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目的探讨采用耳内镜技术治疗外耳道胆脂瘤的手术方法和疗效。方法回顾性分析2006—2008年采用耳内镜技术治疗30例外耳道胆脂瘤患者的临床效果。30例患者中传导性聋患者26例,言语频率平均气导听阈为35(s=6.3)dB HL;4例为混合性聋,言语频率平均气导听阈为65.4 dB HL,平均骨导听阈为45.5dB HL。结果临床资料完整并经治疗后随访6~12个月,30例患者术后气导听阈均有较大提高,言语频率平均气导听阈提高15~23 dB HL。无1例手术后并发症。随访1~3年未见复发。其中治愈27例(90%),好转3例(10%),总有效率为100%。结论颞骨薄层CT扫描对术前诊断有很好的指导意义。耳内镜对治疗外耳道胆脂瘤具有微创、快捷、预后佳的特点。
Objective To investigate the surgical methods and curative effects of external ear canal cholesteatoma treated with endoscopic technique. Methods The clinical results of 30 cases of external auditory canal cholesteatoma treated with endoscopic technique during 2006-2008 were analyzed retrospectively. Thirty-six patients with conductive deafness had mean hearing threshold of 35 (s = 6.3) dB HL; four had mixed deafness with a mean hearing threshold of 65.4 dB HL and an average hearing threshold of 45.5dB HL. Results After complete clinical data and follow-up of 6 to 12 months after treatment, the air-conduction hearing thresholds of the 30 patients were significantly increased after treatment. The mean hearing-induced hearing threshold was increased by 15-23 dB HL. No case of postoperative complications. Follow-up 1 to 3 years no recurrence. Among them, 27 cases were cured (90%), 3 cases improved (10%), and the total effective rate was 100%. Conclusion Thin layer CT scan of the temporal bone has a good guiding significance for preoperative diagnosis. Endoscopic treatment of external auditory canal cholesteatoma with minimally invasive, fast, good prognosis.