Wideband acoustic absorbance in children with Down syndrome

Durante, Alessandra Spada; Santos, Mayara; Roque, Nayara Michelle Costa de Freitas; Gameiro, Marcella; Almeida, Kátia de; Neto, Osmar Mesquita de Sousa

doi:10.1016/j.bjorl.2017.12.006

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…There were 107 separate frequencies on the absorbance curve, spanning from 226 to 8000 Hz. For this study, 17 frequencies were chosen at random, based on results from other research [22][23][24][25]. These frequencies were 226, 257, 324, 408, 500, 630, 794, 1000, 1260, 1587, 2000, 2520, 3175, 4000, 5040, 6350, and 8000 Hz.…”

Section: Wideband Tympanometry (Ambient and Peak Pressure)mentioning

confidence: 99%

Wideband Tympanometry and Pressurized Otoacoustic Emissions in Children with Surgical Excision of Palatine and/or Pharyngeal Tonsils

Sanches,

Sanfins,

Skarzynski

et al. 2024

Brain Sciences

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Palatine and pharyngeal tonsil hypertrophy may lead to dysfunction of the auditory tube due to a propensity for infection, potentially giving rise to otitis media. This is a quantitative and longitudinal study, developed from 2019 to 2021, at the State University of Campinas (UNICAMP). The studied sample comprised 15 participants aged 5 to 12 years (mean 7.9 years), 12 male and 3 female, arranged into two groups: children diagnosed with pharyngeal and/or palatine tonsil hypertrophy who were candidates for surgery (G1), and children who were later evaluated after surgery (G2). As part of the test, an otoscopy and measurements of logoaudiometry, pure-tone threshold audiometry, wideband tympanometry (ambient and peak pressure), and otoacoustic emissions (TEOAEs and DPOAEs, both at ambient and peak pressure) were all performed. There were statistically significant differences between phases in pure-tone audiometry, in terms of 226 Hz tympanometry, wideband tympanometry in peak pressure conditions, in the amplitude measurement TEOAEs in both pressure conditions, in DPOAEs in ambient pressure conditions, and in the signal/noise measurement in both pressures in DPOAEs. Overall, it was found that hearing tests were different for subjects with palatine and pharyngeal tonsil hypertrophy compared to the post-surgical group.

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Section: Wideband Tympanometry (Ambient and Peak Pressure)mentioning

confidence: 99%

Wideband Tympanometry and Pressurized Otoacoustic Emissions in Children with Surgical Excision of Palatine and/or Pharyngeal Tonsils

Sanches,

Sanfins,

Skarzynski

et al. 2024

Brain Sciences

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show abstract

“…6 Both measurements have shown utility as diagnostic tools and can be readily measured across a broad range of frequencies using wideband stimuli. [7][8][9][10][11] Compared with traditional tympanometry, absorbance or reflectance measurements provide much more information on the state of the middle ear and allow more comprehensive assessment of middle-ear disorders. 12,13 Many studies have shown reduced absorbance, or increased reflectance, in otosclerotic ears, [14][15][16][17][18][19] particularly in the low frequency band.…”

Section: Introductionmentioning

confidence: 99%

Wideband Acoustic Absorbance in Otosclerosis: Does Stapedotomy Restore Normal Tympanic Cavity Function?*

Durante

Nascimento

Almeida

et al. 2022

Int Arch Otorhinolaryngol

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Introduction Otosclerosis is characterized by the fixation of the stapes to the oval window, thereby impairing acoustic signal absorbance. A commonly used surgical technique for improving hearing in cases of otosclerosis is stapedotomy. However, it is unclear whether this surgery restores all the physical characteristics of the tympano-ossicular system. Objective To evaluate the tympano-ossicular system in individuals with fenestral otosclerosis pre and poststapedotomy using wideband tympanometry. Method A total of 47 individuals and 71 ears were assessed. The subjects were divided into three groups: presurgery otosclerosis; postsurgery; and a control group of normal-hearing adults. A handheld tympanometer with a wideband module (226–8,000 Hz) was used to take measurements at ambient pressure and under pressurized conditions. The level of statistical significance adopted was p ≤ 0.05. Results Acoustic absorbance at 226 Hz was low for all groups. At frequencies in the range 630 to 5,040 Hz, each group had a characteristic absorbance curve, allowing them to be distinguished from one another. In the presurgery group, absorbance values were below normal levels, with energy absorbance below 10%. Low energy absorbance was most evident at 1,000 Hz in the presurgery group, but this was not observed in the postsurgery group. Although there was an improvement in hearing, the surgery failed to restore the tympano-ossicular system to normal. Conclusion Wideband acoustic absorbance proved able to differentiate normal ears and otosclerotic ears pre and postsurgery, under both ambient pressure and pressurized conditions.

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“…Estes resultados demostram que mesmo em indivíduos que tem a síndrome com exame normal nas EOAT a absorvância de energia pela orelha média estava diminuída, provavelmente devido as características anatômicas, funcionais e de impedância do sistema auditivo desses sujeitos, para as quais o exame de absorvância acústica demonstrou ser sensível. Nestes achados e também em outras pesquisas desenvolvidas o teste demonstrou ser capaz de captar alterações na orelha média, com diminuição da absorvância, em faixas de frequência próximas ao presente estudo (28,29).…”

Section: Absorvância Acústica De Banda Largaunclassified

Absorvância acústica de banda larga e emissões otoacústicas pressurizadas em crianças e adolescentes com síndrome de Down

Boldrin¹

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A ata de defesa com as respectivas assinaturas dos membros encontra-se no SIGA/Sistema de Fluxo de Dissertação/Tese e na Secretaria do Programa da FCM. Data deDefesa: 30/01/2020 DEDICATÓRIA A minha família, em especial a minha irmã Thais (in memorian), que sempre foi a minha inspiração e motivo de escolha pela fonoaudiologia. Gratidão e amor eterno por você e por tudo que representa na vida da nossa família. AGRADECIMENTOS Á Deus e Nossa Senhora Aparecida, por serem meu alicerce e fonte de apoio e força nos momentos difíceis. Aos meus pais, José e Luzia, por sempre me apoiarem nos meus sonhos e objetivos. Vocês são o que tenho de mais importante na vida. Gratidão por todo o amor e dedicação. À minha orientadora, Profa. Dra. Maria Francisca, por toda a orientação, disponibilidade, conhecimento e paciência nesta jornada da pós-graduação. Gratidão por sempre acolher minhas dúvidas com paciência e atenção, me apontando o melhor caminho a seguir no desenvolvimento deste trabalho. Ao meu noivo, Matheus, por acompanhar cada passo da minha vida e me apoiar sempre. Tenho muita sorte de tê-lo como companheiro. Obrigada por me acolher e ouvir nos momentos nos quais nada parecia dar certo. Aos meus tios Landa, Luiz, Mauro e Yara e aos meus primos João Victor e Arthur, por todo amor, carinho e apoio que recebo de vocês. À fonoaudióloga Thais Antonelli Diniz Hein, por toda a disponibilidade e generosidade de compartilhar seu conhecimento. Você foi essencial neste percurso, desde a escolha deste caminho a finalização deste sonho. Aos meus amigos de infância Marinara, Jeferson, Joelma, Alex, Grasiely e Graziela, por compartilharem das minhas tristezas e alegrias. Obrigada por estarem e serem presentes em todos os momentos da minha vida.Aos meus amigos de fé do grupo de jovens Main,

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Wideband acoustic absorbance in children with Down syndrome

Abstract: The low energy absorption in the presence of normal tympanograms in children with Down syndrome may suggest middle ear abnormalities.

Cited by 5 publications

References 25 publications

Wideband Tympanometry and Pressurized Otoacoustic Emissions in Children with Surgical Excision of Palatine and/or Pharyngeal Tonsils

Wideband Tympanometry and Pressurized Otoacoustic Emissions in Children with Surgical Excision of Palatine and/or Pharyngeal Tonsils

Wideband Acoustic Absorbance in Otosclerosis: Does Stapedotomy Restore Normal Tympanic Cavity Function?*

Absorvância acústica de banda larga e emissões otoacústicas pressurizadas em crianças e adolescentes com síndrome de Down

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