Epidemiology of Chagas' heart disease

Wanderley, Dalva Marli Valério; Corrêa, Fernando Morgan de Aguiar

doi:10.1590/s1516-31801995000200003

Cited by 21 publications

(17 citation statements)

References 11 publications

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“…In addition, case reporting is not reliable even in areas of high endemicity. Probably because of marked variations in the genetic background, parasite strain, climate, socioeconomic and related hygienic-alimentary conditions, and health care policies, the morbidity and mortality rates ascribed to Chagas' disease are extremely variable even among endemic areas of each country 6 .…”

Section: Ribeirão Preto Sp -Brazilmentioning

confidence: 99%

“…Based on a prevalence of 4.5% of T. cruzi serologically detected infection in 205 Latin American immigrants to the USA, and on estimates of the number of such immigrants, approximately half a million infected people are believed to exist now in that country 8 . Moreover, rural-urban migration from endemic areas in Brazil is believed to have brought to large cities half a million infected people in the last three decades 6 .…”

Section: Ribeirão Preto Sp -Brazilmentioning

confidence: 99%

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Chagas' heart disease

Marin-Neto¹,

Simões²,

Sarabanda³

1999

Arq. Bras. Cardiol.

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Section: Ribeirão Preto Sp -Brazilmentioning

confidence: 99%

Section: Ribeirão Preto Sp -Brazilmentioning

confidence: 99%

Chagas' heart disease

Marin-Neto¹,

Simões²,

Sarabanda³

1999

Arq. Bras. Cardiol.

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“…Although data concerning the prevalence and morbidity of Chagas disease increased in the 1980's, it is still difficult to accurately establish its geographical distribution as well as its prevalence in Latin America (Rassi et al 1989, Rey 1991, WHO 1991, Wanderley & Corrêa 1995.…”

Section: Abstract: Chagas Disease -Epidemiology -Control Program -Brmentioning

confidence: 99%

Seroprevalence of Trypanosoma cruzi Infection in Students at the Seven-Fourteen Age Range, Londrina, PR, Brazil, in 1995

Bonametti

Filho

Ramos

et al. 1998

Mem. Inst. Oswaldo Cruz

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Seropositivity for Chagas disease was evaluated in 834 children aged between 7 and 14 from the Municipal Teaching System in the district of Londrina, State of Paraná. A seroprevalence rate of 0.1% was found through the use of an indirect immunofluorescent test and an enzyme-linked immunosorbent assay. This low rate of seroprevalence provides evidence that the vectorial transmission of Chagas disease has been eliminated in Londrina. The main reason for the elimination of vectorial transmission of Trypanosoma cruzi infection, as evaluated by serological tests, may be a remarkable change in the economic structure of the northern region of Paraná in the 1960's. At that time coffee production was almost completely replaced by soy beans, wheat and grazing in the rural areas. This change deeply affected the rural ecology and caused an exodus of the population from rural to urban areas as well as a decrease in the total number of the population of that region. The measures introduced for controlling the disease through the Program of Chagas Disease Control established by the Fundação Nacional de Saúde of the Brazilian Ministry of Health, certainly, had a positive impact on the reduction of American trypanosomiasis prevalence in the area under study. However, it does not seem that this was the most relevant factor responsible for the elimination of vectorial transmission of Chagas disease in Londrina

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“…5 Chagas disease is currently ubiquitous because of alterations in the social patterns of many countries caused principally by migration from rural areas to cities and to North American countries. 4,6 In the southern United States, the disease is considered emergent, 4 in a non-endemic form. The condition can be transmitted by transfusion of blood and blood derivatives, organ transplantation, and orally; the disease may also be congenital.…”

Section: B Introductionmentioning

confidence: 99%

Delayed Gastric Emptying for Semi-Solid Diets in Patients With Chagasic Megaesophagus

Chinzon¹,

Navarro–Rodriguez²,

Dal-Paz³

et al. 2011

Gastroenterology

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OBJECTIVE:To measure the time to gastric emptying of a semi-solid diet in individuals with Chagasic megaesophagus, in comparison with a non-Chagasic control group. METHOD: The time to gastric emptying of a semi-solid diet was assessed via ultrasonography in 28 patients with Chagasic megaesophagus (grades I, II, and III) and compared to that of a control group (n ¼ 15). After measurement of antral diameter under fasting conditions, 400 mL of a semi-solid diet were administered and consecutive measurements were performed every 30 min. RESULTS: The duration of dysphagia was significantly lower in patients with megaesophagus grade I than in those with grades II or III. The time to gastric emptying was significantly increased in the megaesophagus group compared to the control group. The means of antral areas measured under fasting conditions and after maximal antral distension did not differ between the megaesophagus and control groups. CONCLUSION: The time to gastric emptying of a semi-solid diet was significantly greater in patients with Chagasic megaesophagus than in controls. The delay did not depend on the extent of dilatation of the megaesophagus or the duration of dysphagia.

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Epidemiology of Chagas' heart disease

Cited by 21 publications

References 11 publications

Chagas' heart disease

Chagas' heart disease

Seroprevalence of Trypanosoma cruzi Infection in Students at the Seven-Fourteen Age Range, Londrina, PR, Brazil, in 1995

Delayed Gastric Emptying for Semi-Solid Diets in Patients With Chagasic Megaesophagus

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