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1.
Rev. méd. Minas Gerais ; 30: e-3007, 2020.
Article in Portuguese | LILACS | ID: biblio-1117837

ABSTRACT

Introdução: A associação entre perda auditiva e Diabetes Mellitus tipo 1 (DM1) é ainda pouco estudada. A perda auditiva é uma das complicações crônicas relacionadas ao grau de controle glicêmico, que os pacientes podem apresentar com a progressão da doença. Objetivo: Investigar o comprometimento auditivo por meio das emissões otoacústicas transitórias (EOAT) por banda de frequência em adolescentes com DM1 e relação com o controle glicêmico. Métodos: Foram incluídos 80 adolescentes, 50% do gênero masculino, entre 10 e 19 anos de idade: 40 com DM1 e 40 controles saudáveis, pareados por gênero e idade. Os dados clínicos e laboratoriais foram pesquisados nos prontuários médicos. O controle glicêmico foi avaliado por meio dos exames de hemoglobina glicada e os pacientes com DM1 analisados de acordo com o controle glicêmico. A avaliação auditiva foi realizada por meio da imitanciometria, audiometria, e posteriormente EOAT, em sala tratada acusticamente, pelo protocolo "TE Test" de clique não-linear (1 KHz a 4 kHz) a 80 dB NPS de intensidade (AuDX - Biologic). Resultados: As respostas às EOAT foram ausentes em 5,12% em pacientes com DM1, com diferença significativa em relação aos controles (p=0,04). A análise das EOAT por bandas de frequência mostrou maior proporção de alteração nos adolescentes com DM1 mal controlados quando comparados aos bem controlados, nas frequências de 1000Hz, 2000Hz e 3000Hz (p<0,05). Conclusão: As EOAT por bandas de frequência permitiram a identificação precoce de comprometimento auditivo em adolescentes com DM1 e mostraram associação entre DM1 mal controlado e perda auditiva. (AU)


Introduction: The association between hearing loss and type 1 diabetes mellitus (DM1) is still poorly studied. Hearing loss is one of the chronic complications related to the degree of glycemic control that patients may present with the progression of the disease. Objective: To investigate auditory impairment through transient otoacoustic emissions (TEOAE) by frequency band in adolescents with DM1 and in relation to glycemic control. Methods: Were included 80 adolescents, 50% males, between 10 and 19 years of age: 40 with DM1 and 40 healthy controls, matched by gender and age. Clinical and laboratory data were taken from the medical records. Glycemic control was evalueted by glycated hemoglobin and the patients with DM1 were analyzed according to glycemic control. To the auditory evaluation were used the immittance and audiometry, and the TEOAE. The test was performed in the acoustically treated room, the non-linear TE test protocol (1 KHz to 4 kHz) at 80 dB SPL (AuDX - Biologic ). Results: TEOAE responses were absent in 5.12% of patients with DM1, with a significant difference in relation to controls (p = 0.04). The analysis of TEOAE by frequency bands showed a higher proportion of alteration in adolescents with DM1 poorly controlled when compared to well controlled ones, in the frequencies of 1000Hz, 2000Hz and 3000Hz (p <0.05). Conclusion: TEOAE by frequency bands allowed the early identification of auditory impairment in adolescents with DM1 and showed an association between poorly controlled DM1 and hearing loss. (AU)


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Young Adult , Acoustic Stimulation/methods , Diabetes Mellitus, Type 1/physiopathology , Blood Glucose/metabolism , Case-Control Studies , Cross-Sectional Studies , Cochlea , Diabetes Mellitus, Type 1/complications , Hearing Loss/etiology , Hearing Tests/methods
2.
Int J Audiol ; 53(6): 402-8, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24564623

ABSTRACT

OBJECTIVE: To evaluate the hearing of adolescents with diabetes mellitus type 1(DM1) by otoacoustic emissions (OAEs), and by comparing different tests with pure-tone audiometry to identify potential early cochlear impairments. DESIGN: Pure-tone audiometry, transient evoked otoacoustic emissions (TEOAEs), and distortion product otoacoustic emissions (DPOAEs) were performed in a group of adolescents with and without DM1. Clinical characteristics, disease duration, and glycated haemoglobin levels were studied. STUDY SAMPLE: Participants were 40 adolescents with DM1 and 40 healthy subjects. RESULTS: Sensorineural hearing loss, affecting frequencies of 6000 and 8000 Hz, was found only in DM1 subjects when compared to the controls (7.7% vs. 0%, p < 0.05). A higher prevalence of cochlear damage was detected by DPOAE responses, 32% belonging from the diabetic group, vs. 3.7% in the control group. Absent TEOAE responses were observed in only three individuals, all from the diabetic group (5.1% of the tests performed in the diabetic group). Additionally, hearing thresholds were better in diabetic subjects with good control when compared to ones with regular or poor control (p = 0.00). Hearing thresholds were higher in poorly controlled diabetics when compared to subjects with good (p = 0.000) or regular control (p = 0.006). CONCLUSION: Early evidence of cochlear damage was detected in adolescents with DM1 leading to hearing loss at high frequencies. Abnormal DPOAEs responses were found more frequently than the alterations in TEOAEs and pure-tone audiometry, suggesting that DPOAEs evaluation is the most sensitive and it could be used for monitoring the progression of cochlear damage during the early stages of hearing impairment.


Subject(s)
Cochlea/physiopathology , Cochlear Diseases/epidemiology , Diabetes Mellitus, Type 1/epidemiology , Hearing Loss, Sensorineural/epidemiology , Otoacoustic Emissions, Spontaneous , Adolescent , Age Factors , Audiometry, Pure-Tone , Auditory Threshold , Biomarkers/blood , Blood Glucose/analysis , Brazil/epidemiology , Case-Control Studies , Child , Cochlear Diseases/diagnosis , Cochlear Diseases/physiopathology , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/diagnosis , Disease Progression , Female , Glycated Hemoglobin/analysis , Hearing , Hearing Loss, Sensorineural/diagnosis , Hearing Loss, Sensorineural/physiopathology , Humans , Male , Prevalence , Risk Factors , Young Adult
3.
Braz J Otorhinolaryngol ; 75(1): 51-7, 2009.
Article in English | MEDLINE | ID: mdl-19488560

ABSTRACT

UNLABELLED: Exposure to ototoxic chemical products in the presence or absence of noise can cause irreversible injury to the hearing of workers for a significantly short period of exposure period. AIM: to perform a comparative study, through audiometric tests, in workers exposed to noise only and noise associated with chemical products. MATERIALS AND METHODS: 155 steel workers (18 - 50 years) exposed to noise (group I), and exposed to noise and chemical products (group II) for a period that varies from 3 to 20 years. RESULTS: significant difference in the rate of occupational hearing loss in the right ear between groups I (3.6%) and II (15.5%). A significantly higher rate of occupational hearing loss in group II (18.3%) and I (6%). With respect to the average time of exposure to aggressive agents, group I was exposed by a significantly higher time. Retrospective study. DISCUSSION: The fact that the right ear was more affected in group II is controversial and should be better investigated in the future, since some studies show that the left ear would be more prone to noise-induced hearing loss. CONCLUSION: group II had proportionally a higher rate of hearing loss when compared with group I, even after having been exposed to aggressive agents for a lower average time.


Subject(s)
Hearing Loss, Noise-Induced/diagnosis , Noise, Occupational/adverse effects , Occupational Exposure/adverse effects , Adolescent , Adult , Audiometry , Auditory Threshold , Case-Control Studies , Hearing Loss, Noise-Induced/etiology , Humans , Male , Middle Aged , Noise, Occupational/statistics & numerical data , Occupational Exposure/statistics & numerical data , Prevalence , Time Factors , Young Adult
4.
Rev. bras. otorrinolaringol ; 75(1): 51-57, jan.-fev. 2009. graf, tab
Article in English, Portuguese | LILACS | ID: lil-514833

ABSTRACT

A exposição a produtos químicos ototóxicos na presença ou não do ruído pode provocar danos irreversíveis na audição dos trabalhadores em um período significativamente menor de exposição. Objetivo: Realizar um estudo comparativo, através de exames audiométricos, em trabalhadores expostos somente a ruído e ruído associado a produtos químicos. Métodos: 155 metalúrgicos (18 - 50 anos) expostos a ruído (grupo I) e a ruído e produtos químicos (grupo II) por um período que varia de 3 a 20 anos. Resultados: diferença significativa na proporção de perda auditiva ocupacional da orelha direita entre os grupos I (3,6%) e II (15,5%). Proporção de perda auditiva ocupacional no profissional significativamente maior no grupo II (18,3%) em relação ao grupo I (6%). Com respeito ao tempo médio de exposição aos agentes agressores, o grupo I esteve exposto por tempo significativamente maior. Estudo retrospectivo. Discussão: O fato de ter havido maior comprometimento da orelha direita no grupo II é controverso e merece ser pesquisado futuramente, pois alguns estudos revelam que a orelha esquerda seria mais suscetível à lesão por ruído. Conclusão: O grupo II apresentou proporcionalmente maior prevalência de perda auditiva quando comparado ao grupo I, mesmo tendo estado exposto aos agentes agressores por um menor tempo médio.


Exposure to ototoxic chemical products in the presence or absence of noise can cause irreversible injury to the hearing of workers for a significantly short period of exposure period. Aim: to perform a comparative study, through audiometric tests, in workers exposed to noise only and noise associated with chemical products. Materials and Methods:155 steel workers (18 - 50 years) exposed to noise (group I), and exposed to noise and chemical products (group II) for a period that varies from 3 to 20 years. Results: significant difference in the rate of occupational hearing loss in the right ear between groups I (3.6%) and II (15.5%). A significantly higher rate of occupational hearing loss in group II (18.3%) and I (6%). With respect to the average time of exposure to aggressive agents, group I was exposed by a significantly higher time. Retrospective study. Discussion: The fact that the right ear was more affected in group II is controversial and should be better investigated in the future, since some studies show that the left ear would be more prone to noise-induced hearing loss. Conclusion: group II had proportionally a higher rate of hearing loss when compared with group I, even after having been exposed to aggressive agents for a lower average time.


Subject(s)
Adolescent , Adult , Humans , Male , Middle Aged , Young Adult , Hearing Loss, Noise-Induced/diagnosis , Noise, Occupational/adverse effects , Occupational Exposure/adverse effects , Audiometry , Auditory Threshold , Case-Control Studies , Hearing Loss, Noise-Induced/etiology , Noise, Occupational/statistics & numerical data , Occupational Exposure/statistics & numerical data , Prevalence , Time Factors , Young Adult
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