1 Unidad de Cuidados Intensivos, Hospital Universitario SAS de Jerez, C/Circunvalación, s/n, 11407, Jerez de la Frontera, Spain. ignaciomonge@gmail.com.
2 Edwards Lifesciences, Irvine, CA, USA.
3 Department Anaesthesia and Intensive Care Units, Humanitas Research Hospital, Humanitas University, Milan, Italy.
4 Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.