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Early clinical results: SOUNDTEC implantable hearing device phase II study
J V Hough1, R K Dyer, P Matthews
1Hough Ear Institute and the Department Otorhinolaryngology-Head and Neck Surgery, University of Oklahoma Health Sciences Center, Oklahoma City 73112, USA. houghear@earthlink.net
The Laryngoscope
|February 24, 2001
Summary
The SOUNDTEC Direct Drive Hearing System (DDHS) shows promising safety and efficacy in preliminary trials, significantly improving hearing performance and user satisfaction compared to traditional hearing aids. Further research is needed for statistical validation.
Area of Science:
- Otolaryngology
- Biomedical Engineering
- Audiology
Background:
- Hearing loss affects millions globally, necessitating advanced assistive listening devices.
- Traditional hearing aids can have limitations such as acoustic feedback and occlusive effects.
- Semi-implantable electromagnetic hearing devices offer a novel approach to hearing restoration.
Purpose of the Study:
- To evaluate the safety and efficacy of the SOUNDTEC Direct Drive Hearing System (DDHS).
- To compare the performance of the DDHS against optimally fitted conventional hearing aids.
- To present preliminary findings from an ongoing clinical trial.
Main Methods:
- An ongoing FDA phase II, 100-subject multicenter clinical trial.
- Subjects were tested with their optimally fit hearing aids (baseline) and then with the SOUNDTEC DDHS post-implantation.
- Objective and subjective outcome measures were compared between baseline and six-month postoperative assessments.
Main Results:
- The SOUNDTEC DDHS demonstrated an average improvement of 52% in functional gain and 22% in aided thresholds.
- Significant enhancements were observed in speech in noise (17%), aided benefit (28%), and overall subject satisfaction (16.7%).
- Subjects reported absence of acoustic feedback, minimal occlusive effects, and more natural sound perception with the DDHS.
Conclusions:
- Preliminary data suggest the SOUNDTEC DDHS is safe and effective, offering improved hearing outcomes.
- The device outperformed subjects' optimally fitted hearing aids across multiple objective and subjective measures.
- The SOUNDTEC DDHS shows potential to enhance quality of life for individuals with hearing impairments.