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Impulse noise trauma: a study of histological susceptibility.

Authors
Hamernik-RP; Henderson-D
Source
Arch Otolaryngol 1974 Feb; 99(2):118-121
NIOSHTIC No.
00036690
Abstract
The integrity of the organ of Corti after exposure to high intensity impulse noise was studied using the chinchilla and guinea-pig. Animals were exposed to three levels of impulses. Evoked-response audiometry and the surface preparation techniques were used to obtain both audiometric and histologic data from one half hour to 50 days after exposure. The data indicate that lower (155-decibel peak sound pressure level) intensities are potentially more hazardous to the hair cell population than the higher intensities and that there exists a critical intensity and duration above which individual susceptibility precludes any confident histological comparison across animals. Failure of the conductive mechanism is presumed to be responsible for this large histological variability.
Keywords
NIOSH-Publication; NIOSH-Grant; Histopathology; Sound-levels; Hearing-disorders; Ear-disorders; Temporary-threshold-shifts; Audiometric-testing
Contact
Otolaryngology Upstate Medical Center Departm 750 E Adams Street Syracuse, N Y 13210
CODEN
AROTAA
Publication Date
19740201
Document Type
Journal Article
Funding Amount
651569
Funding Type
Grant
Fiscal Year
1974
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-00364
Issue of Publication
2
ISSN
0003-9977
Priority Area
Noise-induced-hearing-loss
Source Name
Archives of Otolaryngology
State
NY
Performing Organization
Upstate Medical Center, Syracuse, New York
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