先天性外中耳畸形CT影像与听力重建的相关分析  

Relationship between results of hearing surgery and CT characteristics with congenital external and middle ear malformation

作　　者：钟海林[1] 门造[1] 蒋静[1] 

机构地区：[1]解放军303医院耳鼻咽喉头颈外科,广西南宁530021

出　　处：《中国现代医学杂志》2007年第12期1474-1475,共2页China Journal of Modern Medicine

摘　　要：目的探讨先天性外中耳畸形鼓室成形手术治疗的疗效与CT影像特征的关系。方法对49例(50耳)先天性外中耳畸形患者术前CT影像检查分型与鼓室成形听力重建术后听力效果进行分析。结果50耳术后近期效果表明:语言区频率(气导)提高>10dB有41耳(41/50,82%),其中CT影像分类Ⅰ型23耳(23/23,100%),Ⅱ型15耳(15/18,83%),Ⅲ型3耳(3/9,33.3%);有27耳(27/50,54%)术后实用听阈≤40dB。结论先天性外中耳畸形进行手术治疗对听力提高的效果是确切的。CT影像显示耳畸形程度小的患者术后听力提高的幅度大。[Objective] To investigate the relationship between the results of hearing surgery of congenital malformation of external and middle ear and the CT characteristics. [Methods] The data of CT characteristics and the hearing results after tympanoplasty of 49 patients （50 ears） with congenital malformation of external and middle ear were analysed retrospectively. [Results] During the follow-up of 1 to 5 years, 41 ears （41/50, 82%） had hearing improvement; 27 ears （27/50, 54%） had obtaind functional hearing≤40 dB. [Conclusion] The more less of the degree of malformation, the best hearing result of surgery. The operation would obtain good result of hearing in the treatment of congenital malformation of extemd and middle ear.

关 键 词：外、中耳畸形 听力 CT 

分 类 号：R764.7[医药卫生—耳鼻咽喉科]