Journal article
The audiologic profile of patients with Charcot-Marie Tooth neuropathy can be characterised by both cochlear and neural deficits
International journal of audiology, Vol.58(12), pp.902-912
12/02/2019
DOI: 10.1080/14992027.2019.1633022
PMID: 31318300
Abstract
Objective: The primary goal of this study was to characterise the cochlear and neural components of hearing loss in a large cohort of people with Charcot-Marie Tooth neuropathy who reported hearing difficulties.
Design: A full complement of audiologic measures including behavioral, physiologic and subjective assessments were administered.
Study sample: Seventy-nine participants completed the study. Forty-four people had CMT1, 27 had CMT2 and four had CMT-INT.
Results: Pure tone average was related to age and the absence of high-frequency DPOAE energy, suggesting a strong cochlear component. Acoustic reflexes were often elevated or absent and many participants exhibited abnormal ABR waveforms, suggesting additional neural hearing loss components. Participants with an abnormal or absent ABR wave V exhibited poorer speech perception abilities. There was an association between a prolonged ABR wave I latency and an abnormal or absent ABR wave V with a higher Charcot-Marie Tooth Neuropathy Score (indicating greater disability).
Conclusions: The hearing abilities of people with CMT are highly variable. While there were strong neural hearing loss components, speech perception abilities were not disproportionately affected in most participants. Therefore, a hearing aid trial is recommended. ABR responses may be a useful tool for monitoring the progression of CMT over time.
Details
- Title: Subtitle
- The audiologic profile of patients with Charcot-Marie Tooth neuropathy can be characterised by both cochlear and neural deficits
- Creators
- Nicholas Giuliani - Department of Otolaryngology, University of Iowa Hospitals and ClinicsLenore Holte - Center for Disabilities and Development, University Iowa Hospitals and ClinicsMichael Shy - Department of Neurology, University of Iowa Hospitals and ClinicsTiffany Grider - Department of Neurology, University of Iowa Hospitals and Clinics
- Resource Type
- Journal article
- Publication Details
- International journal of audiology, Vol.58(12), pp.902-912
- Publisher
- Taylor & Francis
- DOI
- 10.1080/14992027.2019.1633022
- PMID
- 31318300
- ISSN
- 1499-2027
- eISSN
- 1708-8186
- Language
- English
- Date published
- 12/02/2019
- Academic Unit
- Neurology; Communication Sciences and Disorders; Molecular Physiology and Biophysics; Stead Family Department of Pediatrics; Iowa Neuroscience Institute; Otolaryngology
- Record Identifier
- 9984070574902771
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