Study Status: Not yet recruiting
Recruit Status: Not yet recruiting
Study Type: Observational
Official Title: Study of the Frequency of Hemorrhages Associated With the Functional Anomalies of Willebrand Factor in Emergency Patients of a Veino Arterial or Veinous ECMO
Brief Summary: ECMO has improved the outcome of heart or respiratory failure and carcinogenic shock and are increasingly used. However bleeding complications occurring in up to 50% of patients are poorly understood and worsen the overall results. The aim is to investigate the occurence of bleeding and its frequency according to the type of ECMO either veno-arterial or veno-venous. The investigators also want to assess the relation of bleeding with von Willebrand Factor defects.