From the Department of Anesthesia, Pain and Palliative Medicine (MHK, JMJM), the Department of Oto-Rhino-Laryngology and Head and Neck Surgery (JH, HAMM), and the Department of Cardiothoracic Surgery, Radboud University Medical Center, Nijmegen, The Netherlands (AFTMV)

Correspondence to Marieke H. Kuut, Anesthesiologie, Pijn en Palliatieve geneeskunde, Radboud University Medical Center, Postbus 9101, 6500 HB Nijmegen, The Netherlands E-mail: [email protected]