[Decision making and consents given by demented patients. Are they valid?]

In Chile, more than 180 thousand people (1% of the population) have some form of dementia. The figure should increase to approximately 600,000 (3% of Chileans) by 2050. This disease poses major challenges to the society. One of them is the effective recognition of the autonomy and responsibility of the person living with this condition. This article aims to review the clinical assessment of competence, its agreement with the Chilean legal system and the challenges that the assessment of competence poses in clinical decision-making and the capacity of an individual make decisions, according to the new international obligations subscribed by Chile. It is concluded that inclusion is a pending challenge, reflected among other things, by the non-compliance with binding rules such as Article 12 of the Convention on the Rights of Persons with Disabilities, which affirms that persons with disabilities have the right to be recognized as a person everywhere, before the law.