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Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
Published on: August 4, 2023
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Agreement between health utility instruments in cochlear implantation
G G J Ramakers1,2, Y E Smulders1,2, A van Zon1,2
1Department of Otorhinolaryngology - Head and Neck Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
Summary
Health utility scores vary by instrument in adult cochlear implant patients. The Health Utilities Index mark 3 (HUI3) showed the greatest gain in utility after cochlear implantation.
Area of Science:
- Audiology
- Health Economics
- Quality of Life Research
Background:
- Adults with bilateral deafness often undergo cochlear implantation to improve hearing.
- Assessing the impact of cochlear implantation on patient well-being is crucial.
- Different health utility instruments exist, but their comparability in this population is unclear.
Purpose of the Study:
- To compare health utility scores using various instruments in adults with bilateral deafness.
- To evaluate changes in utility scores post-unilateral or bilateral cochlear implantation.
- To determine the most suitable instrument for future cochlear implantation research.
Main Methods:
- Prospective, multicentre randomized controlled trial.
- 38 adult patients with severe to profound bilateral post-lingual sensorineural hearing loss.
- Utilized EuroQol five-dimensional questionnaire (EQ-5D), Health Utilities Index mark 3 (HUI3), and visual analogue scales (VAS) preoperatively and up to two years postoperatively.
Main Results:
- Significant differences observed in EQ-5D, HUI3, and VAS general utility scores.
- Poor agreement between the compared health utility instruments.
- The HUI3 and VAS general demonstrated a gain in health utility post-cochlear implantation, with HUI3 showing the highest increase.
Conclusions:
- Health utility scores are instrument-dependent.
- The Health Utilities Index mark 3 (HUI3) is recommended for future cochlear implantation studies due to its sensitivity in capturing utility gains.

