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Abstract
Background
The elevation of the tympanomeatal flap in endoscopic myringoplasty will cause considerable tissue damage.
Objective
To analyze anatomic and audiological results of tympanic membrane perforation underwent endoscopic transtympanic cartilage push-through myringoplasty without tympanomeatal flap elevation (EPM) and their relationship with the size of perforation.
Methods
A clinical retrospective study was performed on 75 cases of tympanic membrane perforation that underwent EPM from January 2019 to March 2021. Graft success and hearing outcomes were evaluated 3 months after surgery.
Results
The overall graft success rate for EPM was 94.7% (71/75). The total rate of hearing success, postoperative ABG ≤ 20 dB was achieved in 96.0% (72/75). The overall mean AC threshold of 35.1 ± 5.6 dB was lowered to 25.0 ± 4.8 dB postoperatively (p < .01). The mean pre- and postoperative ABG of all patients were 20.5 ± 4.6 dB and 10.4 ± 3.9 dB (p < .01), respectively. The graft success rates for the small, middle and large perforations groups were 100% (11/11), 100% (34/34) and 86.7% (26/30), respectively.
Conclusion
It is revealed that EPM is an effective method to repair perforation of tympanic membrane. The size of the tympanic membrane perforation may be a risk factor for perforation healing and hearing recovery, although EPM is available for large perforations.
Chinese abstract
背景：内窥镜鼓膜成形术中鼓膜瓣的抬升会造成相当大的组织损伤。
目的：分析因鼓膜穿孔行无鼓膜瓣抬升的内镜经鼓室软骨穿通鼓膜成形术（EPM）的解剖学和听力学结果及其与穿孔大小的关系。
方法：对75例从 2019 年 1 月到 2021 年 3 月接受EPM的鼓膜穿孔患者进行临床回顾性研究。移植成功和听力结果在术后 3 个月进行评估。
结果：EPM 的总体移植成功率为 94.7% (71/75)。听力总成功率, 术后 ABG≤ 20 dB 达到 96.0% (72/75)。总平均 AC 阈值为 35.1 ± 5.6 dB 降至术后的 25.0 ± 4.8 dB (p < .01)。所有患者的术前和术后平均ABG 分别为 20.5 ± 4.6 dB 和 10.4 ± 3.9 dB (p < .01)。小、中、大穿孔组的移植成功率分别为 100% (11/11)、100% (34/34) 和 86.7% (26/30)。
结论：EPM是修复鼓膜穿孔的有效方法。鼓膜穿孔的大小可能是穿孔愈合和听力恢复的危险因素, 尽管 EPM 可用于大穿孔。
Disclosure statement
No potential conflict of interest was reported by the author(s).