The purpose of this study is to report the variations in hepatic arterial supply of a mixed population of organ donors in which the anatomy was individually examined during the bench surgery, and patients who underwent a selective angiogram of the celiac axis and superior mesenteric artery. We reviewed the donor forms and/or angiograms of 701 patients. The donor forms were completed personally by one of the authors, while all the radiology images were obtained through studies performed by one single radiologist. The arterial anatomy was anomalous in 296 out of 701 cases with an overall incidence of hepatic artery anomalies of 42.22%. In this paper we describe previously unreported arterial anomalies of the hepatic artery, collecting the second largest series of hepatic artery anatomical variations of the English literature. This anatomical update can be useful for transplant and general surgeons, as well as vascular radiologists.

Background. Induction with monoclonal antibodies for prevention of acute cellular rejection (ACR) may avoid many of the adverse events associated with polyclonal antibodies. Basiliximab, a chimeric monoclonal antibody directed against the ␣-chain of the interleukin 2 receptor (CD25), has been extensively evaluated as an induction therapy for kidney transplant recipients, more frequently in combination with a cyclosporine-based regimen. In this study, we assessed the efficacy and safety of basiliximab in combination with a tacrolimus-based regimen after liver transplantation. Methods. Fifty consecutive liver transplants (47 cadaveric donors; 3 living donors) were analyzed. All patients received two 20-mg doses of basiliximab (days 0 and 4 after transplantation) followed by tacrolimus (0.15 mg/kg/day; 10 -15 ng/mL target trough levels) and a tapered dose regimen of steroids. Follow-up ranged from 404 to 1,364 days after transplantation (mean 799.89 days, SDϮ257.37; median 796 days). Results. A total of 88% of patients remained rejection-free during follow-up with an actuarial rejection-free probability of 75% within 3 months. The actuarial patient survival rate at 3 years was 88%, and the graft survival rate was 75%. Twelve (24%) patients experienced one episode of sepsis, requiring temporary reduction of immunosuppressive therapy. There were no immediate side effects associated with basiliximab and no evidence of cytomegalovirus infection or posttransplant lymphoproliferative disorder. Conclusions. Basiliximab in combination with a tacrolimus-based immunosuppressive regimen is effective in reducing episodes of ACR and increasing ACR-free survival after liver transplantation. In addition, basiliximab does not increase the incidence of adverse effects or infections.

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