全耳内镜下中耳乳突部胆脂瘤手术的短期效果观察

Short Term Outcomes of Transcanal Endoscopic Ear Surgery for Mastoid Cholesteatoma

目的探讨经外耳道全耳内镜下处理中耳乳突部胆脂瘤的可行性和有效性。方法回顾性分析2019年9月至2020年5月收治的32例累及乳突的胆脂瘤患者经外耳道全耳内镜下的手术临床资料。结果32例患者气导平均听阈术前为56.52±4.89dB HL,术后6月为38.49±3.82)dBHL,差异有统计学意义(t=22.59,P=0.00);平均气骨导距术前为31.45±4.52dBHL,术后6月为17.36±5.14 dBHL,差异有统计学意义(t=15.35,P=0.00)。所有患者鼓膜愈合良好,人工听骨无外露脱出,无面瘫、无眩晕,无听力进一步下降。结论经外耳道入路全耳内镜下乳突部手术术后患者听力较前提高,是安全有效的手术方式。

Objective To report outcomes of transcanal endoscopic ear surgery for mastoid cholesteatoma.Methods Data from 32 patients who underwent transcanal endoscopic ear surgery for mastoid cholesteatoma from September 2019 to May 2020 were retrospectively analyzed.Results Mean preoperative air conduction threshold was 56.52±4.89 dB HL,compared to 38.49±3.82 dB HL 6 months after surgery(t=22.59,P=0.00).Similarly,mean air-bone gap was reduced from 31.45±4.52 dB preoperatively to 17.36±5.14 dB postoperatively(t=15.35,P=0.00).There was no facial paralysis,dizziness or additional hearing loss after surgery in all patients,but well healed tympanic membrane and no artificial ossicle prolapse.Conclusion Endoscopic ear surgery through the external auditory canal on for mastoid cholesteatoma can improve hearing.It is a safe and effective surgical tool.