Is Auditory Steady-State Response Testing the Key for Diagnosing Non-Organic Hearing Disorders? Implications for...

Area of Science:

• Audiology
• Otolaryngology
• Neuroscience

Background:

• Non-organic hearing disorders (NOHD) present complex diagnostic challenges.
• Previous hearing assessment tools have limitations in accurately identifying NOHD.

Purpose of the Study:

• To comprehensively describe non-organic hearing disorders.
• To highlight the diagnostic superiority of auditory steady-state response (ASSR) for NOHD.

Main Methods:

• Evaluated seven patients (3 male, 4 female; ages 17-59) with suspected NOHD.
• Utilized tympanometry, pure-tone audiometry, and auditory steady-state response (ASSR) testing.
• Included patients with Munchausen syndrome and intentional feigning of hearing loss or normal hearing.

Main Results:

• ASSR testing accurately determined the hearing status in all NOHD patients.
• ASSR findings were corroborated by auditory brainstem responses (ABR) and otoacoustic emissions.
• ASSR provided reliable hearing level estimations at key frequencies (500-4000 Hz).

Conclusions:

• NOHD is a multifaceted condition with diverse etiologies.
• ASSR serves as a reliable, objective gold standard for differentiating NOHD from genuine hearing loss.
• ASSR is advantageous over ABR for assessing hearing in complex cases and distinguishing feigned hearing loss.