Background: Solid organ allograft recipients may require large amounts
of blood components. The modification of components to make them safe
r for iatrogenically immunosuppressed transplant patients increases wo
rkload demands on blood banks and transfusion services. Study Design A
nd Methods: Institutions within the United States and Canada providing
hemotherapy as support for transplant recipients were surveyed for th
eir transfusion practices. Results: Responses from 25 institutions pro
vide the data for this report. In 1991, the mean intraoperative red ce
ll requirements ranged from <1 unit for renal allograft recipients to
17.3 units for liver transplant recipients. The latter group also requ
ired the greatest amounts of platelets, fresh-frozen plasma, and cryop
recipitate. More than 75 percent of responding institutions provided e
ither cytomegalovirus-seronegative or white cell-reduced cellular comp
onents to pediatric recipients of liver allografts and to both adult a
nd pediatric recipients of heart, lung, and heart-lung all lografts. T
he use of irradiated cellular blood components, although uncommon, was
greatest in heart transplant recipients. The use of pretransplantatio
n transfusions for immunomodulation was generally limited to patients
awaiting a living-donor renal transplant. Conclusion: Transfusion prac
tices varied among the institutions, but the majority provide cytomega
lovirus-safe cellular blood components to heart and lung allograft rec
ipients and to pediatric transplant patients. Gamma-radiated cellular
components are not routinely provided to patients undergoing solid org
an transplantation. Liver allograft recipients require the greatest am
ount of hemotherapeutic support.