[Euthanasia in an advanced state of dementia: a verdict and its reception in the medical world].

The most controversial issue in the Dutch euthanasia practice concerns the performance of euthanasia in a case of a patient in an advanced state of dementia on the basis of a request that is laid down in an advance directive. This is particularly controversial when such a patient, although lacking decisional capacity on the matter, shows signs of a wish to live. In two important verdicts of April 21 2020 the Dutch Supreme Court has ruled that a request that has been made competently cannot be revoked incompetently. In this comment I consider two recent documents from Dutch professional organisations that are contrary to these decisions, in particular a guideline stating that on a proper understanding of decisional capacity the expression of a wish to live of a demented person, however inarticulate, should always be considered to be made competently.