title: [Problems posed by etiologic research on thrombotic conditions].
abstract: In venous thrombosis conditions, the biological etiological survey is, to day, absolutely necessary. In approximately 30 p. cent of the cases of recurring venous thrombosis, there is a deficit in Protein S, Protein C, antithrombin III, a plasminogen or fibrinogen abnormality and a lack of fibrinolysis. On the contrary, despite of the obvious role of platelets in arterial thrombosis, the biological survey is more difficult.
mesh_terms: D001158:Arteries; D001778:Blood Coagulation Disorders / Q000150:complications; D006801:Humans; D010974:Platelet Aggregation; D013924:Thrombophlebitis / Q000209:etiology; D013927:Thrombosis / Q000209:etiology*
vernacular_title: Les problèmes posés par l'enquête étiologique des états thrombotiques.