gms | German Medical Science

86. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V.

13.05. - 16.05.2015, Berlin

External auditory canal atresia – Our methods to speed up procedure with maximal safety and efficacy

Meeting Abstract

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  • corresponding author Adam Perenyi - Dept of Otorhinolaryngology, Head and Neck Surgery, Szeged, Hungary
  • Attila Nagy - Dept. of Otorhinolaryngology, Head and Neck Surgery, Szeged, Ungarn
  • Jozsef Geza Kiss - Dept. of Otorhinolaryngology, Head and Neck Surgery, Szeged, Ungarn
  • Laszlo Rovo - Dept. of Otorhinolaryngology, Head and Neck Surgery, Szeged, Ungarn

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 86. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Berlin, 13.-16.05.2015. Düsseldorf: German Medical Science GMS Publishing House; 2015. Doc15hnod436

doi: 10.3205/15hnod436, urn:nbn:de:0183-15hnod4360

Veröffentlicht: 26. März 2015

© 2015 Perenyi et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen. Er darf vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden. Lizenz-Angaben siehe http://creativecommons.org/licenses/by-nc-nd/3.0/.


Gliederung

Text

Introduction: External auditory canal atresia is a rare congenital disorder which affects one or both ears. With a conductive haring loss of 60 dB, even unilateral atresia affects hearing related social skills. Reconstruction surgery is difficult and hazardous and functional results may be insufficient thus making bone-conduction hearing aids the first-line therapy nowadays.

Methods: Two 6-year-old children with unilateral cartilaginous and bony external auditory canal atresia were enrolled. Investigation involved physical examination, pure-tone and speech audiometry, and high-resolution computed tomography with three dimensional reconstructions. Reconstruction surgery from retroauricular approach comprised maximal enlargement of the tympanic and mastoid cavities while the facial nerve canal was preserved. The cavities were closed with an adapted conchal cartilage, the medial part of which was made thinner to serve as a tympanic membrane.

Results: Postoperative period and facial nerve function were normal. Hearing improvement reached the level above the social threshold, with which the subjects were absolutely satisfied. The reconstructed auditory canal remained stable and widely patent during the follow-up period of 1 year.

Conclusion: The authors highlight that surgical reconstruction of the external auditory canal is safe and effective and involves reasonably short surgical time. Stable audiological benefits improve patients’ satisfaction and quality of life without the necessity of hearing aids. The procedure is essentially assisted by careful preoperative imaging techniques and intraoperative facial nerve monitoring. Further improvement in hearing levels can be reached in a second sit by thinning down and readapting the conchal cartilage which serves as a tympanic membrane.

Supported by: clinical associates

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