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Chronic tinnitus can be influenced positively by plastic cortical changes of tinnitus assignment and auditory perception. Acoustic stimulation plays an important role, either through active hearing therapy or through a hearing device. The positive effect of hearing aids regarding tinnitus loudness and severity has been shown in many studies with large numbers of patients and amounts to up to 70%. Implantable hearing systems and their effect on tinnitus have not been examined sufficiently yet; there are reports about positive as well as negative effects on tinnitus perception. There is a strong indication, however, when pathological processes in the middle ear need direct coupling of the implantable hearing aid with the stapes or the round window and there is no possibility of providing a conventional hearing aid due to high-grade combined hearing loss. Cochlear implants (CI) for profoundly deaf patients influence tinnitus loudness and severity in 34-93% of the patients; the large deviation is due to inhomogeneous parameters in the studies that are not always based on validated questionnaires. Existing tinnitus, however, influences the outcome of CI patients. There are studies and discussions about the effect of CI for unilateral deafness with tinnitus.
HNO-Klinik, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland, email@example.com.
This article was published in the following journal.
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Wearable sound-amplifying devices that are intended to compensate for impaired hearing. These generic devices include air-conduction hearing aids and bone-conduction hearing aids. (UMDNS, 1999)
Multi-channel hearing devices typically used for patients who have tumors on the COCHLEAR NERVE and are unable to benefit from COCHLEAR IMPLANTS after tumor surgery that severs the cochlear nerve. The device electrically stimulates the nerves of cochlea nucleus in the BRAIN STEM rather than the inner ear as in cochlear implants.
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Hearing loss due to disease of the AUDITORY PATHWAYS (in the CENTRAL NERVOUS SYSTEM) which originate in the COCHLEAR NUCLEI of the PONS and then ascend bilaterally to the MIDBRAIN, the THALAMUS, and then the AUDITORY CORTEX in the TEMPORAL LOBE. Bilateral lesions of the auditory pathways are usually required to cause central hearing loss. Cortical deafness refers to loss of hearing due to bilateral auditory cortex lesions. Unilateral BRAIN STEM lesions involving the cochlear nuclei may result in unilateral hearing loss.
The cochlear part of the 8th cranial nerve (VESTIBULOCOCHLEAR NERVE). The cochlear nerve fibers originate from neurons of the SPIRAL GANGLION and project peripherally to cochlear hair cells and centrally to the cochlear nuclei (COCHLEAR NUCLEUS) of the BRAIN STEM. They mediate the sense of hearing.
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