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Archivos argentinos de pediatría

Print version ISSN 0325-0075On-line version ISSN 1668-3501


RODRIGUEZ DE SCHIAVI, M. Susana et al. Highly active antiretroviral therapy in HIVsero-positive children: Disease progression by baseline clinical, immunological and virological status. Arch. argent. pediatr. [online]. 2009, vol.107, n.3, pp.212-220. ISSN 0325-0075.

Introduction. Highly active antiretroviral therapy (HAART) has been administered to children infected with human immunodeficiency virus (HIV) since 1996. This kind of therapy is effective in achieving viral suppression and stopping disease progression but prolonged administration increases the risk of toxic effects, favours the onset of viral resistance and leads to decreased adherence. The aim of the present study was to determine prognostic factors among clinical, immunological and virological parameters at the beginning of HAART. Population and methods. We performed a prospective-retrospective observational analysis of a cohort or 564 HIV+ children assisted in Hospitals of Buenos Aires and Rosario, Argentina, treated with HAART since 1998 (media of treatment: 46.78 months. Range: 2-91 months). Patients were divided in groups according to age (younger or older than one year), and outcome (favourable or unfavourable). Stage, CD4 lymphocytes percentage, CD4 lymphocyte cell count and viral load at the beginning of treatment were analyzed with outcome by means of χ2 tests, and logistic regression. Results. No differences were observed on the percentage of CD4 T cells and viral load at baseline, between children under one year of age with good (n= 79) or bad outcomes (n= 4). Among older children (450 with good outcome, 31 with unfavourable), the following were identified as predictors of bad outcome: HAART initiation during stage C (p= 0.006), CD4 T-cell percentage below 15 percent (p< 0.001) and CD4 absolute value below 500 cells/mm3 (p= 0.003). Conclusions. Children older than one year will have better outcome when HAART is initiated before stage C, with more than 15% CD4 or more than 500 cells/mm3.

Keywords : Acquired immunodeficiency syndrome; AIDS; HIV; Highly active antiretroviral therapy; HAART.

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