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- Douglas N. Walton (1981). Epistemology of Brain Death Determination. Theoretical Medicine and Bioethics 2 (3):259-274.This article assesses what standards of safety and certainty of diagnosis need to be met in the determination of brain death. Recent medical, legal, and philosophical developments on brain death are summarized. It is argued that epistemologically adequate standards require the finding of whole-brain death rather than destruction of the cortex. Because of the possibility of positive error in misdiagnosing death, a tutioristic approach of being on the safe side is advocated. Given uncertainties in diagnosis of so-called vegetative states like the apallic syndrome, anything less than whole-brain death, especially given the present state of diagnostic capability, should not qualify as an argument for removing therapy specifically on grounds that the patient is dead.
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Many accounts of the historical development of neurological criteria for determination of death insufficiently distinguish between two strands of interpretation advanced by advocates of a "whole-brain" criterion. One strand focuses on the brain as the organ of integration. Another provides a far more complex and nuanced account, both of death and of a policy on the determination of death. Current criticisms of the whole-brain criterion are effective in refuting the first interpretation, but not the second, which is advanced in the 2008 President's Council report on the determination of death. In this essay, I seek to further develop this second strand of interpretation. I argue that policy on determination of death aligns moral, biological, and ontological death concepts. Morally, death marks the stage when respect is no longer owed. Biologically, death concerns integrated functioning of an organism as a whole. But the biological concepts are underdetermined. The moral concerns lead to selection of strong individuality concepts rather than weak ones. They also push criteria to the "far side" of the dying process. There is a countervailing consideration associated with optimizing the number of available organs, and this pushes to the "near side" of death. Policy is governed by a conviction that it is possible to align these moral and biological death concepts, but this conviction simply lays out an agenda. There is also a prescription—integral to the dead donor rule—that lexically prioritizes the deontic concerns and that seeks to balance the countervailing tendencies by using science-based refinements to make the line between life and death more precise. After showing how these concerns have been effectively aligned in the current policy, I present a modified variant of a "division" scenario and show how an "inverse decapitation problem" leads to a conclusive refutation of the nonbrain account of death.
Philosophers have simplified brain death issues by drawing two distinctions--that between dead persons and dead bodies or organisms, and that between the concept of definition of death and the criteria for determining when and that death has occurred. The result has been protracted debates as to whether the death of patients is the death of persons or the death of organisms, and whether physicians should use cardio-respiratory criteria, whole brain criteria, or higher brain criteria. Advocates of the death of persons prefer higher brain criteria; advocates of the death of organisms prefer cardiovascular criteria; but both will compromise, for different reasons, on the whole brain criteria that most legislators have come to accept. Advocates of person-death regard whole brain criteria as unnecessarily demanding and woefully wasteful of transplantable organs and nursing care. Nonetheless, they accept current whole-brain based legislation as a first neurological step away from traditional cardio-respiratory.
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Legally defining “death” in terms of brain death unacceptably obscures a value judgment that not all reasonable people would accept. This is disingenuous, and it results in serious moral flaws in the medical practices surrounding organ donation. Public policy that relies on the whole-brain concept of death is therefore morally flawed and in need of revision.
: Most of the world now accepts the idea, first proposed four decades ago, that death means "brain death." But the idea has always been open to criticism because it doesn't square with all of our intuitions about death. In fact, none of the possible definitions of death quite works. Death, perhaps surprisingly, eludes definition, and "brain death" can be accepted only as a refinement of what is in fact a fuzzy concept.
The whole brain-death criterion of death now enjoys a wide acceptance both within the medical profession and among the general public. That acceptance is in large part the product of the contention that brain death is the proper criterion for even a conservative definition of death – the irreversible loss of the integrated functioning of the organism as a whole. This claim – most recently made in the report of the Presidential Commission and in a comprehensive article by James Bernat and others – is based upon a series of fallacious arguments. Chief among these is the argument that whole brain-death is the proper criterion for the conservative definition because the brain is the organ that integrates the rest of the organism. A central part of the paper shows that this argument rests upon a confusion between a function and the mechanism that performs it, and replies to the defenses that the Presidential Commission makes on this point. The concluding portion of the paper argues that this issue is not merely of academic interest, but has the potential for undermining the present consensus that supports the use of whole brain-death criteria. * Keywords: brain-death, definition of death, determination of death * I would like to thank Howard Brody and Bruce Miller for helpful suggestions and criticisms. CiteULike Connotea Del.icio.us What's this?
The role of EEG in confirming the clinical diagnosis of isolated brain death has undergone evolutionary changes since the original recommendations concerning its use. Accumulated evidence now supports that approach that the EEG can be used not only as a confirmatory test for brain death, but one which considerably facilitates making the diagnosis. Using the EEG, brain death can often be identified with absolute certainty within just a few, rather than the previously recommended 24 or more hours after a known precipitating event. Guidelines to this effect have now been established.
Definitions of death are based on subjective standards, priorities, and social conventions rather than on objective facts about the state of human physiology. It is the meaning assigned to the facts that determines whensomeone may be deemed to have died, not the facts themselves. Even though subjective standards for the diagnosis of death show remarkable consistency across communities, they are extrinsic. They are driven, implicitly or explicitly, by ideas about what benefits the community rather than what benefits the indidvidual. The differences that do exist across communities generally reduce to questions about legitimacy and not fact. The questions at the core of the debate about brain death are better framed by asking: Whom ought we deem to be dead? rather than: Who is dead. The rationale for equating brain death with death, therefore, extends well beyond somatic and biological concepts of death.
in Western cultures in regard to post-mortem organ donation and the termination of care for patients meeting these strict criteria. But they are of minimal use in Asian cultures and in the ethics of caring for the persistent vegetative patient. This paper introduces a formula for a global Uniform Determination of Death statute, based on the ‘entire brain including brain stem’ criteria as a default position, but allowing competent adults by means of advance directives to choose other criteria for determining death during the process of dying. Keywords: euthanasia, brain death criteria, higher brain death criteria, individual choice, multicultural society, self-determination CiteULike Connotea Del.icio.us What's this?
Brain death is accepted in most countries as death. The rationales to explain why brain death is death are surprisingly problematic. The standard rationale that in brain death there has been loss of integrative unity of the organism has been shown to be false, and a better rationale has not been clearly articulated. Recent expert defences of the brain death concept are examined in this paper, and are suggested to be inadequate. I argue that, ironically, these defences demonstrate the lack of a defensible rationale for why brain death should be accepted as death itself. If brain death is death, a conceptual rationale for brain death being equivalent to death should be clarified, and this should be done urgently.
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