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1.
J Med Ethics ; 2024 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-38184371

RESUMO

The UK government has recently committed to adopting a new policy-dubbed 'Martha's Rule'-which has been characterised as providing patients the right to rapidly access a second clinical opinion in urgent or contested cases. Support for the rule emerged following the death of Martha Mills in 2021, after doctors failed to admit her to intensive care despite concerns raised by her parents. We argue that framing this issue in terms of patient rights is not productive, and should be avoided. Insofar as the ultimate goal of Martha's Rule is the provision of a clinical service that protects patient safety, an approach that focuses on the obligations of the health system-rather than the individual rights of patients-will better serve this goal. We outline an alternative approach that situates rapid clinical review as part of a suite of services aimed at enhancing and protecting patient care. This approach would make greater progress towards addressing the difficult systemic issues that Martha's Rule does not, while also better engaging with the constraints of clinical practice.

2.
J Med Ethics ; 49(7): 515-522, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34330796

RESUMO

Powered by 'big health data' and enormous gains in computing power, artificial intelligence and related technologies are already changing the healthcare landscape. Harnessing the potential of these technologies will necessitate partnerships between health institutions and commercial companies, particularly as it relates to sharing health data. The need for commercial companies to be trustworthy users of data has been argued to be critical to the success of this endeavour. I argue that this approach is mistaken. Our interactions with commercial companies need not, and should not, be based on trust. Rather, they should be based on confidence. I begin by elucidating the differences between trust, reliability, and confidence, and argue that trust is not the appropriate attitude to adopt when it comes to sharing data with commercial companies. I argue that what we really should want is confidence in a system of data sharing. I then provide an outline of what a confidence-worthy system of data sharing with commercial companies might look like, and conclude with some remarks about the role of trust within this system.


Assuntos
Confidencialidade , Privacidade , Humanos , Inteligência Artificial , Confiança , Reprodutibilidade dos Testes
3.
Camb Q Healthc Ethics ; 31(4): 498-505, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36398509

RESUMO

A general obligation to make aggregate research results available to participants has been widely supported in the bioethics literature. However, dementia research presents several challenges to this perspective, particularly because of the fear associated with developing dementia. The authors argue that considerations of respect for persons, beneficence, and justice fail to justify an obligation to make aggregate research results available to participants in dementia research. Nevertheless, there are positive reasons in favor of making aggregate research results available; when the decision is made to do so, it is critical that a clear strategy for communicating results is developed, including what support will be provided to participants receiving aggregate research results.


Assuntos
Demência , Justiça Social , Humanos , Beneficência , Medo
4.
J Med Ethics ; 47(10): 689-696, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33441306

RESUMO

A rapidly growing proportion of health research uses 'secondary data': data used for purposes other than those for which it was originally collected. Do researchers using secondary data have an obligation to disclose individual research findings to participants? While the importance of this question has been duly recognised in the context of primary research (ie, where data are collected from participants directly), it remains largely unexamined in the context of research using secondary data. In this paper, we critically examine the arguments for a moral obligation to disclose individual research findings in the context of primary research, to determine if they can be applied to secondary research. We conclude that they cannot. We then propose that the nature of the relationship between researchers and participants is what gives rise to particular moral obligations, including the obligation to disclose individual results. We argue that the relationship between researchers and participants in secondary research does not generate an obligation to disclose. However, we also argue that the biobanks or data archives which collect and provide access to secondary data may have such an obligation, depending on the nature of the relationship they establish with participants.


Assuntos
Obrigações Morais , Pesquisadores , Humanos
5.
J Med Philos ; 46(6): 729-757, 2021 Dec 02.
Artigo em Inglês | MEDLINE | ID: mdl-34655220

RESUMO

Patients with severe disorders of consciousness are thought to be unaware of themselves or their environment. However, research suggests that a minority of patients diagnosed as having a disorder of consciousness remain aware. These patients, designated as having "cognitive motor dissociation" (CMD), can demonstrate awareness by imagining specific tasks, which generates brain activity detectable via functional neuroimaging. The discovery of consciousness in these patients raises difficult questions about their well-being, and it has been argued that it would be better for these patients if they were allowed to die. Conversely, I argue that CMD patients may have a much higher level of well-being than is generally acknowledged. It is far from clear that their lives are not worth living, because there are still significant gaps in our understanding of how these patients experience the world. I attempt to fill these gaps, by analyzing the neuroscientific research that has taken place with these patients to date. Having generated as comprehensive a picture as possible of the capacities of CMD patients, I examine this picture through the lens of traditional philosophical theories of well-being. I conclude that the presumption that CMD patients do not have lives worth living is not adequately supported.


Assuntos
Estado de Consciência , Humanos
6.
Camb Q Healthc Ethics ; 30(4): 613-622, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34702410

RESUMO

Disorders of consciousness (DOC) continue to profoundly challenge both families and medical professionals. Once a brain-injured patient has been stabilized, questions turn to the prospect of recovery. However, what "recovery" means in the context of patients with prolonged DOC is not always clear. Failure to recognize potential differences of interpretation-and the assumptions about the relationship between health and well-being that underlie these differences-can inhibit communication between surrogate decisionmakers and a patient's clinical team, and make it difficult to establish the goals of care. The authors examine the relationship between health and well-being as it pertains to patients with prolonged DOC. They argue that changes in awareness or other function should not be equated to changes in well-being, in the absence of a clear understanding of the constituents of well-being for that particular patient. The authors further maintain that a comprehensive conception of recovery for patients with prolonged DOC should incorporate aspects of both experienced well-being and evaluative well-being.


Assuntos
Lesões Encefálicas , Transtornos da Consciência , Encéfalo , Estado de Consciência , Humanos
7.
Qual Life Res ; 29(5): 1217-1227, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31838655

RESUMO

PURPOSE: To generate foundational knowledge in the creation of a quality-of-life instrument for patients who are clinically diagnosed as being in a vegetative or minimally conscious state but are able to communicate by modulating their brain activity (i.e., behaviourally nonresponsive and covertly aware). The study aimed to identify a short list of key domains that could be used to formulate questions for an instrument that determines their self-reported quality of life. METHODS: A novel two-pronged strategy was employed: (i) a scoping review of quality-of-life instruments created for patient populations sharing some characteristics with patients who are behaviourally nonresponsive and covertly aware was done to compile a set of potentially relevant domains of quality of life; and (ii) a three-round Delphi consensus process with a multidisciplinary panel of experts was done to determine which of the identified domains of quality of life are most important to those who are behaviourally nonresponsive and covertly aware. Five expert groups were recruited for this study including healthcare workers, neuroscientists, bioethicists, quality-of-life methodologists, and patient advocates. RESULTS: Thirty-five individuals participated in the study with an average response rate of 95% per round. Over the three rounds, experts reached consensus on 34 of 44 domains (42 domains were identified in the scoping review and two new domains were added based on suggestions by experts). 22 domains were rated as being important for inclusion in a quality-of-life instrument and 12 domains were deemed to be of less importance. Participants agreed that domains related to physical pain, communication, and personal relationships were of primary importance. Based on subgroup analyses, there was a high degree of consistency among expert groups. CONCLUSIONS: Quality of life should be a central patient-reported outcome in all patient populations regardless of patients' ability to communicate. It remains to be determined how covertly aware patients perceive their circumstances and quality of life after suffering a life-altering injury. Nonetheless, it is important that any further dialogue on what constitutes a life worth living should not occur without direct patient input.


Assuntos
Transtornos da Consciência/diagnóstico , Medidas de Resultados Relatados pelo Paciente , Qualidade de Vida/psicologia , Adulto , Transtornos da Consciência/psicologia , Feminino , Humanos , Masculino , Autorrelato
8.
Bioethics ; 34(6): 612-619, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32124448

RESUMO

Prognosis after severe brain injury is highly uncertain, and decisions to withhold or withdraw life-sustaining treatment are often made prematurely. These decisions are often driven by a desire to avoid a situation where the patient becomes 'trapped' in a condition they would find unacceptable. However, this means that a proportion of patients who would have gone on to make a good recovery, are allowed to die. I propose a shift in practice towards the routine provision of aggressive care, even in cases where the probability of survival and acceptable recovery is thought to be low. In conjunction with this shift, I argue in favour of a presumption towards withdrawing life-sustaining treatment, including artificial nutrition and hydration, when it becomes clear that a patient will not recover to a level that would be acceptable to them. I then respond to three potential objections to this proposal.


Assuntos
Lesões Encefálicas/diagnóstico , Tomada de Decisões , Cuidados para Prolongar a Vida/ética , Suspensão de Tratamento/ética , Humanos , Prognóstico , Incerteza
9.
Camb Q Healthc Ethics ; 29(4): 511-526, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32892770

RESUMO

Patients with disorders of consciousness after severe brain injury need surrogate decision makers to guide treatment decisions on their behalf. Formal guidelines for surrogate decisionmaking generally instruct decision makers to first appeal to a patient's written advance directive, followed by making a substituted judgment of what the patient would have chosen, and lastly, to make decisions according to what seems to be in the patient's best medical interests. Substituted judgment is preferable because it is taken to preserve patient autonomy, by using a patient's past wishes and values to reconstruct what they would have chosen for themselves. In this paper, the author argues that for a certain population of patients, the standard interpretation of substituted judgment cannot ensure the preservation of patient autonomy. Patients with "covert awareness" may continue to have values and an authentic sense of self, which may differ from their past values and wishes. Accordingly, surrogate decision makers should make decisions based on how the patient is likely to experience their condition in the present, rather than their past wishes and values.


Assuntos
Diretivas Antecipadas , Lesões Encefálicas , Estado de Consciência , Tomada de Decisões , Humanos , Julgamento
10.
Camb Q Healthc Ethics ; 29(4): 501-510, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32892783

RESUMO

A growing number of studies show that a significant proportion of patients, who meet the clinical criteria for the diagnosis of the vegetative state (VS), demonstrate evidence of covert awareness through successful performance of neuroimaging tasks. Despite these important advances, the day-to-day life experiences of any such patient remain unknown. This presents a major challenge for optimizing the patient's standard of care and quality of life (QoL). We describe a patient who, following emergence from a state of complete behavioral unresponsiveness and a clinical diagnosis of VS, reported rich memories of his experience during this time. This case demonstrates the potential for a sophisticated mental life enabled by preserved memory in a proportion of patients who, similarly, are thought to be unconscious. Therefore, it presents an important opportunity to examine the implications for patient QoL and standard of care, both during the period of presumed unconsciousness and after recovery.


Assuntos
Estado Vegetativo Persistente , Qualidade de Vida , Humanos , Neuroimagem , Estado Vegetativo Persistente/diagnóstico
11.
J Med Ethics ; 45(5): 299-303, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30803985

RESUMO

Functional MRI shows promise as a candidate prognostication method in acutely comatose patients following severe brain injury. However, further research is needed before this technique becomes appropriate for clinical practice. Drawing on a clinical case, we investigate the process of obtaining informed consent for this kind of research and identify four ethical issues. After describing each issue, we propose potential solutions which would make a patient's participation in research compatible with her rights and interests. First, we defend the need for traditional proxy consent against two alternative approaches. Second, we examine the impact of the intensive care unit environment on the informed consent process. Third, we discuss the therapeutic misconception and its potential influence on informed consent. Finally, we deal with issues of timing in recruiting participants and related factors which may affect the risks of participation.


Assuntos
Pesquisa Biomédica/ética , Lesões Encefálicas/fisiopatologia , Coma/fisiopatologia , Consentimento Livre e Esclarecido/psicologia , Sujeitos da Pesquisa , Humanos , Imageamento por Ressonância Magnética , Autonomia Pessoal , Mal-Entendido Terapêutico
12.
Camb Q Healthc Ethics ; 28(4): 616-631, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31526429

RESUMO

Long-term patient outcomes after severe brain injury are highly variable, and reliable prognostic indicators are urgently needed to guide treatment decisions. Functional neuroimaging is a highly sensitive method of uncovering covert cognition and awareness in patients with prolonged disorders of consciousness, and there has been increased interest in using it as a research tool in acutely brain injured patients. When covert awareness is detected in a research context, this may impact surrogate decisionmaking-including decisions about life-sustaining treatment-even though the prognostic value of covert consciousness is currently unknown. This paper provides guidance to clinicians and families in incorporating individual research results of unknown prognostic value into surrogate decisionmaking, focusing on three potential issues: (1) Surrogate decisionmakers may misinterpret results; (2) Results may create false hope about the prospects of recovery; (3) There may be disagreement about the meaningfulness or relevance of results, and appropriateness of continued care.


Assuntos
Conscientização , Transtornos da Consciência/diagnóstico por imagem , Tomada de Decisões/ética , Estado Vegetativo Persistente/diagnóstico por imagem , Lesões Encefálicas/fisiopatologia , Neuroimagem Funcional , Humanos , Estado Vegetativo Persistente/fisiopatologia , Prognóstico
13.
Semin Neurol ; 38(5): 555-560, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30321894

RESUMO

Robust prognostic indicators of neurological recovery are urgently needed for acutely comatose patients. Functional neuroimaging is a highly sensitive tool for uncovering covert cognition and awareness in behaviorally nonresponsive patients with prolonged disorders of consciousness, and may be applicable to acutely comatose patients. Establishing a link between early detection of covert awareness in acutely comatose patients and eventual recovery of function could have significant implications for patient prognosis, treatment, and end-of-life decisions. Because functional neuroimaging of acutely comatose patients is currently limited to the research context, ethical guidelines for disseminating a patient's individual research results to clinical teams and surrogate decision makers are needed. We propose an ethical framework composed of four conditions that can guide ethical disclosure of individual results of neuroimaging research in the acute care context.


Assuntos
Lesões Encefálicas/terapia , Coma/terapia , Transtornos da Consciência/terapia , Tomada de Decisões/fisiologia , Neuroimagem , Lesões Encefálicas/complicações , Coma/fisiopatologia , Estado de Consciência/fisiologia , Transtornos da Consciência/diagnóstico , Humanos , Neuroimagem/efeitos adversos
18.
J Med Ethics ; 41(7): 534-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25079068

RESUMO

Recent findings in cognitive neuroscience have revealed that some patients previously diagnosed as being in a vegetative state may retain some degree of covert awareness. However, it is unclear whether such findings should be disclosed to the families of these patients. Concerns about the preservation of scientific validity, reliability of results and potential harms associated with disclosure suggest that individual research results should be disclosed only under certain conditions. In the following paper, we offer four criteria for the disclosure of individual research results. Because the results of functional neuroimaging studies to detect covert awareness in vegetative patients are scientifically valid, informative and reasonably reliable and have considerable potential benefit for the patient, researchers have an obligation to disclose such results to family members. Further work is needed to develop educational materials for families and to systematically study the impact of disclosure on the families themselves.


Assuntos
Conscientização , Pesquisa Biomédica/ética , Revelação/ética , Família/psicologia , Estado Vegetativo Persistente/psicologia , Feminino , Guias como Assunto , Humanos , Masculino , Neuroimagem , Reprodutibilidade dos Testes
20.
BMC Med Ethics ; 15: 41, 2014 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-24885720

RESUMO

BACKGROUND: Patient outcome after serious brain injury is highly variable. Following a period of coma, some patients recover while others progress into a vegetative state (unresponsive wakefulness syndrome) or minimally conscious state. In both cases, assessment is difficult and misdiagnosis may be as high as 43%. Recent advances in neuroimaging suggest a solution. Both functional magnetic resonance imaging and electroencephalography have been used to detect residual cognitive function in vegetative and minimally conscious patients. Neuroimaging may improve diagnosis and prognostication. These techniques are beginning to be applied to comatose patients soon after injury. Evidence of preserved cognitive function may predict recovery, and this information would help families and health providers. Complex ethical issues arise due to the vulnerability of patients and families, difficulties interpreting negative results, restriction of communication to "yes" or "no" answers, and cost. We seek to investigate ethical issues in the use of neuroimaging in behaviorally nonresponsive patients who have suffered serious brain injury. The objectives of this research are to: (1) create an approach to capacity assessment using neuroimaging; (2) develop an ethics of welfare framework to guide considerations of quality of life; (3) explore the impact of neuroimaging on families; and, (4) analyze the ethics of the use of neuroimaging in comatose patients. METHODS/DESIGN: Our research program encompasses four projects and uses a mixed methods approach. Project 1 asks whether decision making capacity can be assessed in behaviorally nonresponsive patients. We will specify cognitive functions required for capacity and detail their assessment. Further, we will develop and pilot a series of scenarios and questions suitable for assessing capacity. Project 2 examines the ethics of welfare as a guide for neuroimaging. It grounds an obligation to explore patients' interests, and we explore conceptual issues in the development of a quality of life instrument adapted for neuroimaging. Project 3 will use grounded theory interviews to document families' understanding of the patient's condition, expectations of neuroimaging, and the impact of the results of neuroimaging. Project 4 will provide an ethical analysis of neuroimaging to investigate residual cognitive function in comatose patients within days of serious brain injury.


Assuntos
Lesões Encefálicas/fisiopatologia , Cognição , Coma/fisiopatologia , Neuroimagem/ética , Estado Vegetativo Persistente/fisiopatologia , Qualidade de Vida , Tomada de Decisões/ética , Eletroencefalografia/ética , Potenciais Evocados , Família , Feminino , Humanos , Imageamento por Ressonância Magnética/ética , Masculino , Prognóstico , Recuperação de Função Fisiológica , Índice de Gravidade de Doença
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