Radiologic Criteria for Round Window Visibility Prediction in Cochlear Implantation
- Conditions
- Cochlear Implantation
- Registration Number
- NCT03950375
- Lead Sponsor
- CHU de Reims
- Brief Summary
The aim of the study is to identify the scannographic criterion the most relevant to predict the round window visibility during cochlear implantation.
- Detailed Description
Whereas several surgical techniques exist to perform a cochlear implantation, the most used is the realization of mastoidectomy followed by posterior tympanotomy, in order to expose the round window, which finally permits to access to the cochlea. This procedure might be complicated with facial paresis, loss of residual hearing, because of anatomy relationships in this millimetric area.
CT scan of temporal bone is part of systematic preoperative assessment. Technological advances in radiology during the last decades now provide inframillimetric resolution. Thus, otologic surgeons wish they could anticipate round window exposure from these CT scan. This could decrease the procedure duration, complication occurrence, or improve surgical strategy.
Several studies proposed radiological criteria in this aim, from more or less complex measures in preoperative temporal bone CT scan. However, these diagnostic tests performances have not been assessed for most of them, or compared between them.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 23
Not provided
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method peroperative round window exposure Day 0 peroperative round window exposure evaluated according to St Thomas' Hospital classification:
* visible (classes I and II) and not visible (class III)
* easily visible (classes I and IIa) and not easily visible (class IIb and III)
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Damien JOLLY
🇫🇷Reims, France