Genomics of Fibrin Clot Structure in Patients With Constitutional Dysfibrinogenemia

"For each patient included, this study will involve the collection of 20 ml of blood during a blood test carried out as part of routine care. One EDTA tube (4,5 ml) will be withdrawn and frozen for genetic testing. 15 ml of citrated blood sample (3 to 5 tubes, depending on the used tubes) are necessary for the study of fibrin clot structure. Citrated tubes will be double centrifugated and frozen (-80°C) according to Groupe Français d'Études sur l'Hémostase et la thrombose guidelines (centrifugation protocol: 1500 to 2000g at least 15min, or 2000 to 2500g at least 10min with an intermediate decantation)."