改良乳突根治术前后骨导听阈变化及影响因素  

Analysis Changes of Bone Conduction Threshold （BC）, and it＆#39;s Impact Factors before and after open Modified Radical Mastoidectomy Surgery

作　　者：梅雪霜[1] 田怀谷[1] 胡洪义[1] 

机构地区：[1]北京大学深圳医院耳鼻咽喉科,广东深圳518036

出　　处：《中国伤残医学》2014年第11期12-14,共3页Chinese Journal of Trauma and Disability Medicine

摘　　要：目的：分析开放式改良乳突根治术前后患者骨导听阈的变化趋势及影响因素。方法：收集82例COM患者（92耳）基本信息，手术前后骨导阈（500Hz，1000Hz，2000Hz，4000Hz）值，诊断、手术方式、病变程度等。通过配对T检验、方差分析和协方差分析，分析骨导听阈的变化趋势及其影响因素。结果：患者术后各频率骨导听阈均有不同程度提高（P〈0．001），高频（2000Hz、4000 Hz）骨导听阈均有5分贝以上提高，胆脂瘤型患者、病变累及后鼓室患者和同时进行鼓室成型手术的患者高频骨导听阈提高更明显。结论：鼓室成形术可以导致患者高频骨导听力损失，越近鼓室的手术表现越明显。通过低中频ABG评估COM手术对改善患者听力的程度更客观。Objectives：To analyze changes of bone conduction threshold （ BC） , and it＇s impact factors before and after open modified radical mastoidectomy surgery.Methods：Collected 82 COM patients＇（92 ears） basic information, BC （500Hz, 1000Hz, 2000Hz, 4000Hz） value before and after operation, and the diagnosis, the operation modes, the lesion severity of COM, and so on.We used the paired T-test, variance analysis , and covariance analysis to analyze the change trend and the impact factors of BC .Results：After surgery, the BCs at all frequency increased （P〈0.001）, and BCs at high frequency （2000Hz, 4000Hz） increased more than 5 dB.The patients who diagnosed as cholesteatoma , or implemented tympanic cavity forming operations , had more BCs increasing at high frequency .. Conclusion：tympanoplasty can lead to bone conduction hearing loss at high frequency .Through ABGs at low or medium frequency to evaluating the degree of hearing improvement on patients after tympanoplasty are much more objective .

关 键 词：慢性中耳炎 骨导听阈 影响因素 改良乳突根治术 

分 类 号：R764.21[医药卫生—耳鼻咽喉科]