Study of the central auditive pathway by encephalic trunk evoked e auditory responses (ear) in children with language retard

• Autores: Gallardo, Manuel, Vera, Carlos
• Formato: artículo
• Fecha de Publicación: 2003
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/1417
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/anales/article/view/1417
• Nivel de acceso: acceso abierto
• Materia: Trastornos del desarrollo del lenguaje; potenciales evocados auditivos del tronco cerebral; conductos auditivos.; Language development disorders; evoked potentials; auditory; brain stem; auditory pathways.

Objetive: To determine the functional integrity of the brainstem auditory pathway by the auditive brainstem response (ABR) in language-retarded children without pathology in both the middle ear and central nervous system and no neonatal hearing loss risk factors. Design: Retrospective transversal study. Setting: Naval Medical Center and Air Force Central Hospital Otorhinolaryngology Services, Lima. Peru. Material and methods: Analysis of children’s ABR performed in the last ten years included 48 children, 28 males and 20 females, 1 to 11 year-old. Main outcome measures were both latency time and morphology of waves I, II, III, IV, and V. Results: Latencies were normal at any age. Morphological distortion and/ or wave hypovoltage were found in 77% of the patients, more frequently (58%) in waves I and II that correspond to the auditory nerve and brainstem cochlear nuclei. Conclusions: The results suggest a disturbance in the neural synchronization of the auditory pathway and the brainstem nuclei in 77% of the patients studied, that would affect the central auditory processing.