Singer Abd Elrheem Ahmed, Abdel-Naby Awad Osama G, El-Kader Rafeek Mohamed Abd, Mohamed Ahmed Rabeh
Otolaryngology, Head and Neck Department, Minia University Hospital, Minia, Egypt.
Otolaryngology, Head and Neck Department, Minia University Hospital, Minia, Egypt.
Am J Otolaryngol. 2018 Mar-Apr;39(2):88-93. doi: 10.1016/j.amjoto.2018.01.002. Epub 2018 Jan 5.
Chronic suppurative otitis media (CSOM) is the major cause of hearing impairment, especially conductive hearing loss. Few patients also had sensorineural component, the sensorineural hearing loss (SNHL) in CSOM is controversial, especially for safe mucosal type. This study aims to assess the relationship between the frequency of SNHL development in patients with safe mucosal CSOM and its relation to patient's age, sex, duration of disease, size of perforation and different audiological findings.
This is a prospective study conducted from June 2016 to June 2017 in a tertiary referral hospital. 200 patients with unilateral mucosal type of CSOM with normal contralateral ear were included in the study. The diseased ears were taken as study ears and normal ears as control ears in all patients. Detailed otologic history, clinical and audiometric findings were recorded and analyzed. Results were statistically compared in all patients for both study and control ears using different parameters.
Twenty patients had an average bone conduction threshold of all frequencies above 25dB, which implies SNHL (10%). The incidence of SNHL was statistically significant at higher speech frequencies. The incidence increased with the presence of Diabetes Mellitus, smoking, duration of disease, presence of active discharge and the increase in size of perforation. However, it is not age dependent and there was no difference between males and females.
Safe mucosal CSOM can cause SNHL with multiple predisposing factors.
慢性化脓性中耳炎（CSOM）是听力减退的主要原因，尤其是传导性听力损失。少数患者也存在感音神经性成分，CSOM中的感音神经性听力损失（SNHL）存在争议，尤其是对于安全黏膜型。本研究旨在评估安全黏膜型CSOM患者中SNHL发生频率及其与患者年龄、性别、病程、穿孔大小和不同听力学表现之间的关系。
这是一项于2016年6月至2017年6月在一家三级转诊医院进行的前瞻性研究。研究纳入了200例单侧黏膜型CSOM且对侧耳正常的患者。所有患者均将患耳作为研究耳，正常耳作为对照耳。记录并分析详细的耳科病史、临床和听力学检查结果。使用不同参数对所有患者的研究耳和对照耳的结果进行统计学比较。
20例患者所有频率的平均骨导阈值高于25dB，提示存在SNHL（10%）。SNHL在较高言语频率时的发生率具有统计学意义。随着糖尿病、吸烟、病程、存在活动性耳漏以及穿孔大小增加，发生率升高。然而，其与年龄无关，男女之间也无差异。
安全黏膜型CSOM可在多种易感因素作用下导致SNHL。
