Cardiac organ donor management. 2006

Sana Ullah, and Luis Zabala, and Bryan Watkins, and Michael L Schmitz
Department of Anesthesia, Arkansas Children's Hospital, Little Rock 77202, USA. ullahsana@uams.edu

There is a critical shortage of donor organs. According to the United Network for Organ Sharing (UNOS), 20% of organs are discarded after procurement. Many of these may be potentially salvageable. Brain death is particularly detrimental to cardiac function. The initial sympathetic storm can produce direct myocardial injury. The ensuing spinal shock reduces global oxygen delivery. There is a change to anaerobic metabolism due to global mitochondrial dysfunction. Diabetes insipidus worsens hypovolemia and thyroid deficiency impairs cardiac function. Inadequate replacement of blood loss from trauma and coagulopathy worsens anemia and oxygen delivery. In the mid-1990s, the Papworth Hospital group in the UK advocated early invasive hemodynamic monitoring and administration of a 'hormonal cocktail', consisting of triiodothyronine (T3), vasopressin, methylprednisolone and insulin. This has been widely accepted and is endorsed by UNOS. Ventricular function, volume status and adequacy of resuscitation should be guided by invasive monitoring and serial echocardiography. Dopamine or epinephrine is used for inotropic support. If hypotension persists, vasopressin should be added which may allow reduction of inotropes. Donor lung function and ventilation should be optimized. Recently, two large retrospective studies have shown that, with aggressive pharmacological and hormonal resuscitation, a significant increase in the number and quality of organs harvested can be achieved.

UI MeSH Term Description Entries
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D014019 Tissue Donors Individuals supplying living tissue, organs, cells, blood or blood components for transfer or transplantation to histocompatible recipients. Organ Donors,Donors,Ovum Donors,Semen Donors,Transplant Donors,Donor,Donor, Organ,Donor, Ovum,Donor, Semen,Donor, Tissue,Donor, Transplant,Donors, Organ,Donors, Ovum,Donors, Semen,Donors, Tissue,Donors, Transplant,Organ Donor,Ovum Donor,Semen Donor,Tissue Donor,Transplant Donor
D016027 Heart Transplantation The transference of a heart from one human or animal to another. Cardiac Transplantation,Grafting, Heart,Transplantation, Cardiac,Transplantation, Heart,Cardiac Transplantations,Graftings, Heart,Heart Grafting,Heart Graftings,Heart Transplantations,Transplantations, Cardiac,Transplantations, Heart

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