PMID- 15848678 OWN - NLM STAT- MEDLINE DCOM- 20050926 LR - 20061115 IS - 0041-1345 (Print) IS - 0041-1345 (Linking) VI - 37 IP - 2 DP - 2005 Mar TI - HHV-6-DNAemia related to CMV-DNAemia after liver transplantation. PG - 1230-2 AB - In addition to cytomegalovirus (CMV), activation of other betaherpesviruses, especially human herpesvirus 6 (HHV-6), has been reported in liver transplant patients. The purpose of this study was to investigate the posttransplant HHV-6-DNAemia in relation to CMV-DNAemia in liver transplant patients. Thirty-one adult liver allograft recipients were regularly monitored for CMV and HHV-6 during the first 3 months after transplantation. For the diagnosis of CMV infections, pp65-antigenemia assay and quantitative DNA-PCR were used. HHV-6 was demonstrated by using quantitative DNA-PCR and HHV-6 antigenemia test. Altogether 253 blood specimens of 31 recipients were analyzed. In addition, CMV and HHV-6 specific antigens were demonstrated by immunohistochemistry in liver biopsy specimens in the case of graft dysfunction. Thirteen patients (40%) developed a clinically significant CMV infection, at a mean of 33 days (range 5 to 62 days) after transplantation and were treated with intravenous ganciclovir. The peak viral loads of these symptomatic CMV infections were high (CMV-DNA 34210 +/- 37557 copies/mL plasma). Six additional asymptomatic patients demonstrated significantly lower CMV-DNAemia levels (1020 +/- 1008 copies/mL, P < .05), and were not treated. Concurrently with CMV, HHV-6 DNAemia and antigenemia were detected in 17 of 19 patients, mean 11 days (range 6 to 24 days) after transplantation. HHV-6 appeared prior to CMV in most cases (12 of 17). However, the peak viral loads were low (HHV-6-DNA <1500 copies/mL blood), even in the five patients who demonstrated HHV-6 antigens on liver biopsy. All CMV infections were successfully treated with ganciclovir and the CMV DNAemia/antigenemia subsided. HHV-6 also responded to the antiviral treatment, but more slowly and less clearly. In conclusion, HHV-6 activations were common and usually associated with CMV infection in liver transplant patients. Further investigation of the clinical significance of HHV-6 DNAemia/antigenemia is necessary. FAU - Harma, M AU - Harma M AD - Department of Virology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland. Maiju.Harma@helsinki.fi FAU - Loginov, R AU - Loginov R FAU - Piiparinen, H AU - Piiparinen H FAU - Halme, L AU - Halme L FAU - Hockerstedt, K AU - Hockerstedt K FAU - Lautenschlager, I AU - Lautenschlager I LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Transplant Proc JT - Transplantation proceedings JID - 0243532 RN - 0 (DNA, Viral) SB - IM MH - Adult MH - Cytomegalovirus/*genetics MH - Cytomegalovirus Infections/*epidemiology MH - DNA, Viral/*blood/genetics MH - Follow-Up Studies MH - Herpesvirus 6, Human/*genetics MH - Humans MH - Liver Transplantation/*physiology MH - Polymerase Chain Reaction MH - Postoperative Complications/*virology MH - Postoperative Period MH - Roseolovirus Infections/epidemiology MH - Time Factors MH - Transplantation, Homologous EDAT- 2005/04/26 09:00 MHDA- 2005/09/27 09:00 CRDT- 2005/04/26 09:00 PHST- 2005/04/26 09:00 [pubmed] PHST- 2005/09/27 09:00 [medline] PHST- 2005/04/26 09:00 [entrez] AID - S0041-1345(04)01441-1 [pii] AID - 10.1016/j.transproceed.2004.12.004 [doi] PST - ppublish SO - Transplant Proc. 2005 Mar;37(2):1230-2. doi: 10.1016/j.transproceed.2004.12.004.