Efficacy of Intermittent Pneumatic Compression (IPC) on Venous Thromboembolism Incidence in Intensive Care Unit (ICU) Patients With High Bleeding Risk

Inclusion Criteria: * Age \> 18 Years, * Admission in intensive medical care unit * High risk for hemorrhage * Written informed consent given by the patient or relative. High risk for hemorrhage is defined by: * symptomatic bleeding or organic lesions likely to bleed, * hemophilic diseases, * haemostatic abnormalities: platelet count \< 50 000/mm 3, APTT \> 2 N, prothrombin time \< 40%, * recent intra-cerebral hemorrhage, * severe anemia (Hemoglobin \< 7 g/dl) due to a bleeding or unexplained. Exclusion Criteria: * Age \< 18 years, * Patient refusal, * No high risk for hemorrhage * Admission in intensive care unit ≥ 36 hours * Admission in intensive care unit likely for \< 72 hours * A "do not resuscitate" order * IPC contra-indication: Recent DVT (\< 3 month), severe lower limbs arteriopathy (III and IV), any arterial graft of the legs, a wound in the lower limb related either to a vascular disease (ulcer) or a trauma. * Patient with mechanical prosthetic heart valve.