Detecção e monitorização do herpevirus humano tipo 6 (HHV-6) e do citomegalovirus humano (HCMV) em pacientes transplantados hepaticos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The human lymphotropic herpesvíros that included cytomegalovírus (HCMV), and the herpesvirus 6 (HHV-6 A and B) are very common and infect the vast majority of the human population. Both viruses belong to the Herpesviridae family. In this family, the HHV-6, subfamily Betaherpesvirinae, is wath possessing the bigger neurologic potential pathogenic. The HHV-6 is an immunomodulator virus with a significant risk factor for the subsequent pathogenic effects of others virus like HCMV. Those viroses are responsible for a range of illnesses caused by the primary viral infection or for reactivation of latent infection in patients with immunosuppression, specially after transplant of organs. The transplant of tiver represents the only form effective of cure for a many terminal illnesses. The study included prospective analysis of 30 patients with transplant of the liver from Hospital of Clinics of the State University of Campinas (Unicamp), during January of 2002 to April of 2004. We dected the HHV-6 and the HCMV in tiver transplant patients by means of "Nested-PCR" in peripheral blood We also evaluate the co-infection and the clinical impact between those virus in liver transplant patients. The "Nested PCR" analysis was choosing because this method increases the sensibility and specificity of the PCR and the results are more quick. Twenty-two (73,3%) male and 8 (26,7%) female were enroled with a mean age of 48 years old. We detected in 22 (73,3%) and 23 (76,6%) patients at least a positive result to HCMV and HHV-6. We detect high rate of active infection of HHV6 12/30, (40%) and the same rate 13/30 (43,3%) for HCMV, in the study patients studied. The rate of active co-infection for HCMV and HHV-6, was 4/30 (13,3%). In two patients infected only with HHV-6, was observed neurologic alterations. Five patients was some kind of transplant rejection. Opportunist infections of fungal or bacterial etiology were observed in 14/30 (46,5%). The results show the importance of study the prevalence of these herpesvirus in liverrecipients transplanted, there approaches diagnoses and clinical impact in our environment. They stayed aware to the neurological manifestations of unknown origin because they can be related to the active infection by HHV-6 isolated

ASSUNTO(S)

reação em cadeia de polimerase figado - transplante virus de herpes citomegalovirus

ACESSO AO ARTIGO

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