Villarreal I M, Méndez D, Silva J M Duque, Del Álamo P Ortega
Otorhinolaryngology Department, "Móstoles" University Hospital, Madrid, Spain.
Case Rep Otolaryngol. 2016;2016:2123182. doi: 10.1155/2016/2123182. Epub 2016 Sep 21.
. Labyrinthine concussion is a term used to describe a rare cause of sensorineural hearing loss with or without vestibular symptoms occurring after head trauma. Isolated damage to the inner ear without involving the vestibular organ would be designated as a cochlear labyrinthine concussion. Hearing loss is not a rare finding in head trauma that involves petrous bone fractures. Nevertheless it generally occurs ipsilateral to the side of the head injury and extraordinarily in the contralateral side and moreover without the presence of a fracture. . The present case describes a 37-year-old patient with sensorineural hearing loss and tinnitus in his right ear after a blunt head trauma of the left-sided temporal bone (contralateral). Otoscopy and radiological images showed no fractures or any abnormalities. A severe sensorineural hearing loss was found in his right ear with a normal hearing of the left side. . The temporal bone trauma requires a complete diagnostic battery which includes a neurotologic examination and a high resolution computed tomography scan in the first place. Hearing loss after a head injury extraordinarily occurs in the contralateral side of the trauma as what happened in our case. In addition, the absence of fractures makes this phenomenon even more unusual.
迷路震荡是一个术语，用于描述头部外伤后出现的感音神经性听力损失的罕见原因，可伴有或不伴有前庭症状。内耳的孤立损伤而不涉及前庭器官将被称为耳蜗迷路震荡。听力损失在涉及岩骨骨折的头部外伤中并非罕见发现。然而，它通常发生在头部受伤一侧的同侧，极少发生在对侧，而且在没有骨折的情况下也会出现。本病例描述了一名37岁患者，在左侧颞骨（对侧）钝性头部外伤后出现右耳感音神经性听力损失和耳鸣。耳镜检查和影像学图像未显示骨折或任何异常。发现他右耳有严重的感音神经性听力损失，左耳听力正常。颞骨外伤需要一套完整的诊断方法，首先包括神经耳科检查和高分辨率计算机断层扫描。头部受伤后的听力损失如我们病例中那样异常地发生在创伤的对侧。此外，没有骨折使这种现象更加不寻常。
