1 Unit of Anesthesia and Intensive Care, Emergency Department and Critical Care Area, Santa Maria Annunziata Hospital, Bagno a Ripoli, Florence, Italy - duccio.conti@uslcentro.toscana.it.
2 Unit of Anesthesia and Intensive Care, Emergency Department and Critical Care Area, Santa Maria Annunziata Hospital, Bagno a Ripoli, Florence, Italy.
3 Department of Cardiology, Santa Maria Annunziata Hospital, Bagno a Ripoli, Florence, Italy.