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摘要
ObjectiveTo describe the operative findings and surgical results of unilateral congenital middle ear malformations with intact external ear.MethodsA retrospective review was performed on 64 patients with unilateral congenital middle ear malformations and intact external ear who underwent exploratory tympanotomy from 2011 to 2016. Demographic data, clinical data, high-resolution computed tomography findings, audiometric data and intraoperative findings were collected. Audiological evaluations before and 6months after surgery were analyzed in 47 patients.ResultsThe most common malformation were mobile stapes with missing incus long process and stapes suprastructure. The air conduction pure tone average was 58.910.5dB HL (range 34.4-78.1dB HL) preoperatively and 28.8 +/- 10.6dB HL (range 9.4-55.6dB HL) postoperatively (P=0.000). Twenty-five cases (53.2%) acquired an air conduction hearing gain exceeding 30dB. Mean air-bone gap (ABG) was 44.5 +/- 9.4dB (range 22.5-66.4dB HL) before surgery and 15.6 +/- 9.3dB (range 0-35.6dB) after surgery (P=0.000) for an average gain of 28.8 +/- 11.5dB. Thirty-four cases (72.3%) showed a postoperative ABG of less than 20dB, 15 had an ABG within 10dB, and 4 had 0dB ABG after operation. No significant difference was observed for air conduction hearing gain regarding age (P=0.261) or types of malformations (mobile stapes footplate with or without a suprastructure anomaly, P=0.058).ConclusionUnilateral congenital middle ear malformations with intact external ear can be complex and diverse. Functional ossiculoplasty for patients with unilateral congenital middle ear malformations can achieve good hearing outcomes.
- 出版日期2018-10
- 单位中国人民解放军总医院
