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Rev. Inst. Med. Trop. Säo Paulo ; 55(1): 25-30, Jan.-Feb. 2013. tab
Article in English | LILACS | ID: lil-661099

ABSTRACT

Toxoplasmosis is considered one of the opportunistic infections for individuals with the Acquired Immunodeficiency Syndrome (AIDS), and is also a major cause of morbidity and mortality. The aim of this study was to evaluate the prevalence of neurotoxoplasmosis, ocular toxoplasmosis and antibodies for Toxoplasma gondii in HIV-positive patients attending the SAE (Specialized Assistance Service for HIV/AIDS), as well as to associate their serological profile with epidemiological and clinical data. A total of 250 patients participated in the study from December, 2009 to November, 2010. Serological analysis was performed using the indirect immunofluorescent technique; epidemiological data were gathered by a questionnaire, and clinical history was based on the analysis of medical charts. Prevalence of seropositivity was 80%, with history of neurotoxoplasmosis in 4.8% and of ocular toxoplasmosis in 1.6% of the patients. The Highly Active Antiretroviral Treatment (HAART) was not used by 32% of the patients, 18.4% of the patients had CD4+ T- lymphocyte count less than 200 cells/mm³ and 96.8% of them were not aware of the modes of disease transmission. These findings led us to conclude that the study population is at high risk of clinical toxoplasmosis, because of both reactivation of infection in the seropositive patients who do not make a regular use of HAART, and primo-infection in seronegative patients worsened by an unawareness of the modes of infection reported in this study.


A toxoplasmose é considerada uma das infecções oportunistas em indivíduos com a Síndrome da Imunodeficiência Adquirida (SIDA), constituindo importante causa de morbidade e mortalidade. Este trabalho objetivou conhecer a prevalência de neurotoxoplasmose, toxoplasmose ocular e de anticorpos para Toxoplasma gondii, em pacientes HIV positivos em atendimento no SAE (Serviço de Assistência Especializada em HIV/AIDS) além de correlacionar seu perfil sorológico com dados epidemiológicos e clínicos. Foram analisados 250 pacientes no período de dezembro de 2009 a novembro de 2010. A análise sorológica foi realizada pela técnica de imunofluorescência indireta, os dados epidemiológicos foram obtidos pela aplicação de um questionário e o histórico clínico, pela análise dos prontuários. A prevalência de soropositividade foi de 80%, com histórico de neurotoxoplasmose em 4,8% e de toxoplasmose ocular em 1,6%. Observou-se que 32% dos pacientes não faziam uso regular de HAART, 18,4% apresentaram contagem de linfócitos T CD4+ inferior a 200 céls/mm³ e 96,8% desconheciam os modos de transmissão da doença. Conclui-se que o risco de toxoplasmose clínica grave é alto na população estudada, tanto por reativação da infecção nos soropositivos que não fazem uso regular do HAART, quanto por primoinfecção dos soronegativos, agravado pela desinformação sobre as formas de infecção constatada na pesquisa.


Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , AIDS-Related Opportunistic Infections/epidemiology , Antibodies, Protozoan/blood , Toxoplasma/immunology , Toxoplasmosis/epidemiology , AIDS-Related Opportunistic Infections/diagnosis , Brazil/epidemiology , Cross-Sectional Studies , Fluorescent Antibody Technique, Indirect , Prevalence , Seroepidemiologic Studies , Toxoplasmosis, Cerebral/diagnosis , Toxoplasmosis, Cerebral/epidemiology , Toxoplasmosis, Ocular/diagnosis , Toxoplasmosis, Ocular/epidemiology , Toxoplasmosis/diagnosis , Viral Load
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