1 Department of Neurology, Neurological Intensive Care Unit, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria. raimund.helbok@tirol-kliniken.at.
2 Department of Intensive Care Medicine, University Hospitals Leuven, Herestraat 49, 3000, Leuven, Belgium.
3 Department of Neurology, Neurological Intensive Care Unit, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.