中文摘要：

突发性聋（简称突聋）是指在3d或更短时间内突然发生的、至少在相连的2个频率听力下降20dB以上的非波动性感音神经性聋。其症状以耳蜗损伤所致的听力下降为主,28%-57%的患者伴有眩晕等症状。因为耳蜗和前庭在解剖上通过膜迷路以及其内的内淋巴液相连,在血管和神经支配上关系紧密,一般认为,突聋伴发的眩晕是前庭损害的结果。不少研究也已证明,突聋患者在耳蜗损伤的同时,可能伴有前庭功能的障碍。

英文摘要：

Hearing loss caused by cochlear damage is the main symptom of sudden deafness（SD）.Some patients also suffer from vestibular symptoms.In recent years,more attention has been paid to the vestibular dysfunction in patients with SD.The lesions could involve the whole inner ear in SD patients with and without vertigo.Comprehensive evaluation of vestibular function may help us understand the extent of lesions in sudden deafness and analyze the pathogenesis of disease.A less involvement of inner ear lesion may indicate a better hearing recovery.