Why not take the beating heart?
D001344:Autopsy; D001926:Brain Death; D003643:Death; D004569:Electroencephalography; D006321:Heart; D006801:Humans; D007878:Legislation as Topic; D016377:Organ Transplantation; D010819:Physician's Role; D012015:Reference Standards; D012306:Risk; D018570:Risk Assessment; D019452:Terminally Ill; D014019:Tissue Donors