Real-World Multicenter Experience of Immunosuppression Minimization Among 661 Liver Transplant Recipients

Ann Transplant. 2017 May 2:22:265-275. doi: 10.12659/aot.902523.

Abstract

BACKGROUND Long-term morbidity and mortality in liver transplant recipients is frequently secondary to immunosuppression toxicity. However, data are scarce regarding immunosuppression minimization in clinical practice. MATERIAL AND METHODS In this cross-sectional, multicenter study, we reviewed the indications of immunosuppression minimization (defined as tacrolimus levels below 5 ng/mL or cyclosporine levels below 50 ng/mL) among 661 liver transplant recipients, as well as associated factors and the effect on renal function. RESULTS Fifty-three percent of the patients received minimized immunosuppression. The median time from transplantation to minimization was 32 months. The most frequent indications were renal insufficiency (49%), cardiovascular risk (19%), de novo malignancy (8%), and cardiovascular disease (7%). The factors associated with minimization were older age at transplantation, longer post-transplant follow-up, pre-transplant diabetes mellitus and renal dysfunction, and the hospital where the patients were being followed. The patients who were minimized because of renal insufficiency had a significant improvement in renal function (decrease of the median serum creatinine level, from 1.50 to 1.34 mg/dL; P=0.004). Renal function significantly improved in patients minimized for other indications, too. In the long term, glomerular filtration rate significantly decreased in non-minimized patients and remained stable in minimized patients. CONCLUSIONS Immunosuppression minimization is frequently undertaken in long-term liver transplant recipients, mainly for renal insufficiency. Substantial variability exists regarding the use of IS minimization among centers.

Publication types

  • Multicenter Study

MeSH terms

  • Age Factors
  • Cardiovascular Diseases / chemically induced
  • Cross-Sectional Studies
  • Cyclosporine / administration & dosage*
  • Cyclosporine / adverse effects
  • Cyclosporine / therapeutic use
  • Female
  • Humans
  • Immunosuppressive Agents / administration & dosage*
  • Immunosuppressive Agents / adverse effects
  • Immunosuppressive Agents / therapeutic use
  • Liver Diseases / surgery*
  • Liver Transplantation / methods*
  • Male
  • Middle Aged
  • Risk Factors
  • Tacrolimus / administration & dosage*
  • Tacrolimus / adverse effects
  • Tacrolimus / therapeutic use
  • Transplant Recipients

Substances

  • Immunosuppressive Agents
  • Cyclosporine
  • Tacrolimus