Acoustic Trauma
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7/26/2019 Acoustic Trauma
1/3
13/5/2016 Acoustic trauma | University of Maryland Medical Center
http://umm.edu/health/medical/ency/articles/acoustic-trauma 1/3
Acoustic traumaToggle: English / Spanish
Definition
Acoustic trauma is injury to the hearing mechanisms in the inner ear. It is due to very loud noise.
Alternative Names
Injury - inner ear; Trauma - inner ear; Ear injury
Causes
Acoustic trauma is a common cause of sen sory hear ing loss . Damage to the hearing mechanismswithin the inner ear may be caused by:
Explosion near the ear
Firing a gun near the earLong-term exposure to loud noises (such as loud music or machinery)
Symptoms
Partial heari ng loss that most often involves exposure to high-pitched sounds. The hearing lossmay slowly get worse.
Noises, ringing in the ear ( tinnitus )
Ex ams and Tests
The health care provider will most often suspect acoustic trauma if hearing loss occurs after noiseexposure. Audiometry may determine how muc h hearing has been lost.
Treatment
The hearing loss may not be treatable. The goal of treatment is to protect the ear from further damage.Eardrum repair may be needed.
A hearing aid may help you communicate. You can also learn coping skills, such as lip reading.
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Outlook (Prognosis)
Hearing loss may be permanent in the affected ear. Wearing ear protection when around sources of loud sounds may prevent the hearing loss from getting worse.
Possible Complications
Progressive hearing loss is the main complication of acoustic trauma.
Tinnitus (ear ringing) can also occur.
When to Contact a Medical Professional
Call your health care provider if:
You have symptoms of acoustic trauma
Hearing loss occurs or gets worse
Prevention
Wear protective ear plugs or earmuffs to prevent hearing damage from loud equipment.Be aware of risks to your hearing from activities such as shooting guns, using chain saws, or driving motorcycles and snowmobiles.Do not listen to loud music for long periods of time.
Sound wave transmission
References
Lonsbury-Martin BL, Martin GK. Noise-induced hearing loss. In: Cummings CW, Flint PW, HaugheyBH, et al, eds. Otolaryngology: Head & Neck Surgery. 5th ed. Philadelphia, PA: Mosby Elsevier;2010:chap 151.
OHandley JG, Tobin EJ, Shah AR. Otorhinolaryngology. In: Rakel RE, ed. Textbook of Family Medicine . 8th ed. Philadelphia, PA: Saunders Elsevier; 2011:chap 19.
Version Info
Last reviewed on 8/4/2014Ashutosh Kacker, MD, BS, Professor of Clinical Otolaryngology, Weill Cornell MedicalCollege, and Attending Otolaryngologist, New York-Presbyterian Hospital, New York, NY.Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA,Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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