Avaliação da Capacidade de Decisão em Psiquiatria de Ligação
2017
Introduction: Decision Capacity Assessment is one of the functions of consultation psychiatry. It involves the ability to make choices autonomously and arises in a relevant way in clinical practice as a precondition to informed consent. Aims: The authors pretend to review the process underlying decision capacity assessment, as well as other relevant information published in this regard. Methods: Non systematic review of the literature, through electronic search in Medline/Pubmed. Results: The ability to decide can only be assessed in relation to a particular decision, and its outcome is not necessarily stable over time. Similarly, there is no single diagnosis that allows concluding for incapacity, nor dispensing its proper evaluation. It depends on various factors like the thought content, thinking process or cognitive functions. It can also be influenced by the individual’s level of edu- cation, personality traits, emotional states/ coping mechanisms or circumstantial factors. Every doctor should be able to carry out this evaluation. The liaison psychiatrist should be involved in case of suspected mental illness that can impair the ability to consent or before the need to validate an assessment already taken. Appelbaum and Grisso proposed a systematic evaluation based on the following criteria: a) communication of choice, b) understanding, c) appreciation and d) rational decision making. In an attempt to minimize differences between evaluators, several assessment instruments were developed, among which the MacArthur Competence Assessment Tool assumes a special focus. Mini Mental State Examination has also been used in patients with cognitive impairment, emerging proposals for correlating the scores obtained with the presence of decision-making. When a patient is unable to decide, it should be respected his best interest, and seek a “replacement decision”, with respect for ethics and the law." Conclusions : A patient who is able to deci- de must present: a) attention focused on the problem; b) ability to consider the different options proposed; c) ability to assess the risks and benefits and d ability to anticipate their possible results.
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