Abstract
Objective Sirolimus is a new, potent immunosuppreasant considered to be nonnephrotoxic. There is limited experience with the use of sirolimus in liver transplant recipients. This study was to investigate the clinical experience of conversion from tacrolimus-based to sirolimus-based immunosuppression in liver transplant recipients. Patients switched to cyclosporine-based immunosuppression during the same period were also enrolled as controls. Methods This retrospective study examined liver transplant recipients who had been switched from tacrelimus-based to sirolimus-based or cyelosporine-based immunosuppressive therapy between January 2004 and January 2008 in the First Affiliated Hospital of Sun Yat-sen University. Patients were divided into 2 groups: those switched to sirolimus-based immunosuppression (group A; n=32); and those switched to cyclosporine-based immunosuppression (group B; n=15). Results The rate of successful conversion was 34.5% in group A (10/32) compared with 45.5% in group B (7/15); this difference was not statistically significant (P>0.05). After conversion, renal function in patients in group A remained normal, while the renal function in patients in group B become abnormal 4 months after conversion (P<0.05). In group A, some simlimus-associated adverse effects occurred but were mild and easy to control. Conclusion Sirolimus can be used safely in place of tacrolimus in liver transplant recipients. Key words: Liver transplantation; Immuno suppressive agents; Sirolimus
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