A doença de Chagas na infância

Pellegrino, J.; Rezende, C L

doi:10.1590/s0074-02761953000100018

Cited by 4 publications

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“…3 Others, however, note that acute Chagas' disease is characterized by diverse clinical manifestations. 4 There are a small number of publications on the acute phase of Chagas' disease; this is estimated to be 5% of the total dealing with this disease. 5 Nevertheless, there appears to be an increase of the number of acute cases recorded in some Latin American countries, which has led to predictions that the situation at the beginning of the 21st century will be similar to that in the early years of this century.…”

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Acute Chagas' disease in western Venezuela: a clinical, seroparasitologic, and epidemiologic study.

Áñez¹,

Carrasco²,

Parada³

et al. 1999

The American Journal of Tropical Medicine and Hygiene

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Abstract.A clinical, parasitologic, and serologic study carried out between 1988 and 1996 on 59 acute-phase patients in areas of western Venezuela where Chagas' disease is endemic showed 19 symptomatic patterns or groups of symptoms appearing in combination with different frequencies. The symptomatic pattern with the highest frequency was that showing simultaneously fever, myalgia, headache, and Romaña's sign, which was detected in 20% of the acute-phase patients. Asymptomatic individuals and patients with fever as the only sign of the disease made up 15% and 11.9% of the total acute cases, respectively. Statistical correlation analysis revealed that xenodiagnosis and hemoculture were the most reliable and concordant of the five parasitologic methods used; these two methods also showed the highest proportions in detecting any clinical symptomatic pattern in acute-phase patients. A similar high reliability and concordance was obtained with a direct agglutination test, an indirect immunofluorescent antibody test, and an ELISA as serologic tests, which also showed a higher proportion of positive detection of clinical patterns than parasitologic methods (P Ͻ 0.001). It is recommended that individuals coming from endemic areas showing mild and/or severe clinical manifestations should be suspected of being in contact or having been in contact with Trypanosoma cruzi, be referred for parasitologic and serologic evaluations to confirm the presumptive clinical diagnosis of acute Chagas' disease, and start specific treatment. The epidemiologic implications of the present findings are discussed and the use of similar methodology to evaluate other areas where Chagas' disease is endemic is suggested.Shortly after describing Trypanosoma cruzi, the etiologic agent of American trypanosomiasis, Carlos Chagas created the basis for future study of the disease that was named after him. He was the first to recognize the role that triatomine bugs play in the transmission of the infection and provided information about its pathology, symptomatology, epidemiology, and geographic distribution.

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