[The lethal triad of hemorrhage]. / La triade létale de l'hémorragie.

Coagulopathy, acidosis and hypothermia form the lethal triad in trauma patients with acute hemorrhage. The prevention of this chain reaction relies on an adapted management from the first care in pre-hospital situation: rapid arrest of bleeding, fight against hypothermia, limited vascular filling with an early recourse to vasoactive amines. Pre-hospital transfusion is still rare, whereas in the hospital, an adapted transfusion strategy can wait for or support a surgical or radiological hemostasis procedure.