[Systems medicine and complexity: rethinking health management and hospital modelling.].

We have reached the awareness that diseases, far from being simple altered health states, are characterized by intrinsic emerging and adaptive properties, requiring an interdisciplinary, global and systemic approach, oriented towards integration and coordination, rather than an atomic and disintegrated logic. A new approach is needed, "systems medicine", defined as an interdisciplinary field of study that looks at the systems of the human body as part of an integrated whole, incorporating biochemical, physiological, and environment interactions. This new kind of medicine addresses diseases and their interrelationships in a scale invariant, holistic and systematic "multi-axial" way, analysing apparati, organs, tissues, cells, molecules, always taking care of the relationships with the relative ecosystem.

[Risk of anxiety and depression in nursing students in Rome (Italy)].

The aim of this study was to evaluate the risk of anxiety and depression among student nurses. If not recognized, this risk can adversely affect student health and learning and the quality of patient care. The study was performed through administration of the twelve-item General Health Questionnaire (GHQ-12) to nursing students attending two universities in Rome (Italy).

[Ockham's razor].

The simple management of complexity, allows the definition of learning and of change strategies based on applying smart copying to innovation.

[Adverse events prevention ability].

The issue of how to address medical errors is the key to improve the health care system performances. Operational evidence collected in the last five years shows that the solution is only partially linked to future technological developments. Cultural and organisational changes are mandatory to help to manage and drastically reduce the adverse events in health care organisations.

Measuring quality of life of patients with different clinical types of psoriasis using the SF-36.

Background: Different specific and generic instruments are used to evaluate quality of life in dermatology, but their interrelationship is not well known.

Objectives: To describe the quality of life in patients with different clinical types of psoriasis using the 36-item short form of the Medical Outcomes Study questionnaire (SF-36), and to study its correlation with dermatology-specific instruments.

Methods: We conducted a cross-sectional study of 380 inpatients with psoriasis.