Impact of a pediatric donation after cardiac death program

Organ Donation in Canadian PICUs: A Cross-Sectional Survey, 2021-2022

OBJECTIVES

To understand contemporary pediatric organ donation programs in Canadian PICUs, including: policies and practices, data collection and reporting, and system and process barriers.

DESIGN

A cross-sectional survey carried out 2021-2022.

SETTING

Canadian PICUs affiliated with a donor physician network.

SUBJECTS

Pediatric intensivists identified as the donation program lead, or most knowledgeable about donation for their institution.

MEASUREMENTS AND MAIN RESULTS

A 19-item survey was developed through collaboration with stakeholders from the organ donation and transplantation community within Canada. Domains and items were generated and reduced iteratively during an in-person workshop. Pretesting and pilot testing were completed to ensure readability, flow, clinical sensibility, and construct validity. Fifteen of 16 (94%) invited Canadian PICUs from seven provinces completed the survey representing 88% (15/18) of all noncardiac Canadian PICUs. Surveys were completed between June 2021 and September 2022. All units support donation after death by neurologic criteria (DNC); 14 of 15 indicated donation policies were in place and 1 of 15 indicated no policy but the ability to facilitate donation. Thirteen of 15 units (87%) support donation after death by circulatory criteria (DCC) with policies in place, with 11 of 13 of these indicating routine support of donation opportunities. The majority (13/15) of units identified a donation champion. Of the 16 identified champions across these centers, 13 were physicians and were registered nurses or nurse practitioners. Eight of 13 units (62%) with donation champions had positions supported financially, of which 5 units came from the Organ Donation Organization and the other 3 came from the provincial health authority. Finally, only 3 of 15 PICU donation programs have a pediatric donation committee with family involvement. Variability exists in identification (including determination of death practices), referral, and approach for donation between units.

CONCLUSIONS

Although all Canadian PICUs support donation after DNC donation, and most support donation after DCC, variability exists in the identification, referral, and approach of potential donors. There is a notable lack of family involvement in pediatric donation programs. There are many opportunities for standardization of PICU donation programs which may result in improved rates of pediatric organ donation in Canada.

Comparison of pediatric brain-dead donors to donation after circulatory death donors in the United States

In pediatrics, an increasing need for transplantable organs exists. This study aimed to describe the epidemiology of pediatric deceased donors in the United States. This retrospective observational study utilized data from the Organ Procurement and Transplantation Network (OPTN) from 2000 to 2015. Patients were stratified based on method of organ donation. Demographic variables and mechanism of death were then compared. A total of 14,481 deceased pediatric organ donors, donation after brain death (DBD) and donation after circulatory death (DCD), were included in the study, of which 8% were DCD donors. A significant difference (p<0.001) existed between the two donor groups with respect to ethnicity and mechanism of death. The annual trend of DCD and DBD donors showed an inverse relationship. During the 15-year study period the number of DBD donors decreased from 985 to 785 per year while DCD donors increased from 15 to 146 per year. As well, overall organs transplanted per year decreased from 3,475 to 3,117 over the 15-year study period. Significant differences exist between pediatric DBD donors and DCD donors, specifically with respect to ethnicity and mechanism of death. The number of pediatric DBD donors is decreasing while the number of pediatric DCD is slowly rising, making it increasingly important to be able to characterize these donors to better identify eligible DCD donors to optimize organ utilization.

Patient and provider factors impacting referral for neonatal organ donation

BACKGROUND

As determination of brain death is infrequent in neonates, the AAP endorses donation after circulatory determination of death as an acceptable alternative. Despite this recommendation, neonatal organ donation is infrequent. Timely referral to OPOs is a vital first step in the organ donation process. The aim of this study was to identify patient and provider factors impacting timely referral for neonatal organ donation.

METHODS

Medical records were reviewed for deaths occurring in a Level IV NICU from 2007 to 2017. Clinical and demographic factors, provider type, timing of OPO referral (before or after death), and outcome were assessed. Bivariate and multivariable logistic regression models were utilized to identify predictors of OPO referral characteristics.

RESULTS

Between 2007 and 2017, 329 deaths occurred in the NICU or delivery room. Of the 265 infants meeting inclusion criteria, 96% had late referrals (after death) and were declined for organ donation. Frequency of timely referrals (before death) improved when OPO contact was by an attending neonatologist, when withdrawal of life support was planned, and with increasing birthweight, gestational age, and PMA. Factors associated with decreased OPO referral included male sex, lower weight at death, earlier PMA, and deaths occurring while receiving maximal intensive care support. No organs or tissues were donated.

CONCLUSIONS

This study is the first to report NICU referral patterns for organ donation. We found that timely provider referral of neonates to the OPO was rare. Exploration of provider knowledge will guide future educational interventions aimed to improve the referral process.

Heart Transplantation With Donation After Circulatory Death

Heart transplantation remains the preferred option for improving quality of life and survival for patients suffering from end-stage heart failure. Unfortunately, insufficient supply of cardiac grafts has become an obstacle. Increasing organ availability with donation after circulatory death (DCD) may be a promising option to overcome the organ shortage. Unlike conventional donation after brain death, DCD organs undergo a period of warm, global ischemia between circulatory arrest and graft procurement, which raises concerns for graft quality. Nonetheless, the potential of DCD heart transplantation is being reconsidered, after reports of more than 70 cases in Australia and the United Kingdom over the past 3 years. Ensuring optimal patient outcomes and generalized adoption of DCD in heart transplantation, however, requires further development of clinical protocols, which in turn require a better understanding of cardiac ischemia-reperfusion injury and the various possibilities to limit its adverse effects. Thus, we aim to provide an overview of the knowledge obtained with preclinical studies in animal models of DCD heart transplantation, to facilitate and promote the most effective and efficient advancement in preclinical research. A literature search of the PubMed database was performed to identify all relevant preclinical studies in DCD heart transplantation. Specific aspects relevant for DCD heart transplantation were analyzed, including animal models, graft procurement and storage conditions, cardioprotective approaches, and graft evaluation strategies. Several potential therapeutic strategies for optimizing graft quality are identified, and recommendations for further preclinical research are provided.

Pediatric donation after circulatory determination of death (pDCD): A narrative review

Pediatric donation after circulatory death (pDCD) is an established pathway for organ donation. It remains, however, a relatively rare event worldwide, and most clinicians outside of the pediatric intensive care unit (PICU) are unfamiliar with it. The goal of this review is to introduce the processes and concepts of pDCD. While most children die in circumstances that would not allow pDCD, many children that die after withdrawal of life sustaining therapy (WLST) may be eligible for donation of some organs. The potential benefits of this practice to patients on the wait list are well known, but donation can also be an opportunity to honor a patient's or family's desire to altruistically improve the lives of others. Offering the possibility of donation requires careful attention to ethical principles to ensure that conflicts of interest are avoided and that the family is free to make an independent, fully informed decision. Doing so allows families and decision makers the autonomy to decide if donation is something they wish to incorporate into end-of-life care.

Challenges of paediatric organ donation

Paediatric organ donation represents a small fraction of overall organ donation in Australia and New Zealand and indeed world-wide. Many factors contribute to low donation rates including low paediatric intensive care mortality, consent rates and medical suitability relating to disease, age and size. In the past decade, the re-emergence of donation after circulatory death has changed the landscape for the paediatric population. This article reviews the current status and challenges of organ donation for the paediatric population.

Pediatric Donation After Circulatory Determination of Death: A Scoping Review

OBJECTIVE

Although pediatric donation after circulatory determination of death is increasing in frequency, there are no national or international donation after circulatory determination of death guidelines specific to pediatrics. This scoping review was performed to map the pediatric donation after circulatory determination of death literature, identify pediatric donation after circulatory determination of death knowledge gaps, and inform the development of national or regional pediatric donation after circulatory determination of death guidelines.

DATA SOURCES

Terms related to pediatric donation after circulatory determination of death were searched in Embase and MEDLINE, as well as the non-MEDLINE sources in PubMed from 1980 to May 2014.

STUDY SELECTION

Seven thousand five hundred ninety-seven references were discovered and 85 retained for analysis. All references addressing pediatric donation after circulatory determination of death were considered. Exclusion criteria were articles that did not address pediatric patients, animal or laboratory studies, surgical techniques, and local pediatric donation after circulatory determination of death protocols. Narrative reviews and opinion articles were the most frequently discovered reference (25/85) and the few discovered studies were observational or qualitative and almost exclusively retrospective.

DATA EXTRACTION

Retained references were divided into themes and analyzed using qualitative methodology.

DATA SYNTHESIS

The main discovered themes were 1) studies estimating the number of potential pediatric donation after circulatory determination of death donors and their impact on donation; 2) ethical issues in pediatric donation after circulatory determination of death; 3) physiology of the dying process after withdrawal of life-sustaining therapy; 4) cardiac pediatric donation after circulatory determination of death; and 5) neonatal pediatric donation after circulatory determination of death. Donor estimates suggest that pediatric donation after circulatory determination of death will remain an event less common than brain death, albeit with the potential to substantially expand the existing organ donation pool. Limited data suggest outcomes comparable with organs donated after neurologic determination of death. Although there is continued debate around ethical aspects of pediatric donation after circulatory determination of death, all pediatric donation after circulatory determination of death publications from professional societies contend that pediatric donation after circulatory determination of death can be practiced ethically.

CONCLUSIONS

This review provides a comprehensive overview of the published literature related to pediatric donation after circulatory determination of death. In addition to informing the development of pediatric-specific guidelines, this review serves to highlight several important knowledge gaps in this topic.

Chinese Pediatric Organ Donation With Scheduled Cardiac Arrest After Brain Death: A Novel China Classification Beyond Maastricht

OBJECTIVE

Organ donation with scheduled cardiac arrest after brain death (s-DBCD) is a special category in China. This study was to evaluate the procedure of pediatric s-DBCD, graft quality, and clinical outcomes of single kidney transplantation.

METHODS

We retrospectively analyzed the data of 8 Chinese pediatric donors.

RESULTS

The death causes of the donors (age 4-12 years) were cerebral hypoxia after cardiopulmonary resuscitation (n = 1), intracranial vascular malformation (n = 1), severe traumatic brain injury (n = 3), and brain malignancy (n = 3). The functional warm ischemia time of the grafts was 18 (13-26) minutes. Sixteen kidneys were recovered using liver-kidney en bloc procurement after in situ perfusion. All kidneys had a length >7 cm and were transplanted to 3 adolescent and 13 adult recipients. Two cases of delayed graft function occurred. The patients had a median serum creatinine level of 97 (55-123) μmol/L by the last visit. The median estimated glomerular filtration rate level was 85.4 (58-136) mL/min. Five episodes of biopsy-proven acute rejection occurred in 4 patients, which were reversed by methylprednisolone pulse therapy. Renal arterial stenosis was observed in 1 patient, which was cured by interventional balloon dilatation and stent implantation.

CONCLUSION

Pediatric s-DBCD is feasible with acceptable graft quality. Single kidney transplantation with pediatric graft size >7 cm has good clinical outcomes.

Pediatric Organ Donation Potential at a Children's Hospital

OBJECTIVES

To estimate the organ donation potential of patients dying at a children's hospital.

DESIGN

Retrospective cohort study.

SETTING

A free-standing, 271-bed, tertiary Children's Hospital with a pediatric trauma center.

PATIENTS

Patients dying in any ICU during 2011-2012.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Among 224 deaths, 23 (10%) met neurologic criteria for death: 18 donated organs (conversion rate 78%), 47 (19%) died without prior limitation of life-sustaining therapies, and the remaining 69% had withdrawal of life-sustaining therapies. Among those dying after withdrawal of life-sustaining therapies (n = 154), the organ procurement organization was not notified prior to death in 24%, and older patients were more likely to be referred compared to those less than 1 year old. Infection, cancer, and organ dysfunction were the most frequent conditions that disqualified dying patients from suitability for donation. Just over half of children more than 1 year old were suitable for donation after withdrawal of life-sustaining therapies compared to a fifth of infants (19%). Of 45 suitable for donation, 37 (82%) died within 1 hour. None of 7 infants younger than 1 month old died within 20 minutes, compared with 46% of infants between 1 month and 1 year (n = 6) and 72% of older children. Thirty-three families (73%) did not permit donation after circulatory criteria for death whereas 12 (27%) gave permission for donation, and all 12 were actual donors (conversion rate 12/37 [32%]).

CONCLUSIONS

The number of pediatric potential candidates for donation after circulatory determination of death was significantly larger than potential candidates for donation after neurologic determination of death at our hospital, but the actual donation rate was significantly lower. Increasing acceptance of donation after circulatory determination of death could increase organ donation. Among all children having withdrawal of life-sustaining therapies, donation after circulatory determination of death potential is less for infants.

Management of the Potential Organ Donor in the ICU: Society of Critical Care Medicine/American College of Chest Physicians/Association of Organ Procurement Organizations Consensus Statement

This document was developed through the collaborative efforts of the Society of Critical Care Medicine, the American College of Chest Physicians, and the Association of Organ Procurement Organizations. Under the auspices of these societies, a multidisciplinary, multi-institutional task force was convened, incorporating expertise in critical care medicine, organ donor management, and transplantation. Members of the task force were divided into 13 subcommittees, each focused on one of the following general or organ-specific areas: death determination using neurologic criteria, donation after circulatory death determination, authorization process, general contraindications to donation, hemodynamic management, endocrine dysfunction and hormone replacement therapy, pediatric donor management, cardiac donation, lung donation, liver donation, kidney donation, small bowel donation, and pancreas donation. Subcommittees were charged with generating a series of management-related questions related to their topic. For each question, subcommittees provided a summary of relevant literature and specific recommendations. The specific recommendations were approved by all members of the task force and then assembled into a complete document. Because the available literature was overwhelmingly comprised of observational studies and case series, representing low-quality evidence, a decision was made that the document would assume the form of a consensus statement rather than a formally graded guideline. The goal of this document is to provide critical care practitioners with essential information and practical recommendations related to management of the potential organ donor, based on the available literature and expert consensus.

Epidemiology of death in the PICU at five U.S. teaching hospitals*

OBJECTIVE

To determine the epidemiology of death in PICUs at 5 geographically diverse teaching hospitals across the United States.

DESIGN

Prospective case series.

SETTING

Five U.S. teaching hospitals.

SUBJECTS

We concurrently identified 192 consecutive patients who died prior to discharge from the PICU. Each site enrolled between 24 and 50 patients. Each PICU had similar organizational and staffing structures.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

The overall mortality rate was 2.39% (range, 1.85-3.38%). One hundred thirty-three patients (70%) died following the withholding or withdrawal of life-sustaining treatments, 30 (16%) were diagnosed as brain dead, and 26 (14%) died following an unsuccessful resuscitation attempt. Fifty-seven percent of all deaths occurred within the first week of admission; these patients, who were more likely to have new onset illnesses or injuries, included the majority of those who died following unsuccessful cardiopulmonary resuscitation attempts or brain death diagnoses. Patients who died beyond 1-week length of stay in the PICU were more likely to have preexisting diagnoses, to be technology dependent prior to admission, and to have died following the withdrawal of life-sustaining treatment. Only 64% of the patients who died following the withholding or withdrawing of life support had a formal do-not-resuscitate order in place at the time of their death.

CONCLUSIONS

The mode of death in the PICU is proportionally similar to that reported over the past two decades, while the mortality rate has nearly halved. Death is largely characterized by two fairly distinct profiles that are associated with whether death occurs within or beyond 1-week length of stay. Decisions not to resuscitate are often made in the absence of a formal do-not-resuscitate order. These data have implications for future quality improvement initiatives, especially around palliative care, end-of-life decision making, and organ donation.

Parental experiences and recommendations in donation after circulatory determination of death*

OBJECTIVE

To describe parents' experience of organ donation decision making in the case of donation after circulatory determination of death.

DESIGN

Qualitative exploratory analysis.

SETTING

Participants were recruited from the ICU of a single children's hospital located in the western United States.

PARTICIPANTS

Thirteen parents, 11 families who consented to donate their child's organs.

INTERVENTIONS

Interviews (average 82 min).

MEASUREMENTS AND MAIN RESULTS

Transcribed interviews were analyzed using the constant comparative method to identify themes that reflected similarities in parents' experiences. The themes we found included 1) factors contributing to parental decision making, 2) under the circumstances of the child dying, and 3) donation decision and its impact on parental grief. Factors that influenced the decision making all related to the child dying, including protecting the child's body and helping the child to die peacefully. Finally, parents made recommendations about the organ donation process, including empathy, attend to end-of-life concerns, and the provision of relevant information for donation decisions.

CONCLUSIONS

Parents' decision making was related directly to end-of-life experience and grief process. Providers need to orient to parents' end-of-life concerns to support parents' decision-making process and improve donation after circulatory determination of death procedures.

Identifying potential kidney donors among newborns undergoing circulatory determination of death

BACKGROUND

Over 96,000 patients await kidney transplantation in the United States, and 35,000 more are wait-listed annually. The demand for donor kidneys far outweighs supply, resulting in significant waiting list morbidity and mortality. We sought to identify potential kidney donors among newborns because en bloc kidney transplantation donation after circulatory determination of death (DCDD) may broaden the donor pool.

METHODS

We reviewed discharges from our 84-bed NICU between November 2002 and October 2012 and identified all deaths. The mode of death among potential organ donors (weight ≥ 1.8 kg) was recorded. Patients undergoing withdrawal of life support were further evaluated for DCDD potential. After excluding patients with medical contraindications, those with warm ischemic time (WIT) less than 120 minutes were characterized as potential kidney donors.

RESULTS

There were 11,201 discharges. Of 609 deaths, 359 patients weighed ≥ 1.8 kg and 159 died after planned withdrawal of life support. The exact time of withdrawal could not be determined for 2 patients, and 100 had at least 1 exclusion criterion. Of the remaining patients, 42 to 57 infants were potential en bloc kidney donors depending on acceptance threshold for WIT. Applying a 40% to 70% consent rate range would yield 1.7 to 4 newborn DCDD donors per year.

CONCLUSIONS

A neonatal DCDD kidney program at our institution could provide 2 to 4 paired kidneys for en bloc transplantation each year. Implementing a DCDD kidney donation program in NICUs could add a new source of donors and increase the number of kidneys available for transplantation.

Pediatric organ donation and transplantation

BACKGROUND AND OBJECTIVES

There is increasing unmet need for solid organ donation. Alternative donor sources, such as donation after circulatory determination of death (DCDD), are needed. The objective of this study was to examine the impact of DCDD on trends in pediatric organ donation and transplantation.

METHODS

Data were obtained from the Organ Procurement and Transplantation Network for US organ recipients and donors from 2001 to 2010 stratified according to age, organ, and deceased donor type (DCDD or donation after neurologic determination of death). Additional data included transplant wait-list removals due to death.

RESULTS

From 2001 to 2010, pediatric organ transplant recipients increased from 1170 to 1475. Organs from DCDD donors were transplanted into children infrequently but increased from 1 to 31. Pediatric donation after neurologic determination of death decreased by 13% whereas DCDD increased by 174% (50 to 137). Recipients of pediatric grafts decreased from 3042 to 2751. Adults receiving grafts from pediatric donors decreased from 2243 to 1780; children receiving pediatric grafts increased from 799 to 971. Transplant recipients receiving pediatric DCDD grafts were few but increased annually from 50 to 128 adults and 0 to 9 children. Pediatric candidates dying waiting for an organ decreased from 262 to 110.

CONCLUSIONS

From 2001 to 2010, children received more solid organ transplants and fewer children died waiting. Organ recovery from pediatric and adult DCDD donors increased. The number of pediatric recipients of DCDD grafts remains small. Adults primarily receive the direct benefit from pediatric DCDD but other changes in organ allocation have directly benefited children.

Ethical controversies in organ donation after circulatory death

The persistent mismatch between the supply of and need for transplantable organs has led to efforts to increase the supply, including controlled donation after circulatory death (DCD). Controlled DCD involves organ recovery after the planned withdrawal of life-sustaining treatment and the declaration of death according to the cardiorespiratory criteria. Two central ethical issues in DCD are when organ recovery can begin and how to manage conflicts of interests. The "dead donor rule" should be maintained, and donors in cases of DCD should only be declared dead after the permanent cessation of circulatory function. Permanence is generally established by a 2- to 5-minute waiting period. Given ongoing controversy over whether the cessation must also be irreversible, physicians should not be required to participate in DCD. Because the preparation for organ recovery in DCD begins before the declaration of death, there are potential conflicts between the donor's and recipient's interests. These conflicts can be managed in a variety of ways, including informed consent and separating the various participants' roles. For example, informed consent should be sought for premortem interventions to improve organ viability, and organ procurement organization personnel and members of the transplant team should not be involved in the discontinuation of life-sustaining treatment or the declaration of death. It is also important to emphasize that potential donors in cases of DCD should receive integrated interdisciplinary palliative care, including sedation and analgesia.

Organ donation after cardiac death in children: acceptance of a protocol by multidisciplinary staff

BACKGROUND

Organ donation after cardiac death is increasingly implemented, with outcomes similar to those of organ donation after brain death. Many hospitals hesitate to implement a protocol for donation after cardiac death because of the potential negative reactions among health care providers.

OBJECTIVES

To determine the acceptance of a protocol for donation after cardiac death among multidisciplinary staff in a pediatric intensive care unit.

METHODS

An anonymous, 15-question, Likert-scale questionnaire (scores 1-5) was used to determine the opinions of staff about donation after brain death and after cardiac death in a pediatric intensive care unit of a tertiary-care university hospital.

RESULTS

Survey response rate was 67% (n = 60). All physicians, 89% of nurses, and 82% of the remaining staff members stated that they understood the difference between donation after brain death and donation after cardiac death; staff supported both types of donation, at rates of 90% and 85%, respectively. Staff perception was the same for each type of donation (ρ = 0.82; r = 0.92; P < .001). The 20 staff members who provided care directly to patients who were donors after cardiac death considered such donation worthwhile. However, 60% of those providers offered suggestions to improve the established protocol for donation.

CONCLUSIONS

The multidisciplinary staff has accepted organ donation after cardiac death and has fully integrated this kind of donation without reported differences from their acceptance of donation after brain death.

Development of a bedside tool to predict time to death after withdrawal of life-sustaining therapies in infants and children

OBJECTIVES

To generate a preliminary bedside predictor of rapid time-to-death after withdrawal of support in children to help identify potential candidates for organ donation after circulatory death.

DESIGN

Retrospective chart review.

SETTING

Pediatric intensive care unit of an academic children's hospital.

PATIENTS

All deaths in the pediatric intensive care unit from May 1996 to April 2007.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Among 1389 deaths, 634 patients underwent withdrawal of support and 518 with complete data regarding demographics, life-supportive therapies, and end-of-life circumstances were analyzed. Three hundred seventy-three (72%) patients died within 30 mins of withdrawal and 452 (87%) died within 60 mins. Using multiple logistic regression, significant predictors of death within 30 or 60 mins (typical cut-off times for organ donation) were identified and a predictor score was generated. Significant predictors included: age 1 month or younger; norepinephrine, epinephrine, or phenylephrine >0.2 µg/kg/min; extracorporeal membrane oxygenation; and positive end-expiratory pressure >10 cmH2O; and spontaneous ventilation. Possible scores for the 30-min predictor ranged from -17 to 67; a score ≤-9 predicted a 37% probability of death ≤ 30 mins, whereas a score ≥ 38 predicted an 85% probability of death within 30 mins. For the 60-min predictor, scores ranged from -21 to 38; score ≤-10 predicted a 59% probability of death within 60 mins and a score ≥ 16 predicted a 98% probability of death within 60 mins.

CONCLUSIONS

This tool is a reasonable preliminary predictor for death within 30 or 60 mins after withdrawal of support in terminally ill or injured children and might assist in identifying potential pediatric candidates for donation after circulatory death, although prospective validation is required.

Potential for liver and kidney donation after circulatory death in infants and children

OBJECTIVE

To determine the potential effect of organ donation after circulatory death (DCD) on the number of kidney and liver donors in a PICU.

PATIENTS AND METHODS

All deaths in the PICU of an academic, tertiary care children's hospital from May 1996 to April 2007 were retrospectively reviewed. Patient demographics, premortem physiology, and end-of-life circumstances were recorded and compared with basic criteria for potential organ donation. A sensitivity analysis was performed to examine the effect of more strict physiologic and time criteria as well as 3 different rates of consent for donation.

RESULTS

There were 1389 deaths during 11 years; 634 children (46%) underwent withdrawal of life support, of whom 518 had complete data and were analyzed. There were 131 children (25% of those withdrawn, 9% of all deaths) who met basic physiologic and time criteria for organ donation (80 kidney; 107 liver). Consideration of consent rates in sensitivity analysis resulted in an estimated 24 to 85 organ donors, an increase of 28% to 99% over the 86 actual brain-dead donors during the same time period. Assuming historical rates of organ recovery, these DCD donors might have produced 30 to 88 additional kidneys and 8 to 56 additional livers, an increase of 21% to 60% in kidney donation and 13% to 80% in livers above the number of organs recovered from brain-dead donors.

CONCLUSIONS

Although relatively few children may have been eligible for DCD, they might have increased the number of organ donors from our institution, depending greatly on consent rates. DCD merits additional discussion and exploration.

Withdrawal of life-support in paediatric intensive care--a study of time intervals between discussion, decision and death

Background

Scant information exists about the time-course of events during withdrawal of life-sustaining treatment. We investigated the time required for end-of-life decisions, subsequent withdrawal of life-sustaining treatment and the time to death.

Methods

Prospective, observational study in the ICU of a tertiary paediatric hospital.

Results

Data on 38 cases of withdrawal of life-sustaining treatment were recorded over a 12-month period (75% of PICU deaths). The time from the first discussion between medical staff and parents of the subject of withdrawal of life-sustaining treatment to parents and medical staff making the decision varied widely from immediate to 457 hours (19 days) with a median time of 67.8 hours (2.8 days). Large variations were subsequently also observed from the time of decision to actual commencement of the process ranging from 30 minutes to 47.3 hrs (2 days) with a median requirement of 4.7 hours. Death was apparent to staff at a median time of 10 minutes following withdrawal of life support varying from immediate to a maximum of 6.4 hours. Twenty-one per cent of children died more than 1 hour after withdrawal of treatment. Medical confirmation of death occurred at 0 to 35 minutes thereafter with the physician having left the bedside during withdrawal in 18 cases (48%) to attend other patients or to allow privacy for the family.

Conclusions

Wide case-by-case variation in timeframes occurs at every step of the process of withdrawal of life-sustaining treatment until death. This knowledge may facilitate medical management, clinical leadership, guidance of parents and inform organ procurement after cardiac death.

Donation after cardiac death: the potential contribution of an infant organ donor population

OBJECTIVE

To determine the percentage of deaths in level III neonatal intensive care unit (NICU) settings that theoretically would have been eligible for donation after cardiac death (DCD), as well as the percentage of these who would have been potential DCD candidates based on warm ischemic time.

STUDY DESIGN

We conducted a retrospective study of all deaths in 3 Harvard Program in Neonatology NICUs between 2005 and 2007. Eligible donors were identified based on criteria developed with our transplantation surgeons and our local organ procurement organization. Potential candidates for DCD were then identified based on an acceptable warm ischemic time.

RESULTS

Of the 192 deaths that occurred during the study period, 161 were excluded, leaving 31 theoretically eligible donors. Of these, 16 patients had a warm ischemic time of <1 hour and were potential candidates for DCD of 14 livers and 18 kidneys, and 14 patients had a warm ischemic time of <30 minutes and were potential candidates for DCD of 10 hearts.

CONCLUSIONS

Eight percent of NICU mortalities were potential candidates for DCD. Based on the size of the potential donor pool, establishing an infant DCD protocol for level III NICUs should be considered.