Fluid Balance Neutralization During CRRT (Continuous Renal Replacement Therapy)

A net ultrafiltration rate of 100 ml/h or more will be applied during the first 72 hours of study participation. To insure the hemodynamic security of the intervention, it is associated with an advanced hemodynamic monitoring protocol which encompasses cardiac index, preload dependence assessment (using postural maneuvers), lactate levels and central venous pressure evaluation. The hemodynamic monitoring protocol allows the decrease or suspension of the neutral ultrafiltration rate in case of hemodynamic instability or of hemodynamic status considered at risk of worsening if net ultrafiltration rate is maintained.

The active control group aims to represent the present standard of care of net ultrafiltration management in the first 72 hours of study participation in patients with critical illness. This will be performed by setting the net ultrafiltration rate to 0 up to 25 ml/h.