Non-heartbeating organ donation: ethical controversies and medical considerations

Non-Heartbeating Organ Donation: A Review

Organ transplantation is one of the groundbreaking achievements in medicine in the 20th century. In the early days of transplantation, organs were obtained from non-heartbeating (NHB) cadavers. With time, better options for organ sources became available (for example, living-related and “brain dead” donors), and the practice of obtaining organs from NHB cadavers fell out of favor. Improvements in the field of transplantation have led to an increased demand for organs. Various strategies have been employed recently to increase the supply, one of them being non-heartbeating organ donation (NHBOD). NHBOD can take place in controlled or uncontrolled circum-stances. Recently, national organizations have supported and proposed guidelines for NHBOD and to aid clinicians in identifying potential donors. Outcomes of organs obtained from NHB cadavers are comparable to those obtained from heartbeating donors. The practice of NHBOD is increasing and has proven that it can contribute to increasing organ availability.

A hierarchical communication model of the antecedents of health care professionals' support for donations after cardiac death

Using structural equation modeling, the direct and indirect impact of five variables on the support of donation after cardiac death from the perspective of health care professionals were investigated: knowledge, trust in the transplant team, whether patients are in a state of irreversibility, whether health care professionals participate in a patient's death, and perceptions about the brain death versus cardiac death donation process. In total, 10/15 relationships posited in the model had significant pathways. The results provide insight into sequential communication strategies for generating support for donations after cardiac death.

Understanding the antecedents of the acceptance of donation after cardiac death by healthcare professionals

OBJECTIVE

A 3-yr study funded by the U.S. Department of Health and Human Services was conducted to identify potential barriers to and opportunities for increasing the number hospitals with donation after cardiac death (DCD) protocols, the support of DCD by individuals involved in the donation request process, and the number DCD donors recovered. This study reports the qualitative findings.

DESIGN

Methods used included an advisory committee and an extensive array of key informant interviews and focus groups.

SETTING

Hospitals and telephone contact.

SUBJECTS

Discussions with nurses, physicians, social service staff, clergy, administrators, and organ procurement organization staff. A total of 216 people participated.

INTERVENTIONS

Collection and analysis of information regarding perceptions of DCD, potential barriers and opportunities, and strategies for gaining support.

MEASUREMENT AND MAIN RESULTS

Key barriers included a lack of knowledge about DCD, psychological barriers for DCD vs. brain death, concerns about whether death has been reached, saving vs. killing patients, trust in the organ procurement organization, moving from saving patients to being a donation advocate, and concerns with the DCD process. Opportunities included education initiatives, well-trained requesters, a cultural shift, a consistent DCD protocol separating care from recovery, process monitoring, and a strong sense of teamwork.

CONCLUSIONS

Our findings provide a better understanding of healthcare professionals' knowledge, attitudes, and behaviors regarding DCD. Understanding these issues is critical to the implementation of strategic plans for DCD programs. One of the biggest barriers to overcome is a lack of knowledge of DCD, which leads to misperceptions, which in turn contribute to negative attitudes and/or discomfort by healthcare professionals. Communication efforts that are able to educate healthcare professionals and eliminate misperceptions will increase support for DCD. Key to future success requires confident and well-trained DCD requesters.

An empirical examination of the antecedents of the acceptance of donation after cardiac death by health care professionals

Findings are reported from a US Department of Health and Human Services (DHHS) funded study to identify barriers to increasing support for donations after cardiac death by health professionals. A donations after cardiac death (DCD) acceptance model is conceptualized and tested via 806 survey responses from certified requestors, all of whom had their identities protected through Institutional Review Board (IRB) protocol. The overall model was significant and explained 35% of the variation in DCD support. Greater knowledge about DCD, greater trust in the organ procurement organization (OPO) and a belief that futility has been reached were all positively associated with DCD acceptance. Negative perceptions of DCD versus brain death, transitioning from caregiving to donation advocate, concerns about the DCD process and the idea that DCD leads to active participation in the death reduced its support. The three greatest impediments to support of DCD exist when health professionals feel they are playing an active role in killing the patient, that a state of death has not yet been reached, and that DCD has more psychological barriers than does the brain death donation process. Opportunities and strategic initiatives are discussed to overcome these barriers, including the value of communication and education initiatives and the need for well-trained requestors. The implementation of these strategic guidelines helped to increase the number of DCD donors by 225%.

Palliative Care Consultation in the Process of Organ Donation after Cardiac Death

Palliative care consultation has been demonstrated to be useful in many situations in which expert symptom management, communication around sensitive issues, and family support may serve to enhance or improve care. The process of organ donation is an example of this concept, specifically the process of donation after cardiac death (DCD). DCD allows patients with severe, irreversible brain injuries that do not meet standard criteria for brain death to donate organs when death is declared by cardiopulmonary criteria. The DCD method of donation has been deemed an ethically appropriate means of organ donation and is supported by the organ procurement and medical communities, as well as the public. The palliative care (PC) team can make a significant contribution to the care of the patient and family in the organ donation process. In this paper we describe the controlled DCD process at one institution that utilizes the PC team to provide expert end-of-life care, including comprehensive medical management and family support. PC skills and principles applicable to the DCD process include communication, coordination of care, and skillful ventilator withdrawal. If death occurs within 90 minutes of withdrawal of life support, organs may be successfully recovered for transplantation. If the patient survives longer than 90 minutes, his or her care continues to be provided by the PC team. Palliative care can contribute to standardizing quality end-of-life care practices in the DCD process and provide education for involved personnel. Further experience, research and national discussions will be helpful in refining these practices, to make this difficult and challenging experience as gentle and supportive as possible for the courageous families who participate in this process.

Legal and ethical issues related to nonheart beating organ donation

Major breakthroughs in immunosuppressant medication and advances in surgical techniques have increased the number of successful transplantations, but the demand for organs far outweighs the supply. People continue to die while waiting for donor organs to become available. Nonheart beating organ donation is a means of increasing the supply of organs to be transplanted. It is based on cardiac cessation criteria. This article explores the ethical and legal considerations, as well as implications for perioperative nurses.

Ethical issues and the role of anesthesiologists in non-heart-beating organ donation

PURPOSE OF REVIEW

Demand for vital organs for transplantation continues to increase, and the supply of organs has not kept up with demand. The use of organs harvested immediately after death from patients who have requested withdrawal of life support may be one way to increase supply. Anesthesiologists frequently become involved with such 'non-heart-beating' organ donations when they are asked to withdraw life support from patients in the operating room and monitor them, providing terminal care, until death ensues.

RECENT FINDINGS

Despite thorough debate in the literature and reviews by the Institute of Medicine, ethical controversies remain concerning the use of non-heart-beating donors. Further, non-heart-beating organ donation has failed to produce the windfall of vital organs for transplant predicted by optimistic early estimates. There is agreement in the medical specialties of palliative care, intensive care medicine, internal medicine, and family practice that competency in end-of-life care requires specialty training. Most anesthesiologists are poorly qualified to carry out the tasks involved in non-heart-beating donation, and may even potentially compromise care.

SUMMARY

Ethical controversies in the use of non-heart-beating donors remain despite thorough review. No physician should be involved in withdrawal of life support in non-heart-beating donors, unless specialty trained in end-of-life care. Most anesthesiologists should not be involved in non-heart-beating organ donations; potential exceptions include those with specialty training or experienced in palliative care or intensive care medicine.