1 From the Department of Anesthesiology, University Hospital Basel, Basel, Switzerland (EM, DB), the Department of Anesthesiology, Zurich City Hospital, Zurich, Switzerland (EM, AR), the Department of Anesthesiology, Cardiocentro, Lugano, Switzerland (TC), the Department of Anaesthesiology and Pain Medicine, Inselspital, University of Bern, University Hospital Bern, Bern, Switzerland (GE).