Kaur Kamaljit, Sonkhya Nishi, Bapna A S
SMS Medical College & Hospital, Jaipur.
Indian J Otolaryngol Head Neck Surg. 2006 Apr;58(2):128-32. doi: 10.1007/BF03050766.
Tympanosclerosis is a common clinico-pathological entity encountered by the otosurgeon. Its pathogenesis and optimum management have eluded the otologists since time immemorial. The present study was undertaken to study the incidence of tympanosclerosis amongst patients with chronic suppurative otitis media and to study the correlation between the degree of hearing loss and the site of tympanosclerosis. Audiometric and operative findings of 200 patients of chronic suppurative otitis media were analysed. The incidence of tympanosclerosis was found to be 19% (3d cases out of 200 patients). Most cases of tympanosclerosis had a dry ear on presentation (78.9%). When tympanosclerosis was confined only to the tympanic membrane. 83.3% of the cases had an air-bone-gap less than 40 dB. On the other hand, when tympanosclerosis affected both the tympanic membrane and the middle ear. 75% of the cases had an air-bone-gap more than 40 dB. The hearing loss associated with tympanosclerosis was of the conductive type in the majority of cases. Ossicular mobility was found to be normal in 71.1% of the cases.
鼓室硬化是耳科医生常见的临床病理实体。自远古以来，其发病机制和最佳治疗方法一直困扰着耳科医生。本研究旨在探讨慢性化脓性中耳炎患者中鼓室硬化的发病率，并研究听力损失程度与鼓室硬化部位之间的相关性。分析了200例慢性化脓性中耳炎患者的听力测定和手术结果。发现鼓室硬化的发病率为19%（200例患者中有38例）。大多数鼓室硬化病例就诊时耳内干燥（78.9%）。当鼓室硬化仅局限于鼓膜时，83.3%的病例气骨导差小于40dB。另一方面，当鼓室硬化累及鼓膜和中耳时，75%的病例气骨导差大于40dB。大多数情况下，与鼓室硬化相关的听力损失为传导性。在71.1%的病例中发现听骨链活动正常。
