Middle ear implantation surgery
Not Applicable
Recruiting
- Conditions
- Conductive hearing loss and mixed hearing loss
- Registration Number
- JPRN-UMIN000005153
- Lead Sponsor
- Shinshu University hospital
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 1
Inclusion Criteria
Not provided
Exclusion Criteria
The exclusion criteria are as follows: (1) Retrolabyrinthine deafness, central deafness (2) Active stage of refractory otitis media (3) Acute progressive sensorineural hearing loss (4) Inner ear disorder becaouse of labyrinthitis in adulthood (5) Chronic or refractory vestibular disfunction
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method The therapeutic effects are evaluated at 5 month after the middle ear implantation surgery, using the free field speech recognition threshold test. In the speech recognition threshold test with quiet, marked recovery is defined as any recovery of the maximum speech recognition score (%) by speech recognition threshold test using 67S or 57S Japanese monosyyrable word table (Japan Audiological Society 1967, 1957).
- Secondary Outcome Measures
Name Time Method