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How common is hearing impairment in osteogenesis imperfecta?
C R Paterson1, E A Monk, S J McAllion
1Department of Medicine, University of Dundee, Dundee, Scotland. c.r.paterson@dundee.ac.uk.
The Journal of Laryngology and Otology
|March 29, 2001
Summary
Hearing impairment affects many with osteogenesis imperfecta (OI), typically starting in adulthood. By age 50, about half of OI patients experience hearing loss, with incidence stabilizing later in life.
Area of Science:
- Genetics and Audiology
- Connective Tissue Disorders
Background:
- Hearing impairment is a frequent comorbidity in osteogenesis imperfecta (OI).
- Previous estimates suggested a near-universal prevalence of hearing loss in aging OI patients.
Purpose of the Study:
- To accurately determine the incidence and age of onset of hearing impairment in a large cohort of osteogenesis imperfecta patients.
- To investigate variations in hearing loss prevalence across different clinical types of OI and within specific subtypes.
Main Methods:
- A survey examining hearing loss incidence in 1394 patients with osteogenesis imperfecta.
- Analysis of hearing impairment onset and prevalence based on age and Sillence classification subtypes.
Main Results:
- The most common age of onset for hearing impairment was between the second and fourth decades.
- Approximately 50% of patients had hearing impairment by age 50, with minimal increase thereafter.
- Hearing loss was significantly less prevalent in OI type IV compared to type I, with familial variations noted in type IA.
Conclusions:
- Hearing impairment in osteogenesis imperfecta has a defined onset period and does not approach 100% prevalence.
- Clinical type and subtype of OI influence the risk of developing hearing loss, aiding in patient counseling.