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Changed to a retrospective chart review
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The primary objective of this study is to measure objective, functional outcomes of patients undergoing cartilage cap occlusion surgery for a dehiscent superior semicircular canal.
One option for managing a dehiscent superior semicircular canal is surgical intervention. One of the surgical techniques is the transmastoid and tegmen mini-craniotomy cartilage cap occlusion of the dehiscent superior semicircular canal.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Surgical Group | Active Comparator | patients will undergo a primary transmastoid and tegmen mini-craniotomy cartilage cap occlusion surgery. |
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| Non Surgical Group | No Intervention | patients meet the same criteria but will elect not to undergo surgery |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| cartilage cap occlusion surgery | Procedure | placement of a cartilage cap over the dome of the superior semicircular canal through a combined transmastoid and tegmen mini- craniotomy approach. |
| Measure | Description | Time Frame |
|---|---|---|
| objective improvement | The primary outcome measure will be the subsequent (3 month) FGA scores between the control group and the surgery group to assess any objective improvement attributable to surgery | baseline to 3 months |
| Measure | Description | Time Frame |
|---|---|---|
| ABC Scale | Secondary objective outcome measures will be changes in conductive hearing loss and changes in cervical VEMP thresholds between the two groups at the 3-month interval. Secondary subjective outcome measures will be ABC Scale and VAS scores between the two groups at 3 months. | baseline to 3 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Larry Lundy, MD | Mayo Clinic | Principal Investigator |
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| ID | Term |
|---|---|
| D000084322 | Semicircular Canal Dehiscence |
| ID | Term |
|---|---|
| D015837 | Vestibular Diseases |
| D007759 | Labyrinth Diseases |
| D004427 | Ear Diseases |
| D010038 | Otorhinolaryngologic Diseases |
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| VAS scores |
Secondary objective outcome measures will be changes in conductive hearing loss and changes in cervical VEMP thresholds between the two groups at the 3-month interval. Secondary subjective outcome measures will be ABC Scale and VAS scores between the two groups at 3 months. |
| baseline to 3 months |