Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.981
Filtrar
2.
Perspect Biol Med ; 67(1): 1-21, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38662060

RESUMO

According to the mainstream bioethical stance, death constitutes the termination of an organism. This essay argues that such an understanding of death is inappropriate in the usual context of determining death, since it also has a social bearing. There are two reasons to justify this argument. First, the mainstream bioethical definition generates an organismal superposition challenge, according to which a given patient in a single physiological state might be both alive and dead, like Schrödinger's cat. Therefore, there is no clear answer as to whether organ retrieval from a brain-dead patient is an act of killing or not. Second, when combined with the dead donor rule, the mainstream position in the definition of death might lead to ethically unacceptable verdicts, since there is a discrepancy between terminating an organism and depriving someone of moral status.


Assuntos
Morte Encefálica , Morte , Humanos , Morte Encefálica/diagnóstico , Obtenção de Tecidos e Órgãos/ética
4.
Curr Opin Organ Transplant ; 29(3): 212-218, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38483113

RESUMO

PURPOSE OF REVIEW: The adoption of brain death played a crucial role in the development of organ transplantation, but the concept has become increasingly controversial. This essay will explore the current state of the controversy and its implications for the field. RECENT DEVELOPMENTS: The brain death debate, long limited to the bioethics community, has in recent years burst into the public consciousness following several high-profile cases. This has culminated in the reevaluation of the Uniform Determination of Death Act (UDDA), which is in the process of being updated. Any change to the UDDA has the potential to significantly impact the availability of organs. SUMMARY: The current update to the UDDA introduces an element of uncertainty, one the brain death debate had not previously had.


Assuntos
Morte Encefálica , Transplante de Órgãos , Obtenção de Tecidos e Órgãos , Humanos , Transplante de Órgãos/ética , Transplante de Órgãos/efeitos adversos , Obtenção de Tecidos e Órgãos/ética , Obtenção de Tecidos e Órgãos/legislação & jurisprudência , Doadores de Tecidos/provisão & distribuição , Doadores de Tecidos/ética
5.
J Heart Lung Transplant ; 43(6): 1021-1029, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38432523

RESUMO

In a workshop sponsored by the U.S. National Heart, Lung, and Blood Institute, experts identified current knowledge gaps and research opportunities in the scientific, conceptual, and ethical understanding of organ donation after the circulatory determination of death and its technologies. To minimize organ injury from warm ischemia and produce better recipient outcomes, innovative techniques to perfuse and oxygenate organs postmortem in situ, such as thoracoabdominal normothermic regional perfusion, are being implemented in several medical centers in the US and elsewhere. These technologies have improved organ outcomes but have raised ethical and legal questions. Re-establishing donor circulation postmortem can be viewed as invalidating the condition of permanent cessation of circulation on which the earlier death determination was made and clamping arch vessels to exclude brain circulation can be viewed as inducing brain death. Alternatively, TA-NRP can be viewed as localized in-situ organ perfusion, not whole-body resuscitation, that does not invalidate death determination. Further scientific, conceptual, and ethical studies, such as those identified in this workshop, can inform and help resolve controversies raised by this practice.


Assuntos
Morte , Obtenção de Tecidos e Órgãos , Humanos , Obtenção de Tecidos e Órgãos/métodos , Obtenção de Tecidos e Órgãos/ética , Estados Unidos , National Heart, Lung, and Blood Institute (U.S.) , Transplante de Pulmão , Doadores de Tecidos , Preservação de Órgãos/métodos , Transplante de Coração
8.
J Bioeth Inq ; 20(1): 139-152, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36807753

RESUMO

Kidney markets are prohibited in principle because they are assumed to undermine the seller's dignity. Considering the trade-off between saving more lives by introducing regulated kidney markets and preserving the seller's dignity, we argue that it is advisable to demand that citizens restrain their own moral judgements and not interfere with the judgements of those who are willing to sell a kidney. We also argue that it is advisable not only to limit the political implications of the moral argument of dignity concerns toward a market-based solution but also to re-evaluate the dignity argument itself. First, if the dignity argument is to be given normative force, it must also consider the dignity violation of the potential transplant recipient. Second, there seems to be no compelling notion of dignity that demonstrates why it is morally permissible to donate but not to sell a kidney.


Assuntos
Transplante de Rim , Rim , Princípios Morais , Coleta de Tecidos e Órgãos , Obtenção de Tecidos e Órgãos , Humanos , Obtenção de Tecidos e Órgãos/ética , Coleta de Tecidos e Órgãos/ética , Comércio , Respeito
9.
Perspect Biol Med ; 66(1): 195-209, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38662016

RESUMO

This article provides an in-depth ethical analysis of living donor uterus transplantation, incorporating clinical, psychological, and qualitative study data into the discussion. Although the concept of living organ donors as patients in their own right has not always been present in the field of transplantation, this conceptualization informs the framework for living donor ethics that we apply to living uterus donation. This framework takes root in the principles of research ethics, which include respect for persons, beneficence, and justice. It incorporates an analysis based on eight potential vulnerabilities of living donors: capacitational, juridic, deferential, social, medical, situational, allocational, and infrastructural. Finally, it recognizes that special relationships-such as that of the living donor advocate with the potential donor-require special responsibilities, including identifying vulnerabilities and engaging donors in a shared decision-making process. Directed and non-directed uterus donors require separate ethical analyses because their different relationships with recipients will influence the types of vulnerabilities, they are subject to as well as the potential benefits they may gain from donation.


Assuntos
Doadores Vivos , Útero , Humanos , Feminino , Útero/transplante , Doadores Vivos/ética , Transplante de Órgãos/ética , Obtenção de Tecidos e Órgãos/ética
11.
Camb Q Healthc Ethics ; 31(3): 297-309, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35899548

RESUMO

Organ shortage is a major survival issue for millions of people worldwide. Globally 1.2 million people die each year from kidney failure. In this paper, we critically examine and find lacking extant proposals for increasing organ supply, such as opting in and opt out for deceased donor organs, and parochial altruism and paired kidney exchange for live organs. We defend two ethical solutions to the problem of organ shortage. One is to make deceased donor organs automatically available for transplant without requiring consent from the donor or their relatives. The other is for society to buy nonvital organs in a strictly regulated market and provide them to people in need for free.


Assuntos
Transplante de Rim , Obtenção de Tecidos e Órgãos/ética , Altruísmo , Humanos , Transplante de Rim/ética , Princípios Morais , Doadores de Tecidos/ética , Obtenção de Tecidos e Órgãos/métodos , Obtenção de Tecidos e Órgãos/normas
12.
Front Public Health ; 10: 824048, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35372186

RESUMO

Living kidney donation is the most common type of living-donor transplant. Italian guidelines allow the living donations from emotionally related donors only after clear and voluntary consent expressed by both the donor and the recipient involved. Living donation raises ethical and legal issues because donors voluntarily undergo a surgical procedure to remove a healthy kidney in order to help another person. According to the Italian standards, the assessment of living donor-recipient pair has to be conducted by a medical "third party", completely independent from both the patients involved and the medical team treating the recipient. Starting from the Hospital "Città della Salute e della Scienza" of Turin (Italy) experience, including 116 living kidney donations, the Authors divided the evaluation process performed by the "Third-Party" Commission into four stages, with a particular attention to the potential donor. Living donation procedures should reflect fiduciary duties that healthcare providers have toward their patients, originating from the relationship of trust between physician and patient. In addition to that, the social implications are enormous if one considers the worldwide campaigns to promote public awareness about organ donation and transplantation, and to encourage people to register their organ donation decisions. The systematic process proposed here can be a tool that proactively reduces and controls the risks of coercion, organ trafficking, vitiated consent, insufficient weighting of donative choice, that could arise especially in donors involved in living kidney donation.


Assuntos
Transplante de Rim , Doadores Vivos , Obtenção de Tecidos e Órgãos , Humanos , Itália , Transplante de Rim/métodos , Transplante de Rim/psicologia , Doadores Vivos/psicologia , Medição de Risco , Obtenção de Tecidos e Órgãos/ética
16.
Acta bioeth ; 27(2): 181-191, oct. 2021.
Artigo em Inglês | LILACS | ID: biblio-1383265

RESUMO

Abstract In medical clinical practice, organ transplantation is mainly applied to patients with end-stage organ lesions and organ failure. However, with the development of organ transplantation, many ethical issues and controversies have arisen. From the perspective of bioethics, the article compares the relevant ethical and legal regulations of organ transplantation in various countries. Due to the complexity of the real situation, many ethical dilemmas arise in organ transplantation in China. The article analyzes and researches three aspects of organ donation, distribution, and trading, and finds that there are various ethical problems in these three aspects of organ transplantation in China, such as whether the principle of presumed consent is ethical, whether brain death is legalized, the selection and determination of transplant patients, and whether human organ trading is legalized, etc. With the help of the four principles of bioethics and the current development of organ transplantation in China, the article proposes that organ transplantation in China should follow four ethical principles: the principle of respect for life, the principle of do no harm/benefit, the principle of respect for autonomy, and the principle of justice, in order to provide a defense for the legitimacy of organ transplantation.


Resumen En la práctica clínica médica, el trasplante de órganos se aplica principalmente a los pacientes con lesiones orgánicas en fase terminal y con insuficiencia orgánica. Sin embargo, con el desarrollo del trasplante de órganos, han surgido muchas cuestiones éticas y controversias. Desde la perspectiva de la bioética, el artículo compara las normas éticas y jurídicas pertinentes del trasplante de órganos en varios países. Debido a la complejidad de la situación real, surgen muchos dilemas éticos en el trasplante de órganos en China. El artículo analiza e investiga tres aspectos de la donación, la distribución y el comercio de órganos, y constata que hay varios problemas éticos en estos tres aspectos del trasplante de órganos en China, como si el principio del consentimiento presunto es ético, si la muerte cerebral está legalizada, la selección y determinación de los pacientes de trasplante y si el comercio de órganos humanos está legalizado, etc. Con la ayuda de los cuatro principios de la bioética y el desarrollo actual del trasplante de órganos en China, el artículo propone que el trasplante de órganos en China debe seguir cuatro principios éticos: el principio de respeto a la vida, el principio de no hacer daño/beneficio, el principio de respeto a la autonomía y el principio de justicia, con el fin de proporcionar una defensa de la legitimidad del trasplante de órganos.


Resumo Na prática clínica médica, o transplante de órgãos é principalmente destinado a pacientes em estágio final de lesões e falência dos órgãos. Entretanto, com o desenvolvimento do transplante de órgãos, surgiram muitas questões e controvérsias éticas. O artigo compara, desde uma perspectiva bioética, as regulações éticas e legais relevantes sobre transplantes de órgãos em vários países. Devido à complexidade da situação real, muitos dilemas éticos surgiram no transplante de órgãos na China. O artigo analisa e investiga aspectos de doação, distribuição e comercialização de órgãos, e encontra que há vários problemas éticos nestes três aspectos do transplante de órgãos na China, tais como se o princípio do consentimento presumido é ético, se morte cerebral é legalizada, a seleção e determinação de pacientes que irão receber transplante, se a comercialização de órgãos humanos é legalizada, etc. O artigo propõe, com a ajuda de quatro princípios da bioética e o desenvolvimento atual de transplante de órgãos na China, que o transplante de órgãos na China deve seguir quatro princípios éticos: o princípio do respeito à vida, o princípio de beneficiar/não causar dano, o princípio do respeito pela autonomia e o princípio da justiça, de forma a possibilitar a defesa da legitimidade do transplante de órgãos.


Assuntos
Humanos , Obtenção de Tecidos e Órgãos/ética , Transplante de Órgãos/ética , Morte Encefálica , China , Consentimento Presumido , Jurisprudência
17.
PLoS One ; 16(8): e0256102, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34415942

RESUMO

INTRODUCTION: Corneal transplantation is the only treatment option for corneal blindness to restore sight. However, there is a disproportionate imbalance between the demand and supply of corneal tissue in Ethiopia. This is because accessing corneal tissue is reliant on people who are willing to donate corneas after death. OBJECTIVE: This study aimed to assess the proportion of willingness to donate cornea and associated factors among adult patients attending at University of Gondar comprehensive and specialized hospital. METHOD: Institutional based cross-sectional study was conducted from July 13 to July 28, 2020, through a face-to-face interview. A total of 451 samples were selected using systematic random sampling. The data were entered into Epidemiological information version 7 and exported to statistical package for social science version 20 for formal analysis. Variables with a P-value of < 0.20 in a bi-variable logistic regression were entered into the multivariable logistic regression and those variables with a p-value of < 0.05 were taken as statistically significant. The strength of association was shown using the odds ratio with a 95% confidence interval. RESULT: A total of 408 adults participated in this study with a response rate of 90% and the proportion of willingness to donate cornea was 179(43.90%). Participants who had a religious belief in Christianity (AOR = 3.23 (95% CI: 1.09-9.57)) and good knowledge about corneal donation (AOR = 5.45(95%CI: 2.69-11.18)) were positively associated with the willingness of corneal donation. On the other side, the age group above 43 years (AOR = 0.31(95% CI: 0.11-0.89) was negatively associated with the willingness of corneal donation. CONCLUSION: The proportion of willingness to donate cornea 43.9% among participants attending Gondar University Comprehensive and Specialized Hospital. Age group greater than 43 years, religion of Christianity and good knowledge were associated with the willingness of corneal donation.


Assuntos
Transplante de Córnea/ética , Obtenção de Tecidos e Órgãos/ética , Obtenção de Tecidos e Órgãos/tendências , Adulto , Idoso , Idoso de 80 Anos ou mais , Córnea , Transplante de Córnea/métodos , Estudos Transversais , Etiópia , Feminino , Conhecimentos, Atitudes e Prática em Saúde/etnologia , Hospitais , Humanos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Inquéritos e Questionários , Doadores de Tecidos/ética , Doadores de Tecidos/psicologia
18.
J Korean Med Sci ; 36(23): e171, 2021 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-34128599

RESUMO

In February 2018, the Withdrawal of the Life-sustaining Treatment (WLST) Decision Act was legalized in Korea. Donation after circulatory death (DCD) after WLST was classified as DCD category III. We report the first case of successful organ donation after WLST in Korea. A 52-year-old male who experienced cerebral hemorrhage was a potential brain-dead donor with donation consent. During the first brain death examination, Babinski reflex was present, which disappeared two days later. Then, electroencephalography was performed five times at intervals of 2 to 3 days, according to the recommendation of a neurologist. The patient was transferred to the OR at 19:30 July 3, 2020. At 20:00, an intensive care unit specialist performed extubation and discontinued vasopressors. Oxygen saturation fell to < 70% in 1 minute, which signaled the beginning of functional warm ischemia. At 20:15, asystole was confirmed; after 5 minutes of "no-touch time," circulatory death was declared. Organ procurement surgery was initiated, with surgeons performing the recipient surgery ready in the adjacent OR. Through the first successful DCD case, we expected that DCD will be actively implemented in Korea, saving the lives of patient waiting for transplantation and resolving the imbalance between organ receipt and donation.


Assuntos
Morte Encefálica , Obtenção de Tecidos e Órgãos , Cuidados Críticos , Humanos , Masculino , Pessoa de Meia-Idade , República da Coreia , Coleta de Tecidos e Órgãos/métodos , Obtenção de Tecidos e Órgãos/ética , Suspensão de Tratamento
19.
Acta bioeth ; 27(1): 27-35, jun. 2021.
Artigo em Inglês | LILACS | ID: biblio-1383235

RESUMO

Abstract: 15. The difference between supply and demand of transplantable organs is a global problem, and one of the most discussed measures aiming to solve it is the implementation of a presumed consent (opt-out) policy in cadaveric organ donation. This type of system is controversial when it comes to its direct effects on organ donation rates as well as its ethical base. We aim to present the latest perspectives concerning the ethical implications of the policy, especially regarding consent: its need, the coherence of presuming it and the policy's capacity to fulfill its requirements. From a community perspective, we advocate a default change in societies with an opt-out system, with a strong population education in that direction. The potential rights of family objection are also approached as well as the differences between theoretical discussion and concrete application of public policy.


Resumen: 19. El desfase entre la oferta y la demanda de órganos para trasplantes es un problema mundial, y una de las medidas más discutidas para solucionarlo es la aplicación de una política de consientimiento presumido (opt-out) de la donación de órganos de cadáveres. Este tipo de sistema es controvertido teniendo en cuenta sus efectos directos sobre las tasas de donación de órganos, así como su base ética. Nuestro objetivo es presentar las últimas perspectivas sobre las implicaciones éticas, especialmente en lo que respecta al consentimiento: su necesidad, la consistencia de su presunción y la capacidad de cumplir sus requisitos. Desde el punto de vista comunitario, abogamos por un cambio por defecto en las sociedades con un sistema de opt-out, con una fuerte educación de la población a tal efecto. También se abordan los posibles derechos de la objeción familiar, así como las diferencias entre el debate teórico y la aplicación concreta de las políticas públicas.


Resumo: 23. A diferença entre a oferta e a procura de órgãos para transplantação é um problema global, e uma das medidas mais discutidas com vista à sua resolução é a implementação de uma política de consentimento presumido (opt-out) na doação de órgãos de cadáver. Este tipo de sistema é controverso ponderando os seus efeitos diretos nas taxas de doação de órgãos, bem como da sua base ética. O nosso objetivo é apresentar as últimas perspetivas relativas às implicações éticas, especialmente no que diz respeito ao consentimento: a sua necessidade, a coerência da sua presunção e a capacidade em cumprir os seus requisitos. Numa perspetiva comunitária, defendemos uma mudança de default nas sociedades com um sistema opt-out, com uma forte educação da população nesse sentido. Os direitos potenciais da objeção familiar também são abordados, bem como as diferenças entre a discussão teórica e a aplicação concreta da política pública.


Assuntos
Humanos , Obtenção de Tecidos e Órgãos/ética , Consentimento Presumido/ética , Cadáver
20.
PLoS One ; 16(3): e0247719, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33730042

RESUMO

Previous research shows that countries with opt-out consent systems for organ donation conduct significantly more deceased-donor organ transplantations than those with opt-in systems. This paper investigates whether the higher transplantation rates in opt-out systems translate into equally lower death rates among organ patients registered on a waiting list (i.e., organ-patient mortality rates). We show that the difference between consent systems regarding kidney- and liver-patient mortality rates is significantly smaller than the difference in deceased-donor transplantation rates. This is likely due to different incentives between the consent systems. We find empirical evidence that opt-out systems reduce incentives for living donations, which explains our findings for kidneys. The results imply that focusing on deceased-donor transplantation rates alone paints an incomplete picture of opt-out systems' benefits, and that there are important differences between organs in this respect.


Assuntos
Consentimento Livre e Esclarecido/ética , Transplante de Rim/ética , Transplante de Fígado/ética , Modelos Estatísticos , Motivação/ética , Obtenção de Tecidos e Órgãos/ética , Humanos , Consentimento Livre e Esclarecido/psicologia , Transplante de Rim/economia , Transplante de Rim/mortalidade , Transplante de Fígado/economia , Transplante de Fígado/mortalidade , Países Baixos , Análise de Sobrevida , Doadores de Tecidos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/economia , Transplantados/estatística & dados numéricos , Listas de Espera/mortalidade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA