1 University Department of Innovative Technologies in Medicine and Dentistry, Gabriele d'Annunzio University of Chieti-Pescara, Chieti, Italy. salvatore.maggiore@unich.it.
2 Department of Anesthesiology and Intensive Care Medicine, SS. Annunziata Hospital, Chieti, Italy. salvatore.maggiore@unich.it.
3 Department of Anesthesiology and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of The Sacred Heart, Rome, Italy.
4 Medical ICU, University Hospital Saint Louis, APHP, Paris, France.