Patrick M Honore1, Sebastien Redant2, David De Bels2. 1. ICU Department, Centre Hospitalier Universitaire Brugmann, Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium. Patrick.Honore@CHU-Brugmann.be. 2. ICU Department, Centre Hospitalier Universitaire Brugmann, Brugmann University Hospital, Place Van Gehuchtenplein, 4, 1020, Brussels, Belgium.