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Suction-generated noise in an anatomic silicon ear model.

Wolfgang Luxenberger¹, T Lahousen, C Walch

¹ENT Clinic Frohnleiten, Am Tabor 4, 8130 Frohnleiten, Austria. w.luxenberger@gmx.at

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery

|June 29, 2012

Summary

This summary is machine-generated.

Micro-suctioning the ear canal can generate high noise levels, reaching up to 146 dB(A) when obstructed. Clinicians should avoid prolonged suction near the eardrum and stop if unusual noise occurs.

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Area of Science:

Otolaryngology
Audiology
Biomedical Engineering

Background:

Micro-suction aural toilet is a common procedure for ear canal cleaning.
The potential for noise-induced hearing damage during this procedure is a concern.

Purpose of the Study:

To evaluate the noise levels generated during micro-suction aural toilet.
To identify factors contributing to high noise levels.

Main Methods:

An experimental study using an anatomic silicone ear model.
A microphone replaced the eardrum to measure sound levels.
Standard ENT suction devices and various sucker diameters were used.

Main Results:

Average noise levels ranged from 97-103.5 dB(A), with peaks reaching 118 dB(A).
Obstructed suction by earwax or debris caused peak noise levels of 146 dB(A).
The 'clarinet phenomenon' produced high noise levels irrespective of sucker type or diameter.

Conclusions:

Micro-suction can produce hazardous noise levels, particularly when obstructed or during the clarinet phenomenon.
Prolonged suction near the eardrum should be avoided.
Alternative methods like micro-forceps may be safer in specific cases.