Morbidity of Chagas heart disease in the microregion of Rio Negro, Amazonian Brazil: a case-control study
Mem. Inst. Oswaldo Cruz
; 108(8): 1009-1013, 6/dez. 2013. tab, graf
Article
in English
| LILACS
| ID: lil-697154
Responsible library:
BR1.1
ABSTRACT
A case-control study on the morbidity of Chagas heart disease was carried out in the municipality of Barcelos in the microregion of the Rio Negro, state of Amazonas. One hundred and six individuals, who were serologically positive for Trypanosoma cruzi infection, as confirmed by at least two techniques with different principles, were matched according to age and sex with an equal number of seronegative individuals. The cases and controls were evaluated using an epidemiological questionnaire and clinical, electrocardiograph and echocardiograph examinations. In the seroepidemiological evaluation, 62% of the interviewees recognised triatomines and most of them confirmed that they had seen these insects in the piassava plantations of the riverside communities of the Negro River tributaries. Of the seropositive patients, 25.8% affirmed that they had been stung by the triatomines and 11.7% denied having been stung. The principal clinical manifestations of the seropositive individuals were palpitations, chest pain and dyspnoea upon effort. Cardiac auscultation revealed extrasystoles, bradycardia and systolic murmurs. The electrocardiographic alterations were ventricular extrasystoles, left and right bundle branch block, atrioventricular block and primary T wave alterations. The echocardiogram was altered in 22.6% of the seropositive individuals and in 8.5% of the seronegative individuals.
Full text:
Available
Collection:
International databases
Health context:
Sustainable Health Agenda for the Americas
/
SDG3 - Health and Well-Being
/
Neglected Diseases
Health problem:
Goal 9: Noncommunicable diseases and mental health
/
Target 3.3: End transmission of communicable diseases
/
Chagas Disease
/
Neglected Diseases
Database:
LILACS
Main subject:
Chagas Cardiomyopathy
Type of study:
Diagnostic study
/
Observational study
/
Risk factors
Limits:
Animals
/
Humans
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2013
Document type:
Article
Affiliation country:
Brazil