title: Short-term versus long-term induction therapy with antithymocyte globulin in orthotopic liver transplantation.
abstract: T-cell depletion is an essential aspect of clinical immunosuppression. The aim of the present study was to compare the efficacy of two dosage regimens in this setting. We retrospectively compared 246 patients (group 1) who received a 10-day antithymocyte globulin (ATG) induction protocol with 226 patients (group 2) who received a 3-day protocol. The 6-month rejection rate was 22.3% in group 1 and 12.7% in group 2 (P = 0.03). The sub-analysis showed a higher rejection rate in patients with cholestatic disease (P = 0.01), who were more numerous in group 1. This resulted in an overall difference between the groups. Rates of de novo malignancies and recurrent hepatocellular carcinoma were identical. Viral infection rates were 16% and 18%, respectively (P > 0.5). The rates of bacterial and fungal infection were also similar (37% vs. 42%, P > 0.1). However, infection and ATG administration are independent risk factors for survival. A lower rate of fatal infection was observed in group 2 (P = 0.01), while the 10-day ATG regimen had a detrimental effect on patients who had infection (P < 0.0001). Our results strongly support the application of 3-day ATG induction therapy regimen after orthotopic liver transplantation, as it is associated with the same rejection rate as long-term ATG induction therapy, without the negative survival effect of the latter due to lethal infection.
authors.affiliation: Division of Transplantation, Department of Surgery, Medical University of Vienna, Vienna, Austria. thomas.soliman@meduniwien.ac.at
authors.forename: Thomas
authors.initials: T
authors.lastname: Soliman
authors.forename: Hubert
authors.initials: H
authors.lastname: Hetz
authors.forename: Christoph
authors.initials: C
authors.lastname: Burghuber
authors.forename: Georg
authors.initials: G
authors.lastname: Györi
authors.forename: Gerd
authors.initials: G
authors.lastname: Silberhumer
authors.forename: Rudolf
authors.initials: R
authors.lastname: Steininger
authors.forename: Ferdinand
authors.initials: F
authors.lastname: Mühlbacher
authors.forename: Gabriela A
authors.initials: GA
authors.lastname: Berlakovich
mesh_terms: D000328:Adult; D000961:Antilymphocyte Serum / Q000008:administration & dosage* / Q000009:adverse effects; D016572:Cyclosporine / Q000627:therapeutic use; D003907:Dexamethasone / Q000627:therapeutic use; D005260:Female; D005938:Glucocorticoids / Q000627:therapeutic use; D006084:Graft Rejection / Q000517:prevention & control*; D006801:Humans; D007166:Immunosuppressive Agents / Q000008:administration & dosage* / Q000009:adverse effects; D016031:Liver Transplantation / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D011239:Prednisolone / Q000627:therapeutic use; D012189:Retrospective Studies; D014777:Virus Diseases / Q000209:etiology*
chemical_list: D000961:Antilymphocyte Serum; D005938:Glucocorticoids; D007166:Immunosuppressive Agents; D003907:Dexamethasone; D016572:Cyclosporine; D011239:Prednisolone