Irene Comisso (RN, MSN) was graduated in 2000, and achieved the Master in Nursing Sciences degree in 2011. She works as ICU nurse since 2000, and lectures ICU nursing at Nursing Bachelor in Udine, Italy. She is member of the scientific board of STAT (selected topics in anaestesia and intensive care) annual congress. She is author of several publications and participated in critical care nursing conferences as speaker and chairman.Alberto Lucchini works as a nurse in the general ICU at the Department of perioperative medicine and intensive care of San Gerardo Monza hospital since 1992. He is a chief nurse since 2003. Since 2006 he is the coordinator of master in Nursing Sciences of anesthesia and intensive care at the University of Milan Bicocca. He has been a member of the scientific board in several events and conferences on the topic of critical care nursing. He is member of the direction board of Aniarti (Italian critical care nurses association). He has several publications and collaborations to observational and multicentric studies.Stefano Bambi (RN, MSN) is a PhD candidate in nursing science at the University of Firenze, Italy. He was graduated in 1995, and has been working as staff nurse in emergency department for about 10 years. Since 2008, he is working as staff nurse in intensive care unit. He was formerly lecturer in Emergency and Critical Care Nursing at Nursing Bachelor and other universitary courses in Florence. He was (invited) speaker in several conferences. He is an author of several nursing papers published in national and international journals.Gian Domenico Giusti (RN, MSN) is staff nurse in Intensive Care Unit at Perugia Hospital. He is Lecturer in Critical Care at School of Nursing, Perugia University of Medicine, Italy. He is member of National Board of Aniarti (Italian Critical Care Nurses Associations) and member of Editorial Board of  “Scenario. Il nursing nella sopravvivenza” (Official Journal of Aniarti). He is the author of many scientific publications and invited speaker in several conferences.