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  • 1
    Online Resource
    Online Resource
    Monitoramento eletrofisiológico do sistema auditivo central em crianças nascidas pequenas para a idade gestacional
    FapUNIFESP (SciELO) ; 2020
    In:  Audiology - Communication Research Vol. 25 ( 2020)
    Details
    In: Audiology - Communication Research, FapUNIFESP (SciELO), Vol. 25 ( 2020)
    Abstract: ABSTRACT Purpose To follow up the central auditory system of children born small for gestational age, through electrophysiological evaluation of hearing, in order to verify the occurrence of possible neural dysfunctions in this system. Methods A longitudinal study was carried out with 23 children divided into four groups: Term-born group, subdivided into small for gestational age (four children) and four children born with appropriate weight for gestational age, whose age at the end of the research was three years old. Preterm group subdivided into small for gestational age (seven children), and appropriate for gestational age (eight children), whose corrected age, at the end of the research was three years old. All children were subjected to assessment of auditory brainstem auditory evoked potentials at birth, at six months and at three years of age, and Long-Latency Auditory Evoked Potential at three years. Results children born at term and small for gestational age had a higher occurrence of hearing alterations in relation to the other groups, with increased latency of waves III and V and interpeaks I-III and I-V. All children presented normal evaluation in the Long-Latency Auditory Evoked Potential. Conclusion Children born term and small for gestational age present dysfunctions in neural conduction in the brainstem and should be considered at risk for alterations in the development of the auditory skills that are necessary to guarantee quality of acoustic information processing.
    Type of Medium: Online Resource
    ISSN: 2317-6431
    URL: Article
    DOI: 10.1590/2317-6431-2019-2251
    Language: Portuguese
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2020
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  • 2
    Online Resource
    Online Resource
    Longitudinal electrophysiological study of auditory pathway in small for gestational age infants
    FapUNIFESP (SciELO) ; 2014
    In:  CoDAS Vol. 26, No. 4 ( 2014-07), p. 294-301
    Details
    In: CoDAS, FapUNIFESP (SciELO), Vol. 26, No. 4 ( 2014-07), p. 294-301
    Abstract: OBJETIVO: Acompanhar a maturação da via auditiva de lactentes nascidos a termo pequenos para a idade gestacional, por meio do estudo das latências absolutas e interpicos do Potencial Evocado Auditivo de Tronco Encefálico (PEATE) nos primeiros seis meses de vida.MÉTODOS: Estudo multicêntrico prospectivo longitudinal. PEATE realizado no período neonatal em 96 recém-nascidos, 49 pequenos para a idade gestacional (PIG) e 47 adequados para a idade gestacional (AIG). Destes, 77 lactentes (39 PIG e 38 AIG) retornaram para a segunda avaliação. Na terceira avaliação, retornaram 70 lactentes (35 PIG e 35 AIG).RESULTADOS: PIG e AIG não apresentaram diferenças significativas no período neonatal e aos três meses de vida. Aos seis meses, houve diferença estatística entre os grupos PIG e AIG para a onda III e interpico I-III. Latências das ondas do PEATE diminuíram mais rapidamente nos primeiros três meses que do terceiro para o sexto mês de vida para o grupo PIG. O grupo AIG mostrou diminuição progressiva da latência das ondas do PEATE durante os seis meses.CONCLUSÃO: Os resultados sugerem que a maturação da via auditiva nos PIG ocorre em ritmo diferente quando comparada aos AIG. Os PIG têm maturação mais rápida, especialmente nos três primeiros meses de vida; nas crianças AIG, esse processo ocorreu de modo constante e gradual ao longo dos seis meses estudados.
    Type of Medium: Online Resource
    ISSN: 2317-1782
    URL: Article
    DOI: 10.1590/2317-1782/201420140042
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2014
    detail.hit.zdb_id: 3070303-7
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  • 3
    Online Resource
    Online Resource
    Auditory pathway maturational study in small for gestational age preterm infants
    FapUNIFESP (SciELO) ; 2014
    In:  CoDAS Vol. 26, No. 4 ( 2014-07), p. 286-293
    Details
    In: CoDAS, FapUNIFESP (SciELO), Vol. 26, No. 4 ( 2014-07), p. 286-293
    Abstract: OBJETIVO: Acompanhar a maturação da via auditiva em recém-nascidos prematuros pequenos para a idade gestacional (PIG), por meio do estudo das latências absolutas e interpicos do potencial evocado auditivo de tronco encefálico (PEATE) nos primeiros seis meses de idade.MÉTODOS: Estudo transversal e longitudinal prospectivo multicêntrico, que avaliou 76 recém-nascidos, 35 PIG e 41 adequados para a idade gestacional (AIG), nascidos entre 27 e 36 semanas de gestação na primeira avaliação. O PEATE foi realizado em três momentos (período neonatal, três meses e seis meses). Retornaram para a segunda avaliação 29 PIG e 33 AIG (62 lactentes), entre 51 e 54 semanas (idade corrigida). Na terceira, retornaram 49 lactentes (23 PIG e 26 AIG), com faixa etária de 63 a 65 semanas (idade corrigida). Foi critério de inclusão a presença bilateral de emissões otoacústicas evocadas por estímulo transiente e curva timpanométrica normal.RESULTADOS: Verificou-se simetria interaural nos dois grupos. A comparação entre os dois grupos ao longo dos três períodos estudados não mostrou diferenças relevantes nos parâmetros do PEATE, exceto para as latências da onda III no período entre os três e seis meses. Quanto ao processo maturacional com tone burst 0,5 e 1 kHz, verificou-se que os grupos não se diferenciaram.CONCLUSÃO: Os resultados sugerem que, nos prematuros, o processo de maturação da via auditiva ocorre em tempo similar em PIG e AIG. Também sugerem que a prematuridade é um fator de maior relevância para a maturação da via auditiva que o fator peso ao nascer.
    Type of Medium: Online Resource
    ISSN: 2317-1782
    URL: Article
    DOI: 10.1590/2317-1782/201420130078
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2014
    detail.hit.zdb_id: 3070303-7
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  • 4
    Online Resource
    Online Resource
    A influência da proporcionalidade corporal em crianças nascidas pequenas para a idade gestacional: estudo da maturação da via auditiva
    FapUNIFESP (SciELO) ; 2015
    In:  Audiology - Communication Research Vol. 20, No. 1 ( 2015-03), p. 32-39
    Details
    In: Audiology - Communication Research, FapUNIFESP (SciELO), Vol. 20, No. 1 ( 2015-03), p. 32-39
    Abstract: Purpose To monitor the auditory pathway maturation of infants born small for gestational age (SGA), according to body proportionality, in the first six months of life. Methods Brainstem auditory-evoked potential (BAEP) was performed during the neonatal period and at six months of life in 59 infants born small for gestational age; among them, 35 were born asymmetrical (SGA-A), and 24 were born symmetrical (SGA-S). The results were compared to those of 59 infants considered appropriate for gestational age (AGA). Results The term and pre-term SGA-A and SGA-S infants showed a significant auditory maturation process (progressive decrease of BAEP latencies) from the neonatal period to six months of life. A similar result was observed with the AGA infants. The term and pre-term AGA infants and the SGA-S and SGA-A infants did not differ from each other from an auditory perspective during the six-month period. Conclusion The SGA infants with symmetrical and asymmetrical patterns showed auditory maturation, suggesting that the duration of intrauterine injury did not represent a greater risk to hearing.
    Type of Medium: Online Resource
    ISSN: 2317-6431
    URL: Article
    DOI: 10.1590/S2317-64312015000100001524
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2015
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  • 5
    Online Resource
    Online Resource
    Caracterização eletrofisiológica da audição em prematuros nascidos pequenos para a idade gestacional
    FapUNIFESP (SciELO) ; 2013
    In:  CoDAS Vol. 25, No. 1 ( 2013), p. 22-28
    Details
    In: CoDAS, FapUNIFESP (SciELO), Vol. 25, No. 1 ( 2013), p. 22-28
    Abstract: PURPOSE: To characterize the Auditory Brainstem Response (ABR) of small for gestational age preterm newborns and to compare the findings to those of appropriate for gestational age premature newborns in order to verify whether the small for gestational age condition is a risk factor for hearing loss. METHODS: This prospective cross-sectional multicenter study evaluated 72 preterm newborns of both genders (35 small and 37 appropriate for gestational age), who were born at 30 to 36 weeks of gestational age and were evaluated before hospital discharge. Only newborns with present transient evoked otoacoustic emissions and tympanometry type A were included. The ABR was performed with click stimuli. The quantitative data analysis was performed using mean and standard deviation measures for each group. For qualitative analysis, the ABR results were classified as normal or altered according to the absolute latencies of waves I, III, V and interpeaks I-III, III-V, I-V. The analysis was carried out considering the age of the newborn at the time of examination. RESULTS: Alterations were evident in 32 newborns (44.44%), being 15 small (43%) and 17 appropriate for gestational age (46%), with no between-groups difference. Of the 15 small for gestational age newborns with altered ABR, six presented as auditory risk only the small for gestational age condition. In the group of adequate for gestational age newborns, there was a higher occurrence of alteration in males. CONCLUSION: There was no difference in responses of auditory evoked potential between small and appropriate for gestational age preterm newborns. Therefore, the condition does not behave as a risk factor for retrocochlear impairment.
    Type of Medium: Online Resource
    ISSN: 2317-1782
    URL: Article
    DOI: 10.1590/S2317-17822013000100005
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2013
    detail.hit.zdb_id: 3070303-7
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    Online Resource
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