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87th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

04.05. - 07.05.2016, Düsseldorf

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High-frequency audiometry after diving

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Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Düsseldorf, 04.-07.05.2016. Düsseldorf: German Medical Science GMS Publishing House; 2016. Doc16hnod269

doi: 10.3205/16hnod269, urn:nbn:de:0183-16hnod2693

Published: March 30, 2016

© 2016 Bardanis.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Introduction: Due to the tonotopic arrangement of the cochlea standard pure tone audiometry cannot examine the whole length of the basilar membrane. High-frequency audiometry (HFA) can examine the basal end of it.

Objective: This paper aims at presenting HFA results in patients with hearing complaints after diving.

Methods: Patients complaining of hearing impairment and / or tinnitus and / or vertigo after diving and whose standard audiological examination was within normal range underwent HFA (10kHz, 12.5kHz, 16kHz). Eleven patients are included in this study.

Results: Amongst 22 examined ears, air conduction threshold exceeded normal range in 1 ear on 10kHz, in 4 ears on 12.5kHz and in 8 ears on 16kHz. Totally, in 9 out of the 22 examined ears HFA exceeded normal range at least in one frequency, though standard examination had proved negative.

Conclusion: HFA, especially the 16kHz frequency, is a very useful “tool” in the audiological test-battery in divers.

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