Traumatic Head Injury Can Lead to Hearing Loss
Hearing loss is not uncommon in patients who have sustained mild to moderate traumatic brain injuries. Known by physicians as peripheral auditory dysfunction, this dysfunction, in addition to be self reported, may come to the attention of health care providers or family through evaluating or monitoring the neurological status of an injured person during the acute period following their brain injury. It is sometimes also noticeable on brain auditory evoked potentials (BAPs) sometimes also known as auditory brain stem potentials (ABPs) and auditory evoked potentials (AEPs). These tests are conducted by attaching sensors to the injured persons scalp and recording the electrical potentials generated by neuro activity and associated with specific brain function and motor processes. These tests can be used by physicians to help detect brain stem pathology and may be used in evaluating patients who are in a coma state.
In addition to having damage to specific brain function severe trauma can also cause direct damage to the ear itself. In addition, damage to hearing can result front secondary damage that may occur during inflammatory events, or from bleeding and pressure. Finally in addition to these causes hearing loss can be associated with defuse axonal injury.
Recent studies have shown that as many as 3 out of 10 patients suffering hearing loss at least a mild level in mild to moderate head injury.
Unfortunately hearing loss, like many of the symptoms of brain injury may not be adequately identified early, which can lead to additional complications for patient, family members and treating physicians and rehabilitationists. If you or a loved one has suffered a head injury and have not been tested for hearing loss, you should suggest to your provider that you receive a test for hearing loss to determine whether or not a hearing impairment may be part of the results of the injury. Identification of hearing loss may explain some of the problems that were mistakenly thought to be from cognitive impairment. Only with the correct diagnosis can a plan for future care and treatment be adequately pursued.

