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1 Mayo Clinic Rochester, MN
Nonfatal penetrating injuries to the brainstem offer a unique opportunity to assess subcortical auditory pathway function. A case study of a patient suffering a severe nailgun accident is presented. Hearing sensitivity and acoustic reflexes were normal bilaterally, but word recognition was reduced for one ear. Auditory brainstem response results indicated waves IIV were present bilaterally, but wave V was absent bilaterally. Results of vestibular findings indicated central pathology also. Results of audiologic, vestibular, radiologic, neurologic, and physical medicine examinations are discussed.
Key Words: auditory brainstem response (ABR), electronystagmography (ENG), magnetic resonance imaging (MRI)
Submitted on May 4, 1998
Accepted on December 21, 1998
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