Purpose: To compare preterm and term neonates in relation to the presence and amplitude of Distortion Product Otoacoustic Emissions (DPOAEs), as well as to characterize them regarding risk indicators for hearing loss. Methods: Study realized by the analysis of the DPOAEs (frequencies of 2000, 3000, 4000, 6000 and 8000 Hz) and risk indicators for hearing loss. The neonates were grouped according to the gestational age. The results were analyzed by ANOVA, Kruskal-Wallis and Chi--square tests (5%). Results: The sample consisted of 109 neonates (218 ears) in homogenous distribution related to gender and preterm/term classification. A high risk for hearing loss was observed in 40.4% of the infants. From the risk indicators for hearing loss, the most common were the duration of the stay in incubators and intensive care units (ICU) longer than five days. The DPOAEs were present in 209 ears (95.9%). The absence of responses to DPOEAs was significantly more frequent in groups with lower gestational age. It was observed an increase of the amplitudes of the DPOEAs with the increase of the gestational age, except for the frequency of 8000 Hz in the left ear. There were no differences between ears and genders regarding the presence and amplitude of the DPOAEs. Conclusion: There are differences between preterm and term groups in relation to the presence and amplitude of the DPOAEs: higher probability of failure in the groups with lower gestational age and (nonlinear) increase of the amplitudes with the increase of the gestational age. The findings suggest the phenomenon of maturation of the peripheral auditory system. Keywords: Hearing; Neonatal screening; Infant, premature; Hair cells, auditory; Hearing disorders; Early diagnosis; Diagnostic techniques, otological; Speech, language and hearing sciences RESUMO Objetivo: Comparar neonatos prematuros e a termo quanto à presença e amplitude das Emissões Otoacústicas Produto de Distorção (EOAPD), bem como caracterizá-los em relação aos indicadores de risco para perda auditiva. Métodos: Estudo realizado por análise das EOAPD (frequên-cias de 2000, 3000, 4000, 6000 e 8000 Hz) e dos indicadores de risco para perda auditiva. Os neonatos foram agrupados segundo a idade gestacional. Os resultados foram analisados empregando-se testes ANOVA, Kruskal-Wallis e Qui-quadrado (5%). Resultados: A amostra constituiu--se de 109 neonatos (218 orelhas), com distribuição homogênea quanto ao gênero e a classificação a termo/pré-termo. Foi observado alto risco para perda auditiva em 40,4% dos lactentes. Dos indicadores de risco para deficiência auditiva, os mais frequentes foram a permanência em incubadora e internação em UTI superiores a cinco dias. As EOAPD mostraram-se presentes em 209 orelhas (95,9%). A ausência de respostas às EOAPD foi significativamente mais recorrente nos grupos com menor idade gestacional. Verificou-se aumento das amplitudes das EOAPD de acordo com o aumento da idade gestacional, exceto para a frequência de 8000 Hz na orelha esquerda. Não foi observada diferença ent...
RESUMO Objetivo: verificar os efeitos do exercício de pressão de língua contra a papila incisiva, realizado de forma isolada e associada ao treino funcional da deglutição, na atividade elétrica da musculatura supra-hioidea e na autopercepção da mudança estética na região submandibular. Métodos: estudo experimental, analítico e prospectivo, realizado com 27 mulheres entre 30 e 78 anos, divididas em dois grupos de tratamento (G1 e G2) e um grupo controle (GC). Os indivíduos foram submetidos a oito semanas de treinamento, sendo que o G1 realizou somente o exercício pressão de língua contra a papila incisiva, o G2 realizou o mesmo exercício associado ao treino da deglutição e o GC não foi submetido a qualquer intervenção. A atividade elétrica da musculatura supra-hioidea foi obtida por meio da eletromiografia de superfície no início e ao final do estudo, quando também foi aplicado um questionário de autopercepção dos possíveis resultados estéticos obtidos. Foram utilizados os testes Qui-quadrado de Pearson, Exato de Fisher, Mann Whitney, Kruskal Wallis e Wilcoxon, com nível de significância de 5%. Resultados: foram encontradas diferenças estatisticamente significativas na atividade elétrica entre os valores inicial e final tanto no G1 quanto no G2, fato não observado no GC. Não houve diferença significativa entre os grupos em relação à autopercepção da melhora visual e da melhora muscular. Conclusão: as duas estratégias analisadas mostraram-se igualmente eficazes para promover o maior recrutamento da musculatura supra-hioidea, porém, sem impacto na autopercepção da mudança estética na região submandibular.
The outcome of power reflectance tests at 2000Hz and 3000Hz showed a correlation with tympanometry and otoacoustic emissions, and these were the most appropriate frequencies to determine middle ear disease through power reflectance measurement. It was also observed that values of power reflectance above reference levels suggested the presence of fluid in the middle ear, and thus a conductive hearing loss.
Purpose: to verify the effects of tongue pressure exercises against the incisive papilla, used both alone and in combination with functional swallowing training, on the electrical activity of the suprahyoid muscles and the self-perception of aesthetic changes in the submandibular region. Chi-square, Fisher’s exact, Mann-Whitney, Kruskal Wallis, and Wilcoxon tests were used. The significance level was set at 5%. Methods: an experimental, analytical, prospective study on 27 women, aged 30 to 78 years, divided into two treatment groups (G1 and G2), and a control group (CG). Individuals were submitted to 8 weeks of training, in which G1 performed only tongue pressure exercises against the incisive papilla, and G2 performed the same exercises in combination with swallowing training, while CG was not submitted to any intervention. The suprahyoid muscle electrical activity was obtained with surface electromyography at the beginning and end of the study when subjects also answered a self-perception questionnaire on possible aesthetic results. Pearson’s chi-square, Fisher’s exact, Mann-Whitney, Kruskal Wallis, and Wilcoxon tests were used. The significance level was set at 5%. Results: statistically significant differences were found between the initial and final electrical activity in both G1 and G2, which was not found in CG. There was no significant difference between the groups regarding their self-perception of visual or muscle improvements. Conclusion: both strategies analyzed were equally effective to increase suprahyoid muscle recruitment, though with no impact on the self-perception of aesthetic changes in the submandibular region.
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