68. Brainstem auditory evoked potentials in children 2–5 years of age with language delays

Abstract

Introduction Language delay (LD) is a common problem in childhood, the auditory brainstem potentials (ABP) are necessary for early diagnosis. Objetive To describe the abnormalities in auditory brainstem potentials in children 2–5 years with LD. Methodology Transversal study, 50 children, 2–5 years of age, with LD, no history of neurological illness, underwent ABP, evaluating morphology (V/I), absolute latencies of waves I, III and V; interpeak latencies I–III, III–V and I–V, expressed in milliseconds (ms) and hearing threshold expressed in decibels (dB). Results We included 50 patients, 66% boys and 34% girls. In 90% of the ABP there was a reversal V/I ratio. Absolute latencies, conduction intervals and the hearing threshold were normal in all cases. Conclusion The altered morphology of ABP (inversion of the relationship V/I) was related with dysfunction of the inferior colliculus (generator V wave), so it is proposed to complement the evaluation with middle latency responses and logo-audiometry. Significance Early diagnosis and intervention in the management of these children is important to enhance language maturation.