Abstract
Liver transplantation has been a positive impact on both the survival and the quality of life of patients with advanced liver diseases. Progressive, spectacular improvements in the results of liver transplantation have been observed since the preliminary studies by Thomas Starzl in the United States and Roy Calne in Europe. This improvement is related to better knowledge of the natural history of liver diseases, allowing more adequate recipient selection, improvement of surgical techniques, progress in postoperative management, availability of potent antibacterial, antiviral, and antifungal drugs, as well as introduction of new immunosuppressive agents and protocols. These advances have occurred in the short interval of 45 years, suggesting future improvements in the liver transplantation field. The main investigative efforts in liver transplantation have been directed as follows: First attenuation of disproprortion between the numbers of available liver grafts versus waiting list recipients, by increasing the donor pool applying bioartificial support systems, or rendering grafts compatible by the use of stem cells. Second, improved knowledge about the biology of primary liver tumors establishes indications for and optimal moments of transplantation. Third, application of individualized immunosuppressive protocols, adapted to clinical status of the recipient, as well as the development of more selective, less toxic new immunosuppressive agents.
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