"Physiological" Ear Clicking: Its Origin and Potential Usability as a Test Tool for the Eustachian Tube Function
Karsten Ehrt1, Hans-Georg Fischer, Rüdiger Dahl
1*ENT Department, University Medicine, Rostock †ENT Department, Military Hospital, Hamburg, Germany.
Summary
Physiological ear clicks during swallowing originate from the opening of the Eustachian tube, possibly due to fluid disruption. These clicks may offer a new method for testing Eustachian tube function.
Area of Science:
- Otolaryngology
- Physiology
- Acoustics
Background:
- Physiological ear clicks are often unnoticed during swallowing or pharyngeal movements.
- Pathological ear clicks are frequent and disturbing.
Purpose of the Study:
- To investigate the origin of physiological ear clicks.
- To explore the potential of these clicks as indicators of Eustachian tube function.
Main Methods:
- A clinical experimental study was conducted.
- Ear clicks were recorded using a microphone in the ear canal.
- Recordings were performed concurrently with endoscopic or manometric evaluations of Eustachian tube function.
Main Results:
- Acoustic signals (clicks) were consistently recorded when the Eustachian tube opened.
- The clicks are hypothesized to result from the disruption of fluid or mucus films on the mucosa.
- Regular recording of clicks suggests potential diagnostic value.
Conclusions:
- Physiological ear clicks are linked to Eustachian tube opening.
- These clicks may serve as indicators for a novel Eustachian tube function test.
- Further research is needed to develop and validate this new test.
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