Auditory brainstem response artefact caused by caloric testing.
In the external ear canal, residual water from caloric testing or any other irrigation may act to simulate a conductive hearing loss and interfere with subsequent auditory brainstem response recording leading to increased latencies and reduced amplitudes. This artefact in the ABR may be mistaken for a retrocochlear lesion.
Gimsing
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Department of Audiology, Sct. Joseph's Hospital, Esbjerg, Denmark.
D001309:Auditory Threshold / Q000502:physiology; D001933:Brain Stem / Q000503:physiopathology*; D002150:Caloric Tests; D005072:Evoked Potentials, Auditory; D005260:Female; D034381:Hearing Loss / Q000503:physiopathology*; D006314:Hearing Loss, Conductive / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D011930:Reaction Time / Q000502:physiology; D014724:Vestibular Function Tests