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Opportunistic diseases in HIV-infected patients have changed since the introduction of highly active anti-retroviral therapy (HAART). This study aims at evaluating the frequency of associated diseases in patients with AIDS admitted to an university hospital of Brazil, before and after HAART. The medical records of 342 HIV-infected patients were reviewed and divided into two groups: group 1 comprised 247 patients before HAART and, group 2, 95 patients after HAART. The male-to-female rate dropped from 5:1 to 2:1for HIV infection. There was an increase in the prevalence of tuberculosis and toxoplasmosis, with a decrease in Kaposi's sarcoma, histoplasmosis and cryptococcosis. A reduction of in-hospital mortality (42.0% vs. 16.9%; p = 0.00002) has also occurred. An agreement between the main clinical diagnoses and autopsy findings was observed in 10 out of 20 cases (50%). Two patients with disseminated schistosomiasis and 2 with paracoccidioidomycosis are reported. Overall, except for cerebral toxoplasmosis, it has been noticed a smaller proportion of opportunistic conditions related to severe immunosuppression in the post HAART group. There was also a significant reduction in the in-hospital mortality, possibly reflecting improvement in the treatment of the HIV infection. O espectro das doenças oportunistas em pacientes com aids vem se modificando desde a introdução da terapia antiretroviral altamente eficaz (HAART). O objetivo deste estudo é o de avaliar o perfil das afecções oportunistas em pacientes com aids internados em um hospital universitário do Brasil, comparando os períodos pré e pós-utilização da terapia HAART. Para tanto, revisaram-se os prontuários médicos de 342 pacientes infectados pelo HIV, dividindo-os em dois grupos: grupo 1, composto de 247 pacientes pré-HAART e grupo 2, composto de 95 pacientes pós-HAART. A relação homem-mulher caiu de 5:1 para 2:1. Houve aumento da prevalência da tuberculose e da toxoplasmose, com redução da prevalência do sarcoma de Kaposi, da histoplasmose e da criptococose. Observou-se ainda significativa redução da mortalidade intra-hospitalar (42% vs. 16,9%; p = 0,00002). A concordância entre o principal diagnóstico clínico e anatomopatológico foi observada em 10 de 20 pacientes necropsiados (50%). São relatados dois pacientes com esquistossomose disseminada e dois com paracoccidioidomicose. Em conclusão, excetuando-se a toxoplasmose, houve redução das doenças oportunistas relacionadas à imunossupressão grave nos pacientes pós-HAART. Observou-se significativa redução da mortalidade intra-hospitalar, possivelmente refletindo a melhora do tratamento dos pacientes HIV-positivos em nosso meio.

We report a case of tropical pyomyositis in a boy who presented with a severe febrile illness associated with diffuse erythema, and swelling in many areas of the body which revealed on operation extensive necrotic areas of various muscles that required repeated débridement. The patient gave a history of contact with dogs, and an ELISA test for Toxocara canis was positive. He also presented eosinophilia and high serum IgE levels. Staphylococcus aureus was the sole bacteria isolated from the muscles affected. We suggest that tropical pyomyositis may be caused by the presence of migrating larvae of this or other parasites in the muscles. The immunologic and structural alterations caused by the larvae, in the presence of concomitant bacteremia, would favour seeding of the bacteria and the development of pyomyositis.