The document deals with some ethical issues raised by the treatment of demented people. In particular the conceptual and empirical aspects of the assessment of awareness and competence of these patients are analysed, as well as the dilemmas related to the treatment of behavioral disorders.

Dementia is a terminal disease, associated with great suffering and difficult decisions in the severe stage. The decision-making process is characterized by uncertainty because of lack of scientific evidence in treatments and by the need to reconcile conflicting points of view. In intercurrent diseases, aggressive interventions are used without consideration of its futility; in comparison with cancer, several consequences of physicians' attitude not to consider dementia as a terminal disease have been reported, especially concerning pain relief. Lack of evidence of artificial nutrition and hydration effectiveness makes advance care planning relevant.

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