[A practical application of brainstem evoked response audiometry (author's transl)]

Area of Science:

• Audiology
• Neurosurgery
• Otolaryngology

Context:

• Brainstem Evoked Response Audiometry (BERA) is a standard diagnostic tool for hearing loss and retrocochlear impairments.
• Tympanoplasty, a middle ear surgery, aims to restore hearing by reconstructing the tympanic membrane and ossicular chain.
• Assessing the functional outcomes of tympanoplasty objectively is crucial for patient recovery.

Purpose:

• To introduce a novel application of Brainstem Evoked Response Audiometry (BERA) in the context of tympanoplasty.
• To explore the utility of BERA in obtaining direct, objective data on stapes mobility and middle ear sound conduction post-surgery.
• To identify the challenges in quantitative evaluation of sound transmission via BERA after tympanoplasty due to acoustic damping.

Summary:

• This study reviews the use of Brainstem Evoked Response Audiometry (BERA) for diagnosing hearing issues.
• It presents a new application of BERA during tympanoplasty to objectively assess middle ear function, including stapes mobility and sound conduction.
• Quantitative analysis of sound transmission using BERA is challenging post-tympanoplasty due to damping, necessitating a specialized mechanical vibrator for direct middle ear stimulation.

Impact:

• This research highlights the potential of BERA as an objective measure in middle ear reconstructive surgery.
• It identifies limitations in current BERA applications for post-tympanoplasty assessment, particularly regarding sound transmission quantification.
• The findings suggest the need for innovative stimulation techniques, such as mechanical vibration, to improve the accuracy of BERA in evaluating middle ear function after surgery.