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Hemodynamic monitoring is a very important measure for critically ill patients with burn and trauma,and it should be carried out throughout the course of treatment.Functional hemodynamic monitoring consists of the assessment of the dynamic interactions of hemodynamic variables in response to a defined volume change.Accordingly,response of fluid volume can be assessed in a quantitative fashion by measuring variation of both arterial pulse pressure and left ventricular stroke volume during positive pressure breathing,or the change in cardiac output response to passive leg raising maneuver.Functional hemodynamic monitoring,contrary to that of static condition in order to realize dynamic and individual monitoring,is related to response to treatment,and it is a useful complement to static (routine) hemodynamic monitoring.At present,in the care of sepsis,shock,and mechanical ventilation,etc.related to burn injury and trauma,functional hemodynamic monitoring is more and more accepted and applied bv medical personnel of ICU in burn and trauma departments.Therefore,further study on functional hemodynamic monitoring should be emphasized and practised.