Transient unilateral hearing loss induced by electrocortical stimulation.
A 32-year-old patient with seizures experienced decreased right-ear hearing during electrocortical stimulation mapping of the left lateral superior temporal gyrus. Audiometric testing under headphones confirmed a reversible, moderate unilateral hearing loss. Under binaural listening conditions, auditory comprehension was impaired at the same site, whereas word repetition, environmental sound recognition, naming, and spontaneous speech remained intact.
Sinha
S R
SR
Department of Neurology, Johns Hopkins University, Baltimore, MD, USA. sasinha@jhmi.edu
Crone
N E
NE
Fotta
R
R
Lenz
F
F
Boatman
D F
DF
D000328:Adult; D001308:Auditory Perceptual Disorders / Q000209:etiology* / Q000503:physiopathology; D001309:Auditory Threshold; D001931:Brain Mapping; D004007:Dichotic Listening Tests; D004292:Dominance, Cerebral; D004558:Electric Stimulation / Q000009:adverse effects*; D017029:Epilepsy, Complex Partial / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D046088:Hearing Loss, Unilateral / Q000209:etiology*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D013702:Temporal Lobe / Q000503:physiopathology*; D014057:Tomography, X-Ray Computed