Patient population description: Patients will correspond to cases of proximal venous thromboembolism. They will be recruited during consultations conducted for the chronic management of a history of proximal venous thromboembolism or thrombophilia following a recent history of proximal venous thromboembolism. Venous thromboembolism, outside of acute phase episodes, has good symptom stability over time; no difference is to be expected between patients with a chronic history of proximal venous thromboembolism and new patients coming in for a checkup. Note that these patients may or may not have a history of placental vascular disease.