H Quintard1, G Meyfroidt2,3, G Citerio4. 1. Intensive Care Unit, CHU Nice, Nice, France. quintardherve@gmail.com. 2. Department and Laboratory of Intensive Care Medicine, KU Leuven, Leuven, Belgium. 3. University Hospitals Leuven, Leuven, Belgium. 4. School of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy.