I am Jean-Louis Vincent, a professor of Intensive Care Medicine at the University of Brussels. My talk was on fluid responsiveness — how we can predict a patient's response to fluid administration using indices like pulse pressure variation or stroke volume variation. There are limitations to this approach: the patient must be sedated, and there shouldn't be major arrhythmias. In many cases, we still have to administer fluids, but we can use a fluid challenge approach, considering the type of fluid, rate of infusion, and specific objectives and limits. Ultimately, we often have to try and evaluate the patient's actual response to fluid therapy.