Professor in anesthesiology and intensive care at 'sapienza university of rome, italy, author of 250 indexed papers, 'member of the esaic board of directors, chair of the 'national anesthesia societies committee of the esaic, past member of the esaic research committee and past chair of the subcommittee on neuroanesthesia, member of the task force on postoperative delirium guidelines, chair of the perioperative fasting guidelines.