Occasional finding of neurological disorders during children hearing loss evaluation using the ABR.
One of the most important applications of the Brainstem evoked response audiometry (ABR) is in the evaluation of hearing loss in children. Today the ABR is also indicated in the screening of cochleo-vestibular syndromes to detect retrocochlear lesions, to monitor patients in a coma (brain death), in monitoring the brainstem during skull base surgery, etc. Among the many BERA qualities, is its capacity to evaluate the neurophysiologic integrity of the auditory brainstem pathway. In doing so, sometimes while evaluating hearing function in children we are faced with ABR waves that suggest the presence of retrocochlear lesions (trace asymmetry, increased interpeak intervals), many times confirmed through image studies. These cases are seen as occasional findings of neurologic disorders during children hearing loss evaluation. In this study we report 2 cases of neurologic disorders diagnosed with the use of the ABR to evaluate hearing loss in children.
Alves de Sousa
Luiz Carlos
LC
Department of Surgery, Medical School of Ribeirão Preto, University of São Paulo. lcarlos@clinicapaparella.com.br
Rodrigues
Luciano da Silveira
Lda S
Piza
Marcelo Ribeiro de Toledo
MR
Ferreira
Denise Rezende
DR
Ruiz
Danielle Barbosa
DB
D016080:Arachnoid Cysts / Q000150:complications / Q000175:diagnosis*; D001300:Audiometry, Evoked Response / Q000379:methods; D003638:Deafness / Q000175:diagnosis* / Q000209:etiology; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000150:complications / Q000175:diagnosis*; D007223:Infant; D014057:Tomography, X-Ray Computed