Abstract
Objective
We compare the long-term efficacy of the cartilage–perichondrium modified over-underlay technique and transtympanic underlay alone technique using endoscopic myringoplasty without tympanomeatal flap elevating for repairing large chronic perforations.
Material and methods
Nine chronic large perforations with mucosal chronic otitis media were recruited and randomly allocated to endoscopic cartilage–perichondrium modified over-underlay myringoplasty (MOUM, n = 55) and endoscopic cartilage–perichondrium transtympanic underlay alone myringoplasty (TUAM, n = 54). The graft success rate, hearing gain, mean operation time and postoperative complications were compared between the groups at 6 and 24 months.
Results
In total, 99 patients were finally analysed. The graft success rates 6 months after surgery between MOUM and TUAM groups were not significantly different (100.0% vs 96.0%, p = 0.484). However, the MOUM group had a significantly higher success rate 24 months after surgery than the TUAM group (93.9% vs 76.0%, p = 0.028). In addition, postoperative ABG < 10 dB was 73.5% patients in the MOUM group and 76.0% in the TUAM group, the difference wasn’t significant (p = 0.953). CT examination revealed well-pneumatised middle ears 24 months after surgery in both groups, and no middle ear cholesteatoma was observed.
Conclusion
Endoscopic modified cartilage–perichondrium over-underlay myringoplasty without tympanomeatal flap elevating is reliable and effective for repairing large perforations. It improves the long-term graft success rate compared to the endoscopic cartilage–perichondrium transtympanic underlay alone technique. The risk for iatrogenic cholesteatoma is minimal.
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Funding
This study was supported by Health Commission of Zhejiang province, China (Grants#2021KY1186) and the Science and Technology Agency of Yiwu city, China (Grants#2018-3-76).
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ZL designed the study and performed the surgical operations. Data collection were accomplished by KJ and JS. Data analysis and interpretation of data were performed by ZL. The first draft of the manuscript was written by ZL, and ZC. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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All procedures performed in this study were in accordance with the ethical standards of the local Ethics Committee of YiWu central hospital review board and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all of the participants.
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Lou, Z., Lou, Z., Jin, K. et al. Comparison of long-term outcome of two endoscopic transtympanic myringoplasty without tympanomeatal flap elevating for repairing large chronic perforations. Eur Arch Otorhinolaryngol 279, 2293–2301 (2022). https://doi.org/10.1007/s00405-021-06913-3
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DOI: https://doi.org/10.1007/s00405-021-06913-3