author - lengyangming@qq.com

Bo Liu - Department of Otorhinolaryngology-Head and Neck Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Institute of Otorhinolaryngology-Head and Neck Surgery, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Clinical Research Center for Deafness and Vertigo, Wuhan, China. Corresponding author - lengyangming@qq.com

Hongjun Xiao - Department of Otorhinolaryngology-Head and Neck Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Institute of Otorhinolaryngology-Head and Neck Surgery, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Hubei Province Clinical Research Center for Deafness and Vertigo, Wuhan, China. Corresponding author - lengyangming@qq.com

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Copyright (c) 2025 Società Italiana di Otorinolaringoiatria e chirurgia cervico facciale

How to Cite
Liu, Y., Lei, P., Chen, C., Xia, K., Zhou, R., Leng, Y., Liu, B., & Xiao, H. (2025). Neurovascular compression and vestibular compromises in idiopathic sudden sensorineural hearing loss. ACTA Otorhinolaryngologica Italica, 45(6), 419–430. https://doi.org/10.14639/0392-100X-A950
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