The popularization of the term “clinical death” for the absence of vital signs suggests the possibility of a radical change in our understanding of death. While death used to be considered something that we do not have the power to reverse, contemporary optimism suggests that we may be able to restore life to a dead organism. In this article, I examine how the term “death” is used today to clarify what kind of irreversibility we ought to assign to it. I (...) conclude that the kind of irreversibility closest to our concept of death is one that depends on implicit metaphysical commitments: we generally treat death as though it were metaphysically irreversible, and therefore not reversible by us. (shrink)

Along with the growing utilization of the total artificial heart comes a new set of ethical issues that have, surprisingly, received little attention in the literature: How does one apply the criteria of irreversible cessation of circulatory function given that a TAH rarely stops functioning on its own? Can one appeal to the doctrine of double effect as an ethical rationale for turning off a TAH given that this action directly results in death? And, On what ethical grounds can a (...) physician turn off a TAH in view of the fact that either the intent of such an action or the outcome is always, and necessarily, death? The aim of this article is not to answer these questions but to highlight why these questions must be explored in some depth given the growing use of TAH technology. (shrink)

Protocols for retrieving vital organs in consenting patients in cardiovascular arrest rest on the assumptions that irreversible asystole a) identifies the instant of biological death, and b) is clinically assessable at the time when retrieval of vital organs is possible. Unfortunately both assumptions are flawed. We argue that traditional life/death definitions could be actually inadequate to represent the reality of dying under intensive support, and we suggest redefining NHBD protocols on moral, social, and antrhopological criteria, admitting that irreversible asystole can (...) only equate a clinically determinable point of no return in the process of dying, where organ retrieval can be morally and socially accepted in previously consenting patients. (shrink)

Traditionally, people were recognized as being dead using cardio-respiratory criteria: individuals who had permanently stopped breathing and whose heart had permanently stopped beating were dead. Technological developments in the middle of the twentieth century and the advent of the intensive care unit made it possible to sustain cardio-respiratory and other functions in patients with severe brain injury who previously would have lost such functions permanently shortly after sustaining a brain injury. What could and should physicians caring for such patients do? (...) Significant advances in human organ transplantation also played direct and indirect roles in discussions regarding the care of such patients. Because successful transplantation requires that organs be removed from cadavers shortly after death to avoid organ damage due to loss of oxygen, there has been keen interest in knowing precisely when people are dead so that organs could be removed. Criteria for declaring death using neurological criteria developed, and today a whole brain definition of death is widely used and recognized by all 50 states in the United States as an acceptable way to determine death. We explore the ongoing debate over definitions of death, particularly over brain death or death determined using neurological criteria, and the relationship between definitions of death and organ transplantation. (shrink)

Expressing doubts about death criteria can serve healthy purposes, but can also cause a number of harms, including decreased organ donation rates and distress for donor families and health care staff. This paper explores the various causes of doubts about death criteria—including religious beliefs, misinformation, mistrust, and intellectual questions—and recommends responses to each of these. Some recommended responses are relatively simple and noncontroversial, such as providing accurate information. However, other responses would require significant changes to the way we currently do (...) business. Policymakers should establish minimum national standards for determining death to foster a trustworthy system; academics and publishers have a duty to publish only materials that substantially engage and advance the debate to minimize the harm caused by divided expert opinion; and opposition to the dead donor rule should be conceptually separated from doubts about death criteria. (shrink)