French Observational Study of Complications Associated With Anticoagulants and Antiplatelet Treatment in Retina/Vitreous Surgery

Study Overview
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Brief Summary
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Anticoagulants and antiplatelet treatments are frequently prescribed treatments to prevent or treat thromboembolic complications and reduce morbidity and mortality related to cardiovascular risk factors. In retina/vitreous surgery, there are rare but potentially serious risks of hemmorrhagic complication resulting in irreversible loss of visual acuity. There is no clear consensus on how to proceed during the perioperative period with regard to the continuation or discontinuation of anticoagulant and antiplatelet treatments in these types of surgery. the purpose of the study is to identify complications at 1 month depending on the type of surgery with or without discontinuation of antithrombotic treatments. Practitioners are not asked to change their modus operandi. The hypothesis is that there is no excess risk of peri- or post-operative hemorrhage in retino-vitreous surgery in patients treated with antithrombotic compared to untreated patients and that therefore discontinuation of these treatments before surgery is not necessary.

Official Title
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French Observational Study of Complications Associated With Anticoagulants and Antiplatelet Treatment in Retina/Vitreous Surgery (CLOT Study)

Conditions
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Patients Undergoing Retina/Vitreous Surgery

Intervention / Treatment
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* Other: complication


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: person who has expressed willingness to participate person over 18 years of age person with a retinal-vitreous condition requiring scheduled surgery (epi-retinal membrane surgery, vitreous traction surgery, macular hole surgery). Exclusion Criteria: person subject to legal protection (curatorship, guardianship) person deemed mentally incompetent pregnant, parturient or breastfeeding woman adult unwilling or unable to consent patient who has already participated in the study person with a physical or mental disability that does not allow participation. a person who has participated in any study of an experimental medical product within the previous 3 months person who experiences any of the following during the ophthalmological examination: severe or proliferating diabetic retinopathy intra-vitreal hemorrhage tractional retinal detachment subretinal or retrohyaloidal hematoma.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Continuation of antithrombotic drugs<br>operation carried out without stopping anticoagulants | Other: complication<br>* collection of post-operative bleeding complications<br>|
| Stop anti thrombotic drugs<br>operation performed with stopping the anticoagulants | Other: complication<br>* collection of post-operative bleeding complications<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Occurrence of intra-operative and postoperative hemorrhagic complications in retina/vitreous surgery |  | Through study completion, an average of 8 months |