• P Solves, V Mirabet, M Alvarez, E Vila, F Quiles, J V Villalba, J A Montoro, M A Soler, and R J Roig.
• Valencia Transfusion Center, Valencia, Spain. solves_pil@gva.es
• Transpl Infect Dis. 2008 Dec 1; 10 (6): 391-5.

Background And ObjectivesHepatitis B virus (HBV) has been transmitted by tissue transplantation. In order to reduce the risk of HBV transmission, testing for antibody to HBV core antigen (anti-HBc) is used in addition to testing for hepatitis B surface antigen (HBsAg) in many blood centers and tissue banks.Design And MethodsWe retrospectively analyzed the results of HBV assays in tissue donors. All tissue donors were tested for HBsAg and anti-HBc. All anti-HBc positive sera were tested for the antibody to HBsAg (anti-HBs). From July 2006, an HBV nucleic acid testing (NAT) assay was also performed.ResultsA total of 6855 tissue donors from January 1999 till July 2007 were tested for HBV assays: 4756 women and 2099 men. Positive HBsAg was found in 23 (0.36%) living donors, while no multiorgan or cord blood (CB) donor was found to be positive for HBsAg. Positive anti-HBc was found in 80 multiorgan donors (12.94%), 599 living donors (17.84%), and 103 CB donors (3.57%) (P<0.005), while isolated anti-HBc was found in 12 multiorgan (1.94%), in 126 living tissue donors (3.75%), and in 8 CB donors (0.28%). A total of 1310 donors were analyzed for single-sample DNA HBV NAT assay.DiscussionWe consider that anti-HBc and NAT assays must both still be performed in addition to HBsAg assay for HBV screening in tissue donors. All these tests will be useful in order to define an algorithm for safe and efficient management of the tissue bank.

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