Related Experiment Video
Updated: Aug 17, 2026

Orthotopic Liver Transplantation in Rats
Published on: July 1, 2012
Orthotopic liver transplantation for hepatitis C infection: the best Christmas present?
S D Johnston1, O McNulty, E Mayne
1Department of Medicine, Royal Victoria Hospital, Belfast.
Insights
A man with Christmas disease (Factor IX deficiency) developed liver failure after a hepatitis C infection. Liver transplantation led to normalized Factor IX levels, suggesting a cure for his bleeding disorder.
Area of Science:
- Hepatology
- Hematology
- Transplantation
Background:
- Christmas disease (hemophilia B) is a rare genetic bleeding disorder caused by a deficiency in coagulation Factor IX.
- Patients with hemophilia B may receive coagulation factor concentrates for treatment.
- Chronic hepatitis C infection can lead to severe liver disease, including liver failure.
Observation:
- A 60-year-old man with mild Christmas disease (Factor IX 10%) contracted chronic hepatitis C from factor concentrates.
- The patient subsequently developed hepatic encephalopathy and liver failure, necessitating liver transplantation.
- Post-transplantation, the patient experienced a rapid normalization of Factor IX levels.
Findings:
- Liver transplantation effectively resolved the Factor IX deficiency in this patient with Christmas disease.
- The normalization of Factor IX levels post-transplantation suggests a phenotypic cure of the hemophilia B.
Implications:
- Liver transplantation may represent a potential therapeutic strategy for severe liver complications in hemophilia B patients.
- This case highlights the complex interplay between inherited bleeding disorders, viral infections, and organ transplantation.
- Further research is warranted to explore the mechanisms underlying Factor IX normalization after liver transplantation in hemophilia B.
Abstract:
We report the case of a 60-year-old man with mild Christmas disease, Factor IX 10% of normal, who developed chronic hepatitis C infection after receiving coagulation factor concentrates. Subsequently he developed encephalopathy and liver failure and was referred for liver transplantation. Following transplantation, Factor IX levels rapidly normalised and have remained so, representing a phenotypic cure of his Christmas disease.

