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<p>To investigate the impacts of cochlear implantation on wideband tympanometry parameters in comparison to non-implanted ears in implanted patients and to normal hearing ears. PubMed, Medline, Scopus, Cochrane Central Register of Control Trials, Web of Science, Google Scholar, and Embase were systematically searched up to February 2025. The search strategy was structured by a combination of relevant keywords and medical subheadings (MeSH). Eligible English language studies were included, and their quality was assessed. This review was carried out according to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines and Population, Intervention, Comparison, and Outcome (PICO) statement. A total of 8 studies, including 459 ears, met the inclusion criteria. In implanted ears, post-op absorbance was significantly lower than pre-op at low, middle, and high frequencies (<i>P</i> &lt; 0.05). Implanted ears had significantly lower absorbance than non-implanted ears in impanted patients (<i>P</i> &lt; 0.05). Moreover, implanted ears had significantly lower absorbance than normal hearing ears at low frequencies (≤ 1000&#xa0;Hz) (<i>P</i> &lt; 0.05). Implanted ears had significantly higher absorbance than normal hearing ears at two middle frequencies (1600 and 2000&#xa0;Hz) (<i>P</i> &lt; 0.05). However, there were no significant differences between two groups at high frequencies (<i>P</i> &gt; 0.05). This systematic review demonstrated that cochlear implantation results in decreased absorbance on wideband tympanometry at low, middle, high, or all frequencies, which may be due to the presence of electrode arrays in the IE and/or increased stiffness of the middle ear and inner ear after cochlear implantation.</p>

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The Impacts of Cochlear Implantation on Wideband Tympanometry: A Systematic Review

  • 期刊论文

  • 发表日期：

    2025年12月8日

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  • Alireza Sharifi,
  • Ali Kouhi,
  • Jacob R. Brodsky,
  • Samad Samadizadeh,
  • Sahar Ghaedsharaf,
  • Elham Farasat

摘要

To investigate the impacts of cochlear implantation on wideband tympanometry parameters in comparison to non-implanted ears in implanted patients and to normal hearing ears. PubMed, Medline, Scopus, Cochrane Central Register of Control Trials, Web of Science, Google Scholar, and Embase were systematically searched up to February 2025. The search strategy was structured by a combination of relevant keywords and medical subheadings (MeSH). Eligible English language studies were included, and their quality was assessed. This review was carried out according to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines and Population, Intervention, Comparison, and Outcome (PICO) statement. A total of 8 studies, including 459 ears, met the inclusion criteria. In implanted ears, post-op absorbance was significantly lower than pre-op at low, middle, and high frequencies (P < 0.05). Implanted ears had significantly lower absorbance than non-implanted ears in impanted patients (P < 0.05). Moreover, implanted ears had significantly lower absorbance than normal hearing ears at low frequencies (≤ 1000 Hz) (P < 0.05). Implanted ears had significantly higher absorbance than normal hearing ears at two middle frequencies (1600 and 2000 Hz) (P < 0.05). However, there were no significant differences between two groups at high frequencies (P > 0.05). This systematic review demonstrated that cochlear implantation results in decreased absorbance on wideband tympanometry at low, middle, high, or all frequencies, which may be due to the presence of electrode arrays in the IE and/or increased stiffness of the middle ear and inner ear after cochlear implantation.