Vartiainen E, Vartiainen J
Department of Otolaryngology, University of Kuopio, Finland.
Ear Nose Throat J. 1995 Mar;74(3):160-2, 164.
Hearing results in 349 chronic ears with cholesteatoma were evaluated. The great majority of the patients underwent canal wall-down mastoidectomy as a one-stage procedure. After a mean follow-up period of 7.3 years, 35% of the ears operated on showed hearing levels of 30 dB or better. Hearing improved in 30%, remained unchanged in 55%, and worsened in 15%. The mean hearing gain was only 5 dB. In 23% of ears with otherwise successful outcomes the tympanum turned fibrotic, leading to poor hearing function.
对349例慢性胆脂瘤型中耳炎患者的听力结果进行了评估。绝大多数患者接受了开放式乳突根治术作为一期手术。平均随访7.3年后，35%接受手术的耳朵听力水平达到30分贝或更好。听力改善的占30%，不变的占55%，恶化的占15%。平均听力增益仅为5分贝。在23%手术结果成功的耳朵中，鼓膜纤维化，导致听力功能不佳。
