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.

Identifying potential heart donors among newborns undergoing circulatory determination of death.

BACKGROUND: Infants younger than 1 year old have the highest heart transplant wait-list mortality. Transplantation from donors after circulatory determination of death (DCDD) is an innovative new option for these patients. We examined the potential for heart donation in neonatal intensive care unit (NICU) patients undergoing elective withdrawal of life support. METHODS: Medical records of all patients who died between June 2003 and June 2008 in our 84-bed NICU were reviewed. The mode of death among potential organ donors (weight > 2.5 kg) was categorized into 4 groups: Died despite cardiopulmonary resuscitation (CPR), do not resuscitate (DNR) status, brain death, or withdrawal of life support. Patients undergoing planned life-support withdrawal were evaluated for DCDD potential. RESULTS: Of 266 NICU deaths during the study period, 117 patients weighed more than 2.5 kg at the time of death, of whom 15 (13%) died despite CPR, and 33 (28%) were DNR. No brain deaths occurred; consequently, no conventional organ donation resulted. Of 69 infants (59%) who died after withdrawal, 53 were excluded as potential donors due to active infection, cardiac dysfunction, or congenital heart disease. Among the remaining 16, median time from withdrawal to death was 31 minutes (range, < 1-310 minutes). Five infants (4.3% of deaths in babies > 2.5 kg) died within 30 minutes, had good cardiac function, and could have been potential DCDD heart donors. CONCLUSIONS: Among NICU patients withdrawn from life support during a 5-year period, 4.3% would have been suitable heart donors after circulatory determination of death. Implementing a NICU DCDD program could markedly expand the donor pool and reduce short-term wait-list mortality for infant heart transplantation.