Unilateral severe sensorineural hearing loss
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Those who fall under any of the criteria of A) or B) and meet all of the criteria of 1) and 2)are eligible. A)Unilateral highly sensorineural hearing loss or unilateral highly mixed hearing loss *The average hearing level based on standard pure tone audiometry is 70 dB or more on the affected side and 40 dB or less on the healthy side. Unilateral severe mixed hearing loss should also meet the affected bone conduction hearing level of 55 dB or less. Furthermore the average hearing level is calculated by the right. B) Those who fall under the control group *The average hearing level (described above) by standard pure tone audiometry is 40 dB or less on both sides. 1)Those who are between the ages of 18 and 75 at the time of obtaining consent 2)Those who have received sufficient explanations for participation in this research, fully understood, and obtained written consent of their own free will.
Exclusion criteria
Exclusion criteria: 1) Those with hearing loss with significant fluctuations in hearing 2) Those who have a disease other than hearing loss that makes orientation test impossible. 3) Those who are judged to be inappropriate as research subjects by the person responsible for the research.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Speech perception in silence and for each signal-to-noise ratio. | — |
Secondary
| Measure | Time frame |
|---|---|
| Differences in speech perception by monosyllable or word | — |
Countries
Japan
Contacts
International University of Health and Welfare Hospital Otorhinolaryngology