Late Auditory evoked potentials in individuals with tinnitus. 2010

Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
Speech and Hearing Therapy Program - Department of Physical Therapy, Speech and Hearing Therapy and Occupational Therapy of the Medical School of the University of São Paulo - FMUSP. valdetev@hotmail.com

Long latency auditory evoked potentials (LLAEP) alterations in individuals with tinnitus are suggestive of dysfunction in the central auditory pathways at a cortical level. OBJECTIVE To characterize the LLAEP in individuals with and without tinnitus exposed to occupational noise. METHODS Cross-sectional contemporary cohort, prospective study. Sixty subjects exposed to occupational noise, ranging in age from 29 to 50 years underwent LLAEP assessment; 30 of them had tinnitus complaint and 30 did not have tinnitus. RESULTS We observed significant statistical difference regarding the mean values of latencies of waves N1 (p<0.001), P2 (p=0.002) and P300 (p=0.039) when we compared individuals with and without tinnitus. In individuals with tinnitus we also noticed a greater number of altered results concerning components N1 (60%) and P2 (66.7%), although only component P2 presented significant statistical difference (p=0.010). For the LLAEP, the latency increase was the only type of alteration found (p=1.000). We found a greater association between bilateral tinnitus and bilateral alteration for all components N1(73%), P2(73%) and P300(50%). CONCLUSIONS It is relevant to study LLAEP in individuals with tinnitus exposed to high occupational sound pressure levels.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009623 Noise, Occupational Noise present in occupational, industrial, and factory situations. Occupational Noise,Noises, Occupational,Occupational Noises
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D003430 Cross-Sectional Studies Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time. Disease Frequency Surveys,Prevalence Studies,Analysis, Cross-Sectional,Cross Sectional Analysis,Cross-Sectional Survey,Surveys, Disease Frequency,Analyses, Cross Sectional,Analyses, Cross-Sectional,Analysis, Cross Sectional,Cross Sectional Analyses,Cross Sectional Studies,Cross Sectional Survey,Cross-Sectional Analyses,Cross-Sectional Analysis,Cross-Sectional Study,Cross-Sectional Surveys,Disease Frequency Survey,Prevalence Study,Studies, Cross-Sectional,Studies, Prevalence,Study, Cross-Sectional,Study, Prevalence,Survey, Cross-Sectional,Survey, Disease Frequency,Surveys, Cross-Sectional
D005072 Evoked Potentials, Auditory The electric response evoked in the CEREBRAL CORTEX by ACOUSTIC STIMULATION or stimulation of the AUDITORY PATHWAYS. Auditory Evoked Potentials,Auditory Evoked Response,Auditory Evoked Potential,Auditory Evoked Responses,Evoked Potential, Auditory,Evoked Response, Auditory,Evoked Responses, Auditory,Potentials, Auditory Evoked
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014012 Tinnitus A nonspecific symptom of hearing disorder characterized by the sensation of buzzing, ringing, clicking, pulsations, and other noises in the ear. Objective tinnitus refers to noises generated from within the ear or adjacent structures that can be heard by other individuals. The term subjective tinnitus is used when the sound is audible only to the affected individual. Tinnitus may occur as a manifestation of COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; INTRACRANIAL HYPERTENSION; CRANIOCEREBRAL TRAUMA; and other conditions. Pulsatile Tinnitus,Ringing-Buzzing-Tinnitus,Spontaneous Oto-Acoustic Emission Tinnitus,Tensor Palatini Induced Tinnitus,Tensor Tympani Induced Tinnitus,Tinnitus of Vascular Origin,Tinnitus, Clicking,Tinnitus, Leudet,Tinnitus, Leudet's,Tinnitus, Noise Induced,Tinnitus, Objective,Tinnitus, Spontaneous Oto-Acoustic Emission,Tinnitus, Subjective,Tinnitus, Tensor Palatini Induced,Tinnitus, Tensor Tympani Induced,Vascular Origin Tinnitus,Clicking Tinnitus,Induced Tinnitus, Noise,Leudet Tinnitus,Leudet's Tinnitus,Noise Induced Tinnitus,Objective Tinnitus,Ringing Buzzing Tinnitus,Spontaneous Oto Acoustic Emission Tinnitus,Subjective Tinnitus,Tinnitus, Leudets,Tinnitus, Pulsatile,Tinnitus, Spontaneous Oto Acoustic Emission,Tinnitus, Vascular Origin

Related Publications

Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
January 2022, Brazilian journal of otorhinolaryngology,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
August 2013, Hearing research,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
June 2007, Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
December 2007, Journal of the Formosan Medical Association = Taiwan yi zhi,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
July 2019, Brain research,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
April 1989, Archives internationales de physiologie et de biochimie,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
April 1995, Archives of physiology and biochemistry,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
January 1991, Revue neurologique,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
October 1983, Electroencephalography and clinical neurophysiology,
Valdete Alves Valentins dos Santos Filha, and Carla Gentile Matas
January 2009, Brazilian journal of otorhinolaryngology,
Copied contents to your clipboard!