Guided Fluid-balance Optimization With Mini-fluid chALlenge During Septic Shock

Pragmatic optimization fluid management protocol based on Mini-Fluid Challenge (MFC) in treating an acute circulatory failure. MFC consist of an infusion of 100 ml of colloid solution (4% human serum albumin) during 1 minute via a separate venous line. Before and after each MFC and depending on the hemodynamic device used, the attending physician will perform a first set of hemodynamic measurements, including cardiac index (CI) or cardiac output (CO); stroke volume (SV), indexed stroke volume (iSV) or velocity time index (VTI). If the variation in measurement is superior to 10%, the attending physician will infuse 400 ml of buffered crystalloid solution or saline solution. After an infusion of 500 ml, fluid responsiveness will be evaluated with CI or CO measurement. For non-responders, fluid challenge must be stopped and other therapeutics should be considered. For responder, another MFC should be consider if hemodynamic status is not stabilized.

Patients included in control group will be managed according to the last surviving sepsis recommendations edited in 2017.