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Caffeine concentrations in the vitreous Body and exzised epiretinal membranes are measured by gas-chromatography/mass spectrometry.
Caffeine concentrations in the vitreous Body and exzised epiretinal membranes are measured by gas-chromatography/mass spectrometry. One hour before surgery patients in the caffeine Group will receive 180mg of caffeine. in all patients vitrectomy with Membrane Peeling will be performed, due to epiretinal membranes
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| caffeine group | Experimental | 180mg of caffeine will be given orally one jour before vitrectomy with membrane peeling |
|
| control group | Active Comparator | no caffeine will be given before vitrectomy with membrane peeling, patients are drinking no coffee in general |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| vitrectomy with membrane peeling | Procedure | during vitrectomy with membrane peeling a prob of the vitreous body and the excised epiretinal membrane will be harvested for gas-chromatography/mass spectrometry |
| Measure | Description | Time Frame |
|---|---|---|
| concentration of caffeine in vitreous probes and epiretinal membranes | concentration of caffeine in the probes will be measuread by gas-chromatography/mass spectrometry | one hour |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Oliver Findl, Professor | Vienna Institute for Research in Ocular Surgery | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Vienna Institute for Research in Ocular Surgery (VIROS), Hanusch Hospital Vienna | Vienna | 1140 | Austria |
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| ID | Term |
|---|---|
| D019773 | Epiretinal Membrane |
| ID | Term |
|---|---|
| D012164 | Retinal Diseases |
| D005128 | Eye Diseases |
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| ID | Term |
|---|---|
| D014821 | Vitrectomy |
| ID | Term |
|---|---|
| D013508 | Ophthalmologic Surgical Procedures |
| D013514 | Surgical Procedures, Operative |
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