- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05223205
Optical Coherence Tomography Angiography Characteristics of Patients With Surgically Closed Full-thickness Idiopathic Macular Holes < 600 μm With Air Versus 10% SF6 Tamponade
Optical Coherence Tomography Angiography (AngioVue™, Optovue Inc., Fremont, Calif., USA) Characteristics of Patients With Surgically Closed Full-thickness Idiopathic Macular Holes < 600 μm With Air Versus 10% SF6 Tamponade - a Pilot Study
State of the art treatment for idiopathic macular holes consists of pars plana vitrectomy, internal limiting membrane staining with a blue colouring dye, internal limiting membrane peeling and filling of the vitrectomized space with a specific tamponade such as air and SF6. Air and SF6 have previously shown similar closure rates, although there was a trend towards lower closure rates in large diameter IMH (Idiopathic Macular Holes) using air. IMH with diameters < 600 μm are currently believed to have similar closure rates with air and SF6. The investigators want to assess possible effects of the used tamponade (air or SF6) on closure rates and perfusion parameters represented by OCTA (Optical coherence tomography angiography). IMH eyes with a minimum diameter > 600 μm will be excluded. Two idiopathic macular hole patient groups will therefore be formed: The first group (group 1) will receive air after vitrectomy and membrane peeling, the second group (group 2) will receive 10% SF6 (and 90% air) after vitrectomy and membrane peeling. After recruitment, patients will therefore be electronically randomized to one of the two groups. The groups will then be compared by the means of OCT (Optical coherence tomography) and OCTA.
Note: The trial was registered retrospectively on Clinicaltrials.gov after start of recruitment.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Styria
-
Graz, Styria, Austria, 8036
- Department of Ophthalmology
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Patient must be able and willing to give informed consent.
- Patient must be between 18 and 100 years of age.
- Patient must not have any significant media opacity which interferes with the examination.
- Patient must have an (stage 1-4) idiopathic macular hole requiring surgery.
Exclusion Criteria:
- Unwilling or unable to provide informed consent
- Under 18 or over 100 years of age
- Significant media opacities
- Systemic pathologies making an examination difficult or cumbersome to the patient
- Primary and/or secondary epiretinal membranes (ERM), except incipient ERMs not affecting the foveal contour and not requiring surgery
- Full-thickness idiopathic macular hole > 600 μm in minimum diameter
- Nonclosure
- Lamellar holes not requiring surgery
- Pseudo holes
- Glaucoma
- Diabetes
- Anisometropia > 2 diopters
- High myopia (spherical equivalent > 6 diopters and/or axial length > 26 mm
- Other retinal or ophthalmic pathologies except moderate cataract
- OCTA scan signal strength < 5
- Low image quality
- Failure of automatic layer segmentation
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Air group
Air tamponade after vitrectomy.
|
Test if air is sufficient for macular hole closure.
|
Experimental: SF6 group
10% SF6 tamponade after vitrectomy.
|
Test if 10% SF6 and 90% air is sufficient for macular hole closure.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Macular hole closure
Time Frame: 2 weeks
|
2 weeks
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Foveal avascular zone area
Time Frame: 3 months
|
3 months
|
Parafoveal vessel density
Time Frame: 3 months
|
3 months
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 32-465 ex 19/20
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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