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Surgical results of tympanoplasty after conversion to the endoscopic approach performed by a surgeon experienced in microscopic surgery

  • Otology
  • Published:
European Archives of Oto-Rhino-Laryngology Aims and scope Submit manuscript

Abstract

Purpose

The aim of this study was to analyze the surgical outcomes of endoscopic tympanoplasty (ET) type I, and to investigate the learning curve of ET type I in a surgeon experienced in microscopic surgery.

Methods

We retrospectively studied patients with tympanic membrane perforations who had undergone ET type I from January 2015 to June 2020. All procedures were performed by a single senior surgeon with considerable microscopic experience. We compared the perforation closure rate in relation to age, previous ear surgery history, graft material, size, and location of perforation. We compared the operation time according to the number of operated patients.

Results

A total of 399 patients were enrolled. The success rate of ET type I was 92.7%. Age, prior ear surgery, graft material, size, and location of perforation did not influence the surgical outcomes. The surgical time for the initial ten cases was the longest (78.3 min), and stabilized after the first 100 cases to under 60 min. The surgical success rate was 96.0% in the first 50 cases, and decreased to approximately 92% afterwards.

Conclusion

The surgical time largely decreased with the number of operated patients. Since the operations were performed by a surgeon experienced in microscopy, the success rate of initial cases was not low, even though the operation time of these initial cases was longer. We believe that endoscope provides a new perspective on ear surgery if it could overcome the difficulties in the early stage.

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Acknowledgements

We would like to thank Editage (www.editage.com) for English language editing

Funding

This research was supported by a grant of the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (grant number: HR20C0021).

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Authors and Affiliations

  1. Department of Otolaryngology—Head and Neck Surgery, Chonnam National University Hospital and Chonnam National University Medical School, 42 Jebong-ro Dong-gu, Gwangju, 501-757, Korea

    Hong Chan Kim, Hyung Chae Yang, Sung Su Lee & Hyong-Ho Cho

Authors
  1. Hong Chan Kim
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  2. Hyung Chae Yang
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  3. Sung Su Lee
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  4. Hyong-Ho Cho
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Contributions

Conceptualization and supervision: HHC (ORCID: 0000–0002-1331–4039). Manuscript draft: HCK (ORCID: 0000–0002-3466–4820). Revision of the manuscript: HCY (ORCID: 0000–0002-9187–1367). Data collection and analysis: SSL (ORCID: 0000–0002-0755-110X).

Corresponding author

Correspondence to Hyong-Ho Cho.

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Conflict of interest

No authors have any conflicts of interest.

Ethical approval

The research project was approved by the verification service and the ethics committee of Chonnam National University. (IRB No. CNUH-2019–060).

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All authors have agreed to submit the manuscript.

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Kim, H.C., Yang, H.C., Lee, S.S. et al. Surgical results of tympanoplasty after conversion to the endoscopic approach performed by a surgeon experienced in microscopic surgery. Eur Arch Otorhinolaryngol 279, 3407–3414 (2022). https://doi.org/10.1007/s00405-021-07093-w

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  • DOI: https://doi.org/10.1007/s00405-021-07093-w

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