Objective To evaluate the long-term survival outcomes of a large cohort of
liver transplant recipients and to identify static and changing factors tha
t influenced these outcomes over time.
Summary Background Data Liver transplantation has been accepted as a therap
eutic option for patients with end-stage liver disease since 1983, with con
tinual improvements in patient survival as a result of advances in immunosu
ppression and medical management, technical achievements, and improvements
in procurement and preservation. Although many reports, including registry
data, have delineated short-term factors that influence survival, few repor
ts have examined factors that affect long-term survival after liver transpl
antation.
Methods Four thousand consecutive patients who underwent liver transplantat
ion between February 1981 and April 1998 were included in this analysis and
were followed up to March 2000. The effect of donor and recipient age at t
he time of transplantation, recipient gender, diagnosis, and year of transp
lantation were compared. Rates of retransplantation, causes of retransplant
ation, and cause of death were also examined.
Results The overall patient survival for the entire cohort was 59%; the act
uarial 18-year survival was 48%. Patient survival was significantly better
in children, in female recipients, and in patients who received transplants
after 1990. The rates of retransplantation for acute or chronic rejection
were significantly lower with tacrolimus-based immunosuppression. The risk
of graft failure and death was relatively stable after the first year, with
recurrence of disease, malignancies, and age-related complications being t
he major factors for loss.
Conclusion Significantly improved patient and graft survival has been obser
ved over time, and graft loss from acute or chronic rejection has emerged a
s a rarity. Age-related and disease-related causes of graft loss represent
the greatest threat to long-term survival.