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Zorluk: ZorInformed Consent and Refusal of Care

A 79-year-old man is admitted to the hospital with wet gangrene of his left foot and ascending cellulitis. He has a history of advanced Alzheimer disease and is currently disoriented, agitated, and unable to comprehend his medical situation. The surgical team determines that without a below-the-knee amputation, the infection will rapidly progress to fatal sepsis.

The patient has a comprehensive advance directive, completed six years ago when he was fully competent. The document explicitly states that he refuses any life-prolonging surgical interventions, including amputations, if he develops severe, irreversible cognitive impairment and is unable to recognize his family. His primary care physician confirms that his current cognitive state is irreversible and meets the clinical criteria outlined in his directive.

His eldest son, who is his legally appointed healthcare proxy (Durable Power of Attorney for Healthcare), arrives at the hospital. The son is distraught and states, "I have read his living will, and I know he always said he would rather die than live with severe dementia. But I cannot just let him die from an infection when a surgery could save him. As his appointed proxy, I authorize the amputation."

Which of the following is the most appropriate next step in management?

  1. A
    Proceed with the amputation, as the legally appointed healthcare proxy holds ultimate decision-making authority
  2. B
    Request an emergency court order to formally revoke the son's status as healthcare proxy
  3. C
    Wait for the patient's acute agitation to resolve in order to reassess his decision-making capacity
  4. D
    Share the patient's prognosis with his other children to obtain a family consensus on proceeding with surgery
  5. Withhold the amputation and provide appropriate palliative care in accordance with the advance directiveCevap

Cevap

Withhold the amputation and provide appropriate palliative care in accordance with the advance directive
The correct action is to withhold the amputation and provide palliative care. In clinical ethics, when a patient loses decision-making capacity, their previously expressed autonomous wishes must be honored. An advance directive (living will) is a legal document that codifies these wishes. A healthcare proxy (Durable Power of Attorney for Healthcare) is appointed to make decisions on the patient's behalf using the principle of substituted judgment—meaning they must choose what the patient would have chosen. If a proxy explicitly demands care that directly contradicts a clear, applicable advance directive, the proxy's demands are ethically and legally invalid. The physician is obligated to follow the advance directive, which represents the patient's true autonomous voice.

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1
Assess the patient's decision-making capacity.
The patient lacks capacity due to advanced Alzheimer disease and acute delirium.
Determining capacity is the first step in obtaining informed consent or validating refusal of care.
2
Identify the existence of an advance directive or legally appointed surrogate.
The patient has both a clear written advance directive and a legally appointed healthcare proxy (his son).
When a patient lacks capacity, earlier directives or a designated surrogate must guide medical decisions.
3
Evaluate conflicts between the advance directive and the surrogate's demands.
The surrogate explicitly acknowledges the patient's written wishes but demands opposite treatment based on his own emotional distress.
Surrogates must use substituted judgment. If they explicitly violate a clear advance directive, their decision is ethically invalid.
4
Determine the most appropriate legal and ethical clinical action.
Honor the advance directive, withhold the surgery, and initiate palliative care.
A valid, applicable advance directive represents the patient's autonomous choice and supersedes a proxy's contradictory demands.

Anahtar Kavram

An explicit, applicable advance directive (living will) takes absolute precedence over the contradictory demands of a healthcare proxy or family members when the patient lacks decision-making capacity.
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Konular

Informed Consent and Refusal of Care

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