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

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.