An Evidence-Based Systematic Review of Directional Microphones and Digital Noise Reduction Hearing Aids in School-Age Children With Hearing Loss.

Purpose: The purpose of this evidence-based systematic review was to evaluate the efficacy of digital noise reduction and directional microphones for outcome measures of audibility, speech recognition, speech and language, and self- or parent-report in pediatric hearing aid users. Method: The author...

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Publicado en:American Journal of Audiology Vol. 21; no. 2; pp. 295 - 313
Autores principales: Mccreery, Ryan W., Venediktov, Rebecca A., Coleman, Jaumeiko J., Leech, Hillary M.
Formato: research systematic review tables/charts Journal Article
Publicado: American Speech-Language-Hearing Association Dec2012
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Dec2012
      vid: 21
      iid: 2
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      pub: American Speech-Language-Hearing Association
      place: Rockville, Maryland
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        10.1044/1059-0889(2012/12-0014)
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        atl: An Evidence-Based Systematic Review of Directional Microphones and Digital Noise Reduction Hearing Aids in School-Age Children With Hearing Loss.
      aug:
        au:
          Mccreery, Ryan W.
          Venediktov, Rebecca A.
          Coleman, Jaumeiko J.
          Leech, Hillary M.
        affil: Boys Town National Research Hospital, Omaha, NE
      sug:
        subj:
          Transducers
          Noise
          Hearing Aids
          Equipment Design
          Rehabilitation of Persons with Hearing Loss In Infancy and Childhood
          Human
          Speech Perception
          P-Value
          Effect Size
          PubMed
          CINAHL Database
          Psycinfo
          ERIC Database
          Child, Preschool
          Child
          Adolescence
          Descriptive Statistics
          Male
          Female
          Systematic Review
          Child, Preschool: 2-5 years
          Child: 6-12 years
          Adolescent: 13-18 years
          Male
          Female
      ab: Purpose: The purpose of this evidence-based systematic review was to evaluate the efficacy of digital noise reduction and directional microphones for outcome measures of audibility, speech recognition, speech and language, and self- or parent-report in pediatric hearing aid users. Method: The authors searched 26 databases for experimental studies published after 1980 addressing one or more clinical questions and meeting all inclusion criteria. The authors evaluated studies for methodological quality and reported or calculated p values and effect sizes when possible. Results: A systematic search of the literature resulted in the inclusion of 4 digital noise reduction and 7 directional microphone studies (in 9 journal articles) that addressed speech recognition, speech and language, and/or selfor parent-report outcomes. No digital noise reduction or directional microphone studies addressed audibility outcomes. Conclusions: On the basis of a moderate level of evidence, digital noise reduction was not found to improve or degrade speech understanding. Additional research is needed before conclusions can be drawn regarding the impact of digital noise reduction on important speech, language, hearing, and satisfaction outcomes. Moderate evidence also indicates that directional microphones resulted in improved speech recognition in controlled optimal settings; however, additional research is needed to determine the effectiveness of directional microphones in actual everyday listening environments.
      pubtype: Academic Journal
      doctype:
        research
        systematic review
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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