Aladham Youssef, Ahmed Omar, Hassan Saad Ahmed Saad, Francis-Khoury Elias
Department of Otolaryngology and Head and Neck Surgery, Poole Hospital NHS Foundation Trust, Poole, UK.
Department of Otolaryngology, East Kent Hospitals University NHS Foundation Trust, Ashford, UK.
J Surg Case Rep. 2021 Jan 25;2021(1):rjaa592. doi: 10.1093/jscr/rjaa592. eCollection 2021 Jan.
Superior semicircular canal dehiscence (SSCD) syndrome was first reported in 1998 by Minor and comprises a spectrum of auditory and vestibular symptoms as a result of 'mobile third window' mechanism. The aetiology of SSCD is debated, but persistent infantile microstructure of the temporal bone was suggested. However, some authors related a 'second event', such as closed head trauma, temporal bone fracture and sudden increase in the intracranial pressure to the precipitation of its symptoms. In this article, we report a patient with a closed head trauma who developed unilateral auditory symptoms. High-resolution computed tomography images were obtained and confirmed bilateral SSCD with the normal middle ear structure. The patient was provided with a monaural hearing aid. Literature was searched for similar case reports or series where head trauma precipitated the symptoms of SSCD in anatomically susceptible individuals.
上半规管裂综合征（SSCD）于1998年由米诺首次报道，它是由“可移动第三窗”机制导致的一系列听觉和前庭症状。SSCD的病因存在争议，但有人提出颞骨存在持续的婴儿期微观结构。然而，一些作者将“二次事件”，如闭合性头部外伤、颞骨骨折和颅内压突然升高，与症状的出现联系起来。在本文中，我们报告了一名因闭合性头部外伤出现单侧听觉症状的患者。获取了高分辨率计算机断层扫描图像，证实双侧存在SSCD且中耳结构正常。为该患者配备了单耳助听器。检索文献以查找类似的病例报告或系列研究，即头部外伤在解剖学上易感个体中引发SSCD症状的情况。
