“…In the first half of 2013, about 446 sentinel events were reported in USA. Their ten most frequently identified causes were the following: human factors, communication, leadership, assessment, information management, physical environment, care planning, care continuum, medication use and operative care (Barach, 2012; Oleske, 2010). Additionally, the ten most frequently reviewed sentinel event categories from 2013 to 2014 were: delay in treatment, invasive procedure on the wrong patient, wrong site, or wrong procedure, unintended retention of a foreign body, suicide, fall, other unanticipated events, surgery or post-surgery complication, criminal events, medication error, and perinatal death/injury (The Joint Commission, 2016b).…”