In DCDD scenarios, what term describes a situation where life-sustaining measures are withdrawn in a controlled environment, leading to predictable circulatory arrest?

The term describing a situation where life-sustaining measures are withdrawn in a controlled environment, leading to predictable circulatory arrest in DCDD scenarios, is Controlled Donation after Circulatory Determination of Death (DCDD). This refers to a planned and ethically guided process. "Controlled DCDD" specifically means that after a patient has been deemed to have an irreversible illness or injury with no chance of recovery, and does not meet the criteria for brain death, their legal decision-makers consent to the withdrawal of medical support with the intent of organ donation following circulatory death. "Life-sustaining measures" are medical interventions like mechanical ventilation, artificial nutrition and hydration, or medications that maintain a person's vital bodily functions when they cannot do so independently. These measures are then "withdrawn in a controlled environment," typically within an operating room or an intensive care unit, where medical staff can ensure the patient's comfort, manage symptoms, and accurately monitor the dying process according to established protocols. This intentional withdrawal of support "leads to predictable circulatory arrest," meaning the patient's heart and breathing are expected to cease permanently within a foreseeable timeframe. Following a legally stipulated period of absent circulation, the patient is declared dead by circulatory criteria, which then allows for the planned recovery of organs for transplantation. This process contrasts with uncontrolled DCDD, where unexpected cardiac arrest occurs outside of a planned withdrawal setting.