Fitting hearing aids in children with severe hearing loss

Area of Science:

• Audiology
• Pediatric audiology
• Hearing aid technology

Background:

• Limited initial data on pediatric hearing loss necessitates robust hearing aid fitting protocols.
• Optimal hearing aid prescription for children is challenging, requiring validation of the final fitting.
• Focusing on speech recognition is paramount, even for children with severe to profound hearing loss.

Purpose of the Study:

• To evaluate the effectiveness of the Multipeak Test System (MTS) in optimizing hearing aid gain and frequency response.
• To determine the impact of hearing aid fitting on speech recognition abilities in children.
• To establish the limits of audibility for speech perception with hearing aids based on Pure Tone Average (PTA).

Main Methods:

• Utilizing the Multipeak Test System (MTS) to verify and validate hearing aid fittings.
• Assessing speech recognition abilities in relation to Pure Tone Average (PTA) thresholds.
• Comparing outcomes for children with different degrees of hearing loss.

Main Results:

• The MTS test enables optimization of gain and frequency response for improved speech recognition.
• Speech perception abilities are directly correlated with the Pure Tone Average (PTA).
• Children with a PTA exceeding 110 dB show minimal to no improvement in speech perception with hearing aids, even with training.

Conclusions:

• Hearing aid fittings must include verification procedures to ensure optimal speech recognition.
• The MTS test is a valuable tool for optimizing hearing aid performance in pediatric cases.
• Profound hearing loss (PTA > 110 dB) presents significant challenges for achieving adequate speech perception with current hearing aid technology.