hereditary hearing impairment


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hereditary hearing impairment

hearing impairment occurring in syndromic forms (in which there are other anomalies in addition to the hearing impairment) and nonsyndromic forms (in which hearing impairment is the only unusual finding) with autosomal dominant and recessive, X-linked, and mitochondrial modes of transmission; may be congenital, of early onset in childhood, or of late onset in midlife and advanced age.

he·red·i·tar·y hear·ing im·pair·ment

(hĕr-ed'i-tar-ē hēr'ing im-pār'mĕnt)
Hearing impairment occurring in syndromic forms (in which there are other anomalies in addition to the hearing impairment) and nonsyndromic forms (in which hearing impairment is the only unusual finding) with autosomal dominant and recessive, X-linked, and mitochondrial modes of transmission; may be congenital, of early onset in childhood, or late onset in mid-life and advanced age.
References in periodicals archive ?
Presently, the laboratory is studying the genes responsible for hereditary hearing impairment. Check the section on "Selected Publications" for new studies on Waardenburg syndrome.
There are more than 200 forms of syndromic hereditary hearing impairment. NIDCD-supported scientists have been able to map or locate the abnormal genes on their chromosomes for three of these hereditary syndromic forms of hearing loss: Waardenburg syndrome (WS) type 1 and Usher syndrome types 1 and 2.

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