Artikel
High-frequency audiometry after diving
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Autoren
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Ioannis Bardanis
- General Hospital of Ikaria, Ikaria, Greece
| Veröffentlicht: | 11. April 2016 |
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Gliederung
Abstract
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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