1. Neuro-Intensive Care Unit, Department of Anesthesiology and Intensive Care, Pitié-Salpêtrière Hospital, Paris, France
2. Department of Anesthesiology, Hopital Erasme, Bruxelles, Belgium
3. Department of Neuroradiology, Pitié-Salpêtrière Hospital, Paris, France
4. Department of Medicine, Sorbonne University, Paris, France
5. Department of Biological Haematology, Pitié-Salpêtrière Hospital, Paris, France.