Emergencias
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Uncontrolled bleeding from serious injuries continues to be one of the main causes of preventable deaths outside hospitals. Tourniquets could be useful for quickly stemming blood flow and prevent exsanguination, although evidence supporting their use and effectiveness in civilian accidents is limited. To analyze the effectiveness of tourniquets for stopping bleeding in out-of-hospital emergencies and to explore factors associated with effectiveness. ⋯ Tourniquets are effective for stopping massive blood loss. There are few complications, most of which are attributable to the critical state of patients rather than to application of the tourniquet. A tourniquet should be applied in major trauma cases in civilian settings if massive, life-threatening bleeding cannot be stopped with direct pressure.