From the Department of Anesthesiology, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium (A.J., B.I., K.T., L.B., L.V.O.); Department of Anesthesiology, Brugmann Hospital, Université Libre de Bruxelles, Brussels, Belgium (A.D., I.S., P.V.d.L.); Department of Abdominal Surgery, Erasme University Hospital, Université Libre de Bruxelles, Brussels, Belgium (P.L.); Departmen (At 2018-01-01)