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In a hospital environment, the patient security is one of the major concerns in health, in the sense of improving the efficiency of healthcare delivery, and minimizing delays or failures that could lead to other consequences. These consequences can be translated to a considerable portion of clinical errors which can be of several types, depending on the approach taken. Regarding effects, Reason (2000) argues that errors can be active, with an immediate or latent impact. Thus, the results can appear in short-term or long-term, respectively. According to Reason, these errors can have different sources, disclosed in Figure 1. Moreover, James Reason's “Swiss cheese” model of error causation defines that in complex organizations such as hospitals, errors occur due to the holes or flaws in the multiple layers of defense, causing adverse outcomes to the patients (Reason 2010, Salazar et al., 2013, Duarte et al., 2011, Portela et al., 2014).
Figure 1. Classification of clinical errors according to (Reason, 2010)
The Institute of Medicine's Quality of Health Care in America valued that about 98000 people every year die due to clinical errors at hospitals. Comparing to other main causes of death in America, this causes a greater impact in the scientific community, becoming one of the most emerging public problems today (Donaldson 2000).
The continuous and dynamic alteration of patients’ clinical status in healthcare institutions is one of the major causes of the occurrence of adverse events. This level is very high becoming urgent to find connections with other areas, such as information technologies (IT) (Peixoto et al 2012). This is one of the most explored fields in medical informatics, raising great challenges in terms of development, implementation and maintenance. Thus, over the years, and due to the high data flow, efficient and user-friendly support systems for health professionals have been emerging, called hospital information systems (HIS) (Coiera 2003).
The high number of professionals involved in clinical acts, combined with their diversity of academic backgrounds, has led to high level of automation of services, from the well-known clinical software, which has several advantages such as financial, administrative, and recruitment, until reaching the medicine itself. There, the role of these developed HIS is crucial (Khodambashi 2013, Machado 2007). Its main goal is to streamline and support the provision of direct healthcare to the patient, being some of them oriented to the use of a certain group of professionals, such as doctors and nurses (Kim & Park 2011).
In Europe, the Health2020 strategic program organized by World Health Organization (WHO) highlights nurses and their important role in improving healthcare delivery, since they are the most direct and continuous contact with the patient throughout the hospitalization episode. The essence of nursing is “caring”, i.e., providing the highest possible quality care for an assertive practice. As such, these professionals are responsible for providing safe, high quality and efficient healthcare services. To provide this high quality, all the conditions must be attended. Thus, one of the main focuses of this program is the nursing team (World Health Organization 2015, Duarte 2011, Rocha & Rocha 2014).