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At least 433 records · Page 24Linked to original sources
PubMed2003

Effect of immunosuppressive regimen on acute rejection and liver graft function.

Despite the use of modern immunosuppressive drugs, acute liver rejection (AR) continues to affect up to 70% of transplant recipients. The aim of this retrospective study was to assess the incidence of acute rejection episodes in patients treated with different immunosuppressive protocols. In our series, 37.3% of patients developed a clinical episode of AR. Analysis of immunosuppression has shown that the most effective immunosuppressive protocols, with regard to prevention of AR, include: antibody anti-IL-2R (anti-IL-2R) + tacrolimus (Tac) + mycophenolate mofetil (MMF) + prednisolone (Pred); anti-IL-2R + tacrolimus (Tac) + Pred; or Tac + Pred (25% vs 28.6% vs 30.4%, respectively). The highest rate of AR (66.6%) was observed among patients with anti-IL-2R and Tac but no steroid treatment, mostly (77.7%) in the initial period after liver transplantation. There were no statistical differences in liver function tests between the group treated with a CsA-based versus a Tac-based therapy. Strong immunosuppression contributed to a relatively low incidence of clinical AR in our series. The lowest rate of AR was observed among patients treated with anti-IL-2R antibody. Tac, and Pred. Deprivation of steroids in the early phase after liver transplantation substantially increased the risk of acute rejection episodes despite the use of anti-CD25. There were no statistically significant differences in liver function tests among those treated with Tac versus CsA in the short-term follow-up.

Acute Disease↗
PubMed2003

B19 virus infection in renal transplant recipients.

BACKGROUND: B19 virus infection with persistent anaemia has been reported in organ transplant recipients. Detection of B19 virus DNA in serum is the best direct marker of active infection. OBJECTIVE: The present study evaluated the incidence and clinical role of active B19 virus infection in renal transplant recipients presenting with anaemia. STUDY DESIGN: Forty-eight such recipients were investigated by nested PCR on serum samples. The controls were 21 recipients without anaemia. Active HCMV infection was also investigated as a marker of high immunosuppression. RESULTS AND CONCLUSIONS: In 11/48 (23%) patients B19 virus DNA was demonstrated in serum versus only 1/21 (5%) of the controls. Ten of these 11 patients had already been seropositive at transplantation and active infection occurred in eight of them during the first 3 months after transplantation. The remaining patient experienced a primary infection 9 months after transplantation. Eight (73%) of these 11 patients displayed a concomitant HCMV infection and four (36%) showed increasing serum creatinine levels but none developed glomerulopathy; 3/11 (27%) recovered spontaneously from anaemia whereas 8/11 (73%) needed therapy. In conclusion, the relatively high occurrence (23%) of B19 virus infection in patients presenting with anaemia, suggests that it should be considered in the differential diagnosis of persistent anaemia in renal transplant recipients. Presence of the viral DNA should be assessed early from transplantation and the viral load should be monitored to follow persistent infection and better understand the relation between active infection and occurrence of anaemia, and to assess the efficacy of IVIG therapy and/or immunosuppression reduction in clearing the virus.

Anemia↗
PubMed1999

The potential role of rapamycin in pediatric transplantation as observed from adult studies.

Although pediatric patient and renal graft survival rates have shown marked improvements during the past decade, the persistent toxicities of immunosuppressive drugs and chronic allograft attrition remain major obstacles in transplant therapy. Results in adult patients suggest that complete steroid withdrawal is possible in the majority of recipients under treatment with a cyclosporin A-rapamycin (CsA RAPA) regimen. Furthermore, preliminary studies suggest that a marked reduction in the dose of CsA may be possible under the umbrella of RAPA coverage. The gain in immunosuppressive efficacy afforded by RAPA has not only been obtained without an increased morbidity owing to infectious or neoplastic causes, but also with the potential for reducing the incidence and/or progression of chronic rejection.

Acute Disease↗