Mitochondrial non-syndromic sensorineural hearing loss
- Synonyms
- Deafness, nonsyndromic sensorineural, mitochondrial; MT-CO1-Related Hearing Loss and Deafness; MT-RNR1-Related Hearing Loss and Deafness; MT-TS1-Related Hearing Loss and Deafness; Nonsyndromic Hearing Loss and Deafness, Mitochondrial
- Modes of inheritance
- Mitochondrial inheritance (Orphanet)
Summary
Excerpted from the GeneReview:Mitochondrial nonsyndromic hearing loss and deafness is characterized by sensorineural hearing loss (SNHL) of variable onset and severity. Pathogenic variants in MT-RNR1 can be associated with predisposition to aminoglycoside ototoxicity and/or late-onset SNHL. Hearing loss associated with aminoglycoside ototoxicity is bilateral and severe to profound, occurring within a few days to weeks after administration of any amount (even a single dose) of an aminoglycoside antibiotic such as gentamycin, tobramycin, amikacin, kanamycin, or streptomycin. Pathogenic variants in MT-TS1 are usually associated with childhood onset of SNHL that is generally nonsyndromic – although the MT-TS1 substitution m.7445A>G has been found in some families who also have palmoplantar keratoderma (scaling, hyperkeratosis, and honeycomb appearance of the skin of the palms, soles, and heels).
- Full text of GeneReview (by section):
- Summary
- Diagnosis
- Clinical Characteristics
- Genetically Related (Allelic) Disorders
- Differential Diagnosis
- Management
- Genetic Counseling
- Resources
- Molecular Genetics
- Chapter Notes
- References
- Authors:
- Shin-ichi Usami
- Shin-ya Nishio
- view full author information
Available tests
32 tests are in the database for this condition.
Check Related conditions for additional relevant tests.
Clinical tests (32 available)
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