1 Department of Anesthesia and Peri-operative Care, Division of Critical Care Medicine, University of California, San Francisco (UCSF), San Francisco, CA, USA. matthieu.legrand@ucsf.edu.
2 Department of Intensive Care Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands.
3 Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands.
4 Department of Anesthesia and Intensive Care Unit, Regional University Hospital of Montpellier, St-Eloi Hospital, University of Montpellier, Phymedexp, Université de Montpellier, Inserm, CNRS, CHRU de Montpellier, Montpellier, France.