Prospective radiological study concerning a series of patients suffering from conductive or mixed hearing loss due to superior semicircular canal dehiscence
Prospective radiological study concerning a series of patients suffering from conductive or mixed hearing loss due to superior semicircular canal dehiscence
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DOI：
10.1007/s00405-008-0862-y
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发表时间：
2009-08-01
影响因子：
2.6
通讯作者：
Pouget, Jean Francois
中科院分区：
文献类型：
--
作者：
Martin, Christian;Chahine, Pierre;Pouget, Jean Francois
本研究的目的是了解上半规管裂开(SCD)所致鼓膜正常的孤立性传导性听力损失的发生率。这是一项前瞻性的放射学研究。272名患有单侧或双侧传导性或混合性听力损失的正常鼓膜患者被纳入一项前瞻性的放射学研究。所有患者均行高分辨率CT扫描。那些被发现患有单侧或双侧SCD的患者接受了进一步的病因学、临床和听力学评估。10例传导性或混合性耳聋患者均为单侧或双侧SCD。5例为双侧，最常见的是双侧被盖鼓室裂开，这支持了疾病先天本质的理论。症状与SCD的大小之间没有明显的相关性。由于患者没有前庭丧失能力的症状，他们没有因SCD手术闭塞而接受手术，并被转介到助听器专家以改善听力。SCD所致的传导性或混合性听力损失较为常见，我们认为有必要在任何传导性听力损失患者手术前进行系统的HRCT检查。
The aim of this study is to appreciate the incidence of patients with isolated conductive hearing loss with normal drum due to superior semicircular canal dehiscence (SCD). It is a prospective radiological study. Two hundred and seventy-two patients with a normal drum suffering from isolated unilateral or bilateral conductive or mixed hearing loss were included in a prospective radiological study. A high resolution computerized tomography (HRCT) was performed in all the patients. Those who were found to have a unilateral or bilateral SCD underwent further etiological, clinical, audiologic evaluation. Ten patients with conductive or mixed hearing loss were found to have a unilateral or bilateral SCD. The disease was bilateral in five cases, and most often associated with a dehiscence of the tegmen tympani on both sides, supporting the theory of the congenital nature of the disease. There was no clear correlation between symptoms and the size of the SCD. Because patients were not suffering from incapacitating vestibular symptoms, they were not operated for surgical occlusion of the SCD, and were referred to a hearing aid specialist to improve hearing. Conductive or mixed hearing loss due to SCD is relatively frequent, justifying in our opinion that a systematic HRCT be carried out before surgery of any patient with conductive hearing loss.