Summary: A new review finds that 34 of 41 influential organizations (83%) support updates to the U.S. Uniform Determination of Death Act. The 1981 law, which defines death as the irreversible cessation of either whole brain or cardiopulmonary function, is under renewed scrutiny as experts call for clearer alignment between law and current medical practice.
Researchers and clinicians say the legal definition should reflect contemporary medical standards for death by neurological criteria and remove requirements that are not used in clinical practice—specifically, the notion that loss of hormone production must be demonstrated to declare brain death. The survey also highlights a clear divide between medical groups and some patient advocacy and religious organizations over whether families should be able to prevent removal of mechanical ventilation after a brain-dead diagnosis.
Key Facts:
- Historically, death was recognized when the heart stopped and breathing ceased, but the advent of mechanical ventilation changed how death is determined, leading to the Uniform Determination of Death Act in 1981.
- The Act defines death as either irreversible cessation of all brain functions or cardiopulmonary function, but it does not specify which medical tests or criteria are required to make that legal determination. A few states also permit religious objections that can delay withdrawal of life support.
- Dr. Ariane Lewis and others argue the Act should explicitly adopt national and international medical standards for brain death—standards that do not require proving loss of hormone secretion as part of the diagnosis.
Source: NYU Langone
After reviewing comments from 41 advocacy, medical, and transplant-oriented organizations, a brain injury expert urges reforms to the legal definition of death in the United States.
The Uniform Law Commission, which had been working on revisions to the Death Act, announced a pause in its efforts; experts say that delay should not prevent practical fixes to clear and long-standing problems in the statute.
“This study shows that most medical organizations support revisions of the Uniform Determination of Death Act to align the legal description of the neurological criteria for death with medical standards,” said Ariane Lewis, MD, a neurocritical care specialist and professor in the Departments of Neurology and Neurosurgery at NYU Grossman School of Medicine.
Lewis emphasizes that the law should mirror medical guidelines, which identify specific clinical and laboratory tests for determining brain death and do not include the loss of hormone secretion as a required element. She also urges the statute to provide clearer legal guidance for clinicians when families object to discontinuing mechanically assisted breathing in patients already declared brain dead.
One important legal gap is how long a hospital may continue ventilatory support when a family objects to withdrawal on religious or ethical grounds. The Act currently lacks explicit guidance on whether such support may be continued indefinitely, temporarily, or must be discontinued after a defined period.
Lewis’s review found strong overall support for revising the Death Act: 34 organizations (83%) favored updates, but opinions diverged on how to change the law. Some religious and patient advocacy groups continue to favor defining death by traditional cardiopulmonary criteria and want family consent required before stopping mechanical ventilation. Medical organizations generally oppose such a requirement, arguing it would conflict with accepted medical practice and standards for brain death determination.
Lewis, who is also director of neurocritical care at NYU Langone Health, shared the survey findings and her recommendations with the Uniform Law Commission before its September suspension of the amendment process. She has been one of approximately 100 observers advising the commission over the past three years.
The study, published online Oct. 25 in the journal Neurocritical Care, analyzed comments submitted to the commission between January and July 2023 from 41 organizations affected by the Death Act. The analysis focused on how these stakeholders view key questions about legal standards, clinical testing, and family rights when brain death is declared.
Under current medical practice, the diagnosis of brain death relies on established clinical examinations and, when needed, ancillary tests; these professional guidelines—issued by groups such as the American Academy of Neurology and critical care societies—do not require measurement of brain hormone outputs as part of the standard declaration. Lewis argues that keeping hormone loss in the legal definition creates ambiguity and relies on a physiological measurement for which no standard clinical test has been widely adopted.
“Without revisions, it remains unclear what tests are legally required to declare someone brain dead, and physicians and families lack clear legal guidance when disputes arise,” Lewis said. The commission’s pause reduces the chance of a near-term consensus, leaving unresolved tensions between medical standards and religious or advocacy positions.
About this neuroscience and death research news
Author: David March ([email protected])
Source: NYU Langone
Contact: David March – NYU Langone
Image: Image credited to Neuroscience News
Original Research: The findings were published in Neurocritical Care.