Circumferential subannular tympanoplasty: surgical and hearing outcome in 224 ears with subtotal perforation

Abstract

Background

Subannular tympanoplasty is a newer technique with limited research articles in the literature. These articles have limitation in terms of sample data. We reviewed outcome of subannular tympanoplasty performed during last five years in our center.

Objective

To determine the surgical and hearing outcome of circumferential subannular tympanoplasty.

Methods

A retrospective observational study was performed in a tertiary care academic center involving 224 subjects with mucosal chronic otitis media who underwent circumferential subannular type 1 tympanoplasty.

Results

Complete neo-tympanum was found in 213 cases (95.1%) at the end final follow period of 12 months after surgery. Eleven tympanic membranes did not take up the graft and considered failure at the end of 6 months after surgery. All of them were subjected for revision surgery and showed intact neo-tympanum after 12 months of surgery. The hearing outcome showed significant improvement in air conduction thresholds from 42.54 ± 13.04 dB to 30.48 ± 10.61 dB at the end of one year. No surgical complication was observed in the study group.

Conclusion

The circumferential subannular tympanoplasty carries good surgical success and should be preferred in large and subtotal perforations. Randomized controlled trials are warranted to overcome the limitations in the present study.

Significance

This is the first study showing outcome of subannular tympanoplasty in large sample size of more than 200.

Chinese abstract

背景：环状鼓室成形术是一种较新的技术, 文献中仅有有限的有关研究文章。这些文章在样本数据方面是有限的。我们审查了过去五年在我们中心进行的环状鼓室成形术的结果。

目的：确定环状鼓室成形术的手术和听力结果。

方法：在一个三级护理学术中心进行了一项回顾性观察研究, 涉及 224 名接受环状1型鼓室成形术的慢性黏膜性中耳炎的受试者。

结果：术后12个月最终随访期发现 213 例（95.1%）具有完整的新鼓室。 在手术后 6 个月末发现11 个鼓膜没有吸收移植物, 宣告失败。他们都接受了修复手术并在手术 12 个月后发现新鼓室完好无损。听力结果显示, 一年末, 气导阈值从 42.54 ± 13.04 dB 提高到 30.48 ± 10.61 dB。研究组未观察到手术并发症。

结论：环状鼓室成形术手术成功率高, 应运用于大的和部分穿孔情况下。有必要进行随机对照试验来克服本研究的局限性。

意义：这是首项在超过200的大样本中显示环状鼓室成形术结果的研究。

Keywords:

• Tympanoplasty
• tympanoplasty methods
• tympanic membrane perforation

Disclosure statement

No potential conflict of interest was reported by the author(s).