Central deafness

Introduction Central deafness is one of the manifestations of hearing impairment, including brain stem central deafness and cortical deafness. The lesion is located in the brainstem and brain, involving the cochlear nucleus and its central conduction pathway, and the auditory cortical center leads to central deafness.

Cause

The lesion is located in the brainstem and brain, involving the cochlear nucleus and its central conduction pathway, and the auditory cortical center leads to central deafness. The lesion is located in the brainstem and brain, involving the cochlear nucleus and its central conduction pathway, and the auditory cortical center leads to central deafness in the central deafness: involving the cochlear nucleus to produce one-sided deafness, to a lesser extent; if one side of the cochlea is involved The nucleus and the contralateral cross-fibers produce bilateral deafness, which is more common in some sexy vocal deafness, and is common in pons and medullary lesions. Cortical deafness: Cortical deafness is difficult to distinguish between the sound and the nature of the sound. Sometimes, although the general hearing is not damaged, the aesthetic ability of the language is reduced. As one side of the cochlear nucleus fibers projects into the bilateral auditory cortex, one side of the auditory cortex is damaged or one side of the conduction pathway is damaged resulting in one or both hearing loss.

an examination

The lesion is located in the brainstem and brain, involving the cochlear nucleus and its central conduction pathway, and the auditory cortical center leads to central deafness.

(1) Brain-dry central deafness: involving the cochlear nucleus to produce one-sided deafness, to a lesser extent; if one side of the cochlear nucleus and the contralateral cross-fiber are involved, bilateral deafness is generated, with partial sexy deafness More common, common in pons, medullary lesions.

(2) Cortical deafness: Cortical deafness is difficult to distinguish between the sound distance and the nature. Sometimes, although the general hearing is not damaged, the aesthetic ability of the language is reduced. As one side of the cochlear nucleus fibers projects into the bilateral auditory cortex, one side of the auditory cortex is damaged or one side of the conduction pathway is damaged resulting in one or both hearing loss.

Differential diagnosis

Need to be identified with the following symptoms:

Cochlear deafness: Cochlear deafness can cause hearing impairment. Because the blood supply to the cochlea is relatively fragile, it is easily damaged. All lesions in the cochlea can cause cochlear deafness.

Conductive deafness: Hearing impairment caused by external or middle ear lesions is called conductive deafness.

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