1 From the Department of Anaesthesiology and Critical Care, European Georges Pompidou Hospital, Assistance Publique-Hôpitaux de Paris and INSERM UMRS-1140 Université Paris Cité, Paris, France (AG), Department of Anaesthesia, University Hospitals Leuven. Catholic University of Leuven, Leuven, Belgium (EV) and Department of Anaesthesia and Intensive Care, Evangelical Hospital Vienna and Sigmund Freud Private University, Vienna, Austria (SK).