Transmission of congenital clotting factor deficiencies following orthotopic liver transplantation is rare. There has been one reported case of donor-to-recipient transmission of factor XII deficiency in a transplant, and we report the second case. KEYWORDS Coagulation; factor XII deficiency; liver transplantation; primary hyperoxaluria O rthotopic liver transplantation (OLT) may be associated with donor-transmitted deficiencies of coagulation factors due to lack of proteins synthesized by the liver. Some of these deficiencies do not have clinical significance, whereas others can lead to bleeding or thrombotic complications after OLT.
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