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Chapter 10 - Auditory disorders in stroke

from Section 1 - Clinical manifestations

Published online by Cambridge University Press:  05 August 2012

By
Hyung Lee  and
Robert W. Baloh
Edited by
Louis R. Caplan  and
Jan van Gijn
Louis R. Caplan
Affiliation:
Beth Israel Deaconess Medical Center, Boston
Jan van Gijn
Affiliation:
University Medical Center, Utrecht
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Summary

Many different conditions cause hearing impairment including inflammation, trauma, aging (presbyacusis), ototoxic drugs, genetic disorders, and stroke. As the blood supply to the auditory system originates from the vertebrobasilar system, hearing loss and tinnitus are common with vertebrobasilar territory ischemic stroke. This chapter reviews the clinical spectrum of hearing impairment associated with stroke. Central hearing impairment results from lesions central to the cochlear nucleus from the brainstem auditory nuclei to the auditory cortex in the temporal lobe. Central hearing abnormalities characterized by difficulty understanding spoken communication usually result from lesions of the central auditory pathways rostral to the cochlear nucleus. Brainstem stroke can cause auditory symptoms such as hearing loss, phantom auditory perceptions (tinnitus and hallucinations), and hyperacusis. Cortical deafness, pure word deafness, auditory agnosia for environmental sounds, and amusia are well-known central auditory disorders associated with hemispheric stroke.

Keywords

superior cerebellar arteryipsilateral limb ataxiaposterior inferior cerebellar arteryvascular lesionsanterior inferior cerebellar arterycerebellar diseasefrontal lobe lesionscerebellar ataxia
Type
Chapter
Information
Stroke Syndromes, 3ed , pp. 131 - 143
Publisher: Cambridge University Press
Print publication year: 2012

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