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Related Experiment Videos

Brainstem auditory-evoked potentials as an objective tool for evaluating hearing dysfunction in traumatic brain

Henry L Lew1, Eun Ha Lee, Yasushi Miyoshi

  • 1Physical Medicine and Rehabilitation Service, VA Palo Alto Health Care System/Stanford University School of Medicine, Palo Alto, California 94304, USA.

American Journal of Physical Medicine & Rehabilitation
|March 27, 2004
PubMed
Summary

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Traumatic brain injury (TBI) can cause hearing loss. Brainstem auditory-evoked potential (BAEP) effectively diagnosed bilateral deafness in a TBI patient who couldn't cooperate with standard hearing tests.

Area of Science:

  • Neuroscience
  • Audiology
  • Trauma Surgery

Background:

  • Traumatic brain injury (TBI) frequently involves auditory system trauma due to the violent nature of head injuries.
  • Patients with TBI may exhibit communication difficulties, complicating initial audiological assessments.

Observation:

  • A 55-year-old male TBI patient presented with communication problems.
  • Initial behavioral audiometry was unreliable due to poor patient cooperation.
  • A head CT scan revealed a left temporal bone fracture.

Findings:

  • Brainstem auditory-evoked potential (BAEP) testing indicated bilateral absence of auditory responses, suggesting profound bilateral hearing loss.
  • A subsequent CT scan identified a subtle right temporal bone fracture, in addition to the left.

Related Experiment Videos

  • This case highlights the diagnostic utility of BAEP in non-cooperative TBI patients.

    • Implications:

    • Early identification of hearing dysfunction in TBI patients is crucial for effective rehabilitation.
    • Brainstem auditory-evoked potential (BAEP) serves as a valuable tool for assessing hearing in TBI patients unable to undergo traditional audiometry.
    • Auditory system integrity should be considered in the comprehensive evaluation of TBI patients.