Individuals facing progressive dementia often retain a precise sense of the decline they are prepared to endure. They can voice their preferences, weigh viable options, and formalize their directives in writing. Should the erosion of the ability to reiterate those instructions invalidate them?
Canada is gearing up to confront this issue. On October 23, the country’s Justice Department unveiled proposed rules that would permit adults diagnosed with an incurable illness likely to impair their decision-making to grant advance consent to clinician-assisted death (which Canada terms medical assistance in dying, or MAID). Government ministers will debate the plan on October 27, but passage requires approval from both houses of Parliament and formal assent from the governor general before becoming law. Parliamentary committees may hear testimony and consider amendments along the way. The announcement promises safeguards but provides few specifics. The particulars will determine how well the proposal honors patients’ choices.
A free society recognizes individuals as sovereign over their own bodies, provided they respect the rights of others. That sovereignty includes deciding how much suffering one is willing to bear. A competent adult’s decision deserves respect even when physicians, family members, or public authorities would choose differently.
Competent adults should be free to pursue clinician-assisted suicide or clinician-administered euthanasia, provided they give fully informed, voluntary consent and those aiding them do so willingly. This freedom should encompass planning for the eventual loss of decision-making capacity. A patient’s decline in decisional capacity should not automatically permit the government to override instructions given while the patient remained competent.
Physician-assisted deaths are presently authorized in 13 states and Washington, D.C. Twelve states along with the district enacted laws; Montana permits it under a state Supreme Court ruling. American statutes generally follow the Oregon model: patients must have decision-making capacity, suffer from a terminal illness expected to cause death within six months, and self-administer the medication.
These constraints exclude individuals who endure profound suffering but cannot meet the government’s timetable or physically perform the final act. Progressive dementia introduces another barrier: by the time patients reach the condition they wished to avoid, they may no longer meet the criteria.
In 1999, Michigan convicted Jack Kevorkian of second-degree murder after he administered lethal drugs to Thomas Youk, a patient with amyotrophic lateral sclerosis who had consented to the procedure. As commentators have noted, patients’ bodily autonomy encompasses the right to seek a willing physician’s assistance in ending their lives. Forcing patients to administer the medication themselves deprives those whose illnesses have stripped them of the physical ability to act of that choice. Dementia raises an additional question: can an informed decision survive the loss of the capacity to express it?
Other nations grant patients greater latitude. At least a dozen countries permit some form of assisted dying, though their regulations vary considerably. Canada does not require a terminal prognosis. In the Netherlands, euthanasia is allowed for unbearable suffering with no prospect of improvement, subject to statutory safeguards.
Some countries also recognize advance requests, though under different conditions. In the Netherlands, a written advance request can replace an oral request once a patient loses the ability to express a choice, including in advanced dementia. The remaining legal requirements, including unbearable suffering without prospect of improvement, still apply.
Belgium allows advance requests more narrowly, only when a patient becomes irreversibly unconscious. Patients who lose decision-making capacity due to dementia while remaining conscious cannot obtain euthanasia under an earlier directive.
Respecting a patient’s prior wishes raises difficult questions. How precisely must patients describe the circumstances in which they want assistance? Who decides whether those circumstances have arrived? What happens if a patient who can no longer understand the directive resists the procedure or seems content with life?
Legal scholars, collaborating with clinicians and patients, must help lawmakers answer these questions. Finding the right answers is challenging, but the obstacles are not insurmountable. Lawmakers should devise careful safeguards that honor patients’ choices rather than impose a blanket refusal to honor decisions made while patients were competent.
Patients already use advance directives to refuse life-sustaining treatment after losing decision-making capacity. Authorizing someone to administer a life-ending medication requires additional legal considerations. Yet the principle of planning ahead deserves equal respect: people should retain meaningful influence over what happens to their bodies when illness prevents them from speaking for themselves.
The law has a legitimate role in protecting patients from coercion, fraud, and life-ending procedures they never consented to. Before another person intentionally helps end a patient’s life, the law must require reliable evidence that the patient gave informed, voluntary consent and that the applicable conditions were met. A relative’s preferences or a clinician’s assessment of whether a life remains worth living cannot substitute for the patient’s own decision.
Participation must also remain voluntary. Clinicians and private institutions should be free to decline participation on moral, ethical, or professional grounds. Respect for autonomy extends to all parties involved.
Oversight should focus on ensuring compliance with the law. An independent body could audit cases after the fact, publish anonymized findings, and refer credible violations to investigators. It should not compel patients to obtain bureaucratic approval for individual decisions, nor should it possess the authority to rewrite eligibility standards.
Eligibility should depend on a serious, incurable condition producing enduring, intolerable suffering and on reliable evidence of informed, voluntary consent. A six-month prognosis gives the government excessive power over how long patients must endure suffering they deem intolerable.
Canada’s proposal warrants careful examination once its details are available. A law that honors clear advance directives while protecting patients from violations of those directives would broaden their control over the course of an incurable illness. A framework that lets others substitute their preferences would undermine the autonomy it seeks to safeguard.
Dementia can strip away memories, judgment, and the ability to communicate. The government should not use these losses to erase choices people have freely made while competent. Those who leave clear, informed instructions deserve laws that allow willing clinicians to respect them. Their bodies belong to them, even when they can no longer affirm that fact.
