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Original Articles

Self reported hearing difficulties following excision of vestibular schwannoma

, &
Pages 420-430 | Received 11 Jan 2007, Published online: 07 Jul 2009
 

Abstract

A new questionnaire, developed to investigate self-reported hearing difficulties in unilateral deafness, was completed by 221 post-surgical vestibular schwannoma patients. Results were compared to a group of 51 normal hearers and 12 patients with severe unilateral deafness from other causes. The vestibular schwannoma patients rated their post surgical hearing as profoundly deaf in the operated ear, and worse than pre-surgical in the other. Factor analysis of the results revealed a general hearing factor and five factors, indirect listening, direct listening, face-to-face listening, noise and distance, and localization, representing performance in specific listening situations. Two factors, direct listening and face-to-face listening have not been commented upon previously in the literature. No differences were found between the hearing-impaired groups on any of the factors. Both groups gave ratings significantly worse than the normal hearers on all factors, and rated themselves worst on indirect listening, in which speech comes from the impaired side. It was concluded that severe unilateral deafness is a significant disability, requiring more attention in clinical practice, particularly with pre-surgical vestibular schwannoma patients.

Sumario

Un nuevo cuestionario desarrollado para investigar las dificultades auditivas auto-reportadas en sordera unilateral fue respondido por 221 pacientes después de la excisión de un schwannoma vestibular. Los resultados fueron comparados con un grupo de 51 adultos normoyentes y 12 pacientes con hipoacusia severa unilateral de otras etiologías. Los pacientes con schwannoma vestibular calificaron su audición después de la cirugía como sordera profunda en el oído operado y peor que la audición pre-quirúrgica en el otro oído. El análisis factorial de los resultados reveló un factor de audición general y cinco factores que representan el desempeño en situaciones específicas; audición indirecta, audición directa, audición cara a cara, ruido y distancia, y localización, que representan desempeño en situaciones auditivas específicas. Dos de estos factores, la audición directa y la audición cara a cara no han sido comentados previamente en la literatura. No se encontraron diferencias entre los grupos de hipoacúsicos con respecto a ninguno de los factores. Ambos grupos dieron puntuaciones significativamente peores que los oyentes normales en todos los factores y se calificaron a sí mismos peor en la audición indirecta cuando el lenguaje llega al peor oído. Se concluye que la sordera unilateral severa es una discapacidad significativa, que requiere mayor atención en la práctica clínica, particularmente en pacientes con un de schwannoma vestibular antes de la cirugía.

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