Factor XIII in Major Burns Coagulation

Inclusion Criteria: * Burned patients with a burned body surface of 20% or more * Over 18 years of age Exclusion Criteria: * ABSI (Abbreviated Burns Severity Index) greater than or equal to 12 * Associated polytrauma * Coagulation deficit previously known * Treatment with anticoagulants * Electrocution burns * Admission into the unit after hour 6 after thermal trauma * The refusal of the patient, familiar or responsible to participate in the study