The authors reply

Affiliations

• ¹ Department of Anaesthesiology and Intensive Care, Kuopio University Hospital, Kuopio, Finland.
• ² Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland.
• ³ CTU Bern, University of Bern, Bern, Switzerland.
• ⁴ Department of Neurosurgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.
• ⁵ Department of Intensive Care Medicine, University of Bern, Bern, Switzerland.