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September 1955

Acoustic Trauma

Author Affiliations

From the Hearing Clinic, Department of Oto-Rhinology, Temple University School of Medicine.

AMA Arch Otolaryngol. 1955;62(3):235-241. doi:10.1001/archotol.1955.03830030001001

Acoustic trauma may be defined as the sound-induced injury to the neural mechanism of hearing. Most frequently, it represents the effects of chronic auditory fatigue, the onset being insidious and loss of hearing slowly progressive, while tinnitus—in the uncomplicated case—is either entirely absent, or it is mild and not readily measurable. Larsen1 observed that frequently after the initial exposure a person experienced a ringing or buzzing in the ear and that the tinnitus vanished after staying several days in noisy surroundings. Clinically, this type of acoustic trauma is observed in industrial workers who have been exposed to excessive noise for several years. It appears to be in keeping with the natural history of wear and tear. If the intensity of the noise is high enough and a person is exposed to it long enough, some deleterious effect on the organ of Corti must result. The degree of damage, however

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