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Background: Nurses guarantee assistance using different nursing theories, which present different conceptual frameworks, but which have a common vision in the whole of the human being, his holistic needs and the connection with the environment. Florence Nightingale was the first to introduce aspects of the scientific method, structuring a theory focused on the connection between the management of the physical environment and the actions of nurses. Methods: The aim is the evaluation of Nightingale's theory in reference to its contemporary integration, through a narrative review of the literature. Results: The action of nurses on the environment according to Nightingale's theory in care settings and hand hygiene are identified as fundamental in the fight against the spread of infections and in the implementation of the holistic vision. Discussion: Nightingale's theory shows elements of applicability and modernity, such as the acquisition of a greater awareness of healthcare professionals in relation to the care of environments and hand hygiene. Conclusions: Florence Nightingale's theory presents aspects of validity, but further studies are needed to contribute to the evolution of her model, especially in its contemporary contextualization.

In recent years, the incidence rate of chronic diseases shows a steady increase in every industrialized Country. The almost logarithmic trend of the number of people living with chronic diseases is constantly on the rise. Each predictive statistical model indicates a strong impact for national health systems at the level of the organization of care and management costs. It is urgent to systematically introduce an evidence-based care model in chronic care management such as the Chronic Care Model. The Chronic Care Model is the reference model for WHO. The Chronic Care Model allows for personalized, holistic, multi-professional assistance, characterized by a strong humanization of care, by preventive interventions and relationships between healthcare professionals, patients and caregivers as a system of care and assistance. The fundamental roles are social integration and the improvement of the quality of life of patients. The Chronic Care Model involves the use of a computerized system of information flow and telemedicine and trained healthcare professionals. The Chronic Care Model showed an improvement in the quality of life, a reduction in the number of hospitalizations, a better adherence to therapies, and a reduction in costs.

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