Efficacy of Individual Auditory Training in Adults: A Systematic Review of the Evidence

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Abstract
A systematic review of the literature was conducted addressing the following question, "Is there evidence of improvement in communication skills through individual auditory training in an adult hearing-impaired population?" Keywords and authors were used as search terms in eight major indexes, and seven textbooks were reviewed for related references. The level of evidence that was accepted included randomized controlled trials, nonrandomized controlled trials, cohort, and before/after designs with or without control groups. Two hundred thirteen articles were identified during the preliminary search with 171 of these eliminated by review of abstracts because they did not meet the search criteria. Forty-two manuscripts were reviewed, with six meeting the evidence and search criteria. The strengths and weaknesses of these studies are highlighted, and the systematic review question is answered in light of these studies. In addition, elements critical to the future of auditory training research and clinical practice are offered. Spanish Se realizó una revisión sistemática de la literatura planteando la siguiente pregunta: "¿Existe evidencia sobre la mejoría en las habilidades de comunicación a través del entrenamiento auditivo individual en una población de adultos hipoacúsicos?" Se utilizaron palabras clave y autores para la búsqueda de términos en ocho índices principales y se revisaron siete libros de texto para encontrar referencias relacionadas. El nivel de evidencia que se aceptó incluyó estudios aleatorios controlados, estudios controlados no aleatorios, diseños de cohorte y de tipo antes/después, con o sin grupos control. Se identificaron doscientos trece artículos durante la búsqueda preliminar, eliminando 171 de éstos a través de la revisión de sumarios, dado que no cumplieron los criterios de búsqueda. Se revisaron cuarenta y dos manuscritos, encontrando seis que cumplían los criterios de búsqueda y evidencia. Se destacan las fortalezas y debilidades de estos estudios, se contesta la pregunta sistemática de revisión a la luz de estos estudios.

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