Sensitivity, specificity and efficiency of speech-evoked ABR

Autor(es)

Rocha-Muniz, Caroline Nunes ^[1] ; Befi-Lopes, Debora Maria ^[1] ; Schochat, Eliane ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sch Med, BR-09500900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: HEARING RESEARCH; v. 317, p. 15-22, NOV 2014.
• Citações Web of Science: 11

Resumo

We determined the sensitivity, specificity and efficiency of speech-evoked Auditory Brainstem Response (ABR) as a diagnostic support for Auditory Processing Disorder (APD) and specific language impairment (SLI). Speech-evoked ABRs were elicited using the five-formant syllable/da/. The waveforms V. A. C, D, E, F. and 0 of all groups were analyzed. The sensitivity and specificity were calculated, and receiver operating characteristic analyses were performed to determine the optimum cut-off. Seventy-five children who were native speakers of Brazilian-Portuguese participated. The participants included 25 children with APD, 25 children with SLI and 25 with typical development. Statistical analysis demonstrated a cut-off for latency values of 6.48, 7.51, 17.82, 22.33, 30.79, 39.54 and 48.00 for V. A, C, D, E, F, and 0 waves, respectively. The A wave exhibited superior balance for the APD group. For the SLI group, the A, D and 0 waves exhibited the best balance. Furthermore, when analyzing the APD and SLI groups separately, better sensitivity values were observed for the SLI group than the APD group. Speech-evoked ABR is a useful test to identify auditory processing disorders and language impairment. Furthermore, this study represented an important step forward in establishing the clinical utility of speech-evoked ABR in Brazilian Portuguese-speaking children. (C) 2014 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 09/18417-0 - Processamento de sinais acústicos de diferentes complexidades em crianças com alteração de percepção da audição ou da linguagem
• Beneficiário: Caroline Nunes Rocha-Muniz
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto