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A Retrospective Study on Recurrence of Hepatitis C Genotype IV in Living Donor Liver Transplantation 4 Years Experience Introduction


Mostafa I.,Abd El All M.,Refaee R.,Safwat W.,Omar A.,Fayez A.,Meteni M.,Abd El All A., Fathi M., Abd El Fatah F., Dorry A., Monayeri M., Hamed H., Abd El Wahab S.
Liver Transplantation Unit
Wady El Neel Hospital,
Cairo, Egypt


Introduction: Hepatitis C virus (HCV)-induced cirrhosis is the commonest indication for liver transplantation, but HCV recurrence is nearly universal and may worsen patient / graft outcomes. The frequency and severity of HCV recurrence has apparently increased in recent years, raising concern about a possible role for newer immunosuppressant regimens in this increasae. Though the infection of the graft is universal ,the treatment of patients with HCV recurrence cannot be totally evidence-based. Liver Transplantation started four years ago in several centers in Egypt (more than 200 patients), In Wadi El Neel Hospital, Since October 2001; 92 patients underwent Living Donor Liver Transplantation 77 Adults 68 patients with HCV and 15Children. Mortality rate was : 25 patients (27%). Early Post Operative Mortality (19 patients) was 20.6 %. Late Mortality (6 patients) was 6.5% and was due to; two patients from sepsis 20 & 6 month post operative, one patient from cerebral Hemorrhage 18 month post operative, one patient from Recurrent HCC 12 month post operative, one patient from Recurrent Cholestatic HCV (Re-transplanted and Died) and one patient from CMV infection 14 month post operative (patient refused to be treated). Post-operative complications were classified as early (mostly surgical complications) and late complications in the form of; biliary complications (leak or stenosis), chronic rejection and recurrence of HCV. Many factors has been included in the recurrence of HCV as; donor’s age and ischemia time, pre-transplant HCV viral load, other factors as obesity, hyperglycemia and alcohol intake. Immunosuppressant Regimen; Over immunosuppressant leads not only to an increased risk of sepsis, malignancy, and drug-specific complications, but will also enhance viral replication. The optimal immunosuppressant regime has not been established but a heavy induction regime and treatment for acute rejection are associated with more viral replication and more graft damage. Cyclosporine (CsA) has been shown in vitro to suppress HCV replication as effectively as interferon alpha (IFN-alpha), an effect that is separate from the immunosuppressive activity of CsA. Data from bone marrow patients and non-transplant patient populations confirm that CsA inhibits HCV replication. This anti-HCV effect is not seen with tacrolimus .

Aim of the Study: Impact of tacrolimus versus cyclosporine in hepatitis C virus-infected living related liver transplant recipients on recurrent hepatitis. This study was a multi variant study concentrating on : relations between HCV recurrence and age of recipient , age of donor , Liver graft size , HCV-RNA before transplantation , HCV-RNA after transplantation and Immunosuppressant type.

Results: Mean Recipient Age ( Recurrence Group : 48 years , Non Recurrence Group : 46.5 years) , Mean Donor Age (Recurrence Group: 31 years , Non Recurrence Group : 26.5 years) , Mean Donor Age (Recurrence Group : 31 years , Non Recurrence Group : 26.5 years) , Liver Graft size ( Recurrence Group : 1.268 +/- 0.252 , Non Recurrence Group : 1.085 +/- 0.21) , Mean HCV-RNA before transplantation (Recurrence Group : 271X103 +/- 107.812 , Non Recurrence Group : 269X103 +/- 262.534) , Mean HCV-RNA after transplantation ( Recurrence Group : 969.818 x 103 +/- 636.002 , Non Recurrence Group : 530.394 X 103 +/- 385.394 ) , Immunosuppressant type ( Recurrence Group :Neoral : 33 % , Tacrolimus : 67 % , Non Recurrence Group : Neoral : 65 % , Tacrolimus : 35 % ). All these multiple variants :Recipient age ,donor age , HCV-RNA Before TX . Relativity between donor and recipient are not statistically significant regarding HCV Recurrence. As regard Immuno-Suppression, recurrence was more with Tacrolimus but the difference was not statistically significant regarding HCV recurrence. HCV-RNA quantitative PCR after TX is significantly higher in recurrent group (Significant P<0.05). While graft size is inversely significant proportional to the recurrence of Hep. C (Significant P<0.05).

Conclusion: In conclusion, although that it is observed that the recurrence is higher with tacrolimus; the choice of calcineurin inhibitors statistically does not impact severity of recurrent HCV in this study. From This Study we begin a randomized prospective study (closed envelope) to compare the relation between the use of Tacrolimus or cyclosporin and the recurrence of HCV (follow up for on year).




 

 
 

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