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Chagas' heart disease: evolutive evaluation of electrocardiographic and echocardiographic parameters in patients with the indeterminate form
- Source :
- Arquivos Brasileiros de Cardiologia, Vol 77, Iss 1, Pp 59-62 (2001)
- Publication Year :
- 2001
- Publisher :
- Sociedade Brasileira de Cardiologia (SBC), 2001.
-
Abstract
- OBJECTIVE: To identify and associate potential electrocardiographic and echocardiographic changes in patients with the indeterminate form of Chagas' disease during long-term follow-up. METHODS: One hundred sixty patients underwent standard electrocardiography and two-dimensional guided M-mode echocardiography for left ventricular ejection fraction determination. Patients were followed up for 98.6±30.4 months, undergoing repeat electrocardiographic studies at 6-month intervals and echocardiographic studies at 12-month intervals. RESULTS: Based on the electrocardiographic findings, the patients were divided into group I, 125 patients (78.6%) with normal electrocardiograms throughout follow-up, and group II, 34 patients (21.3%) who developed electrocardiographic changes. Group II was further divided into group IIA (9 patients, 5.6%) with permanent electrocardiographic changes, group IIB (14 patients, 8.8%) with transitory electrocardiographic changes, and group IIC (11 patients, 6.9%) with changes appearing only on the final electrocardiogram. Left ventricular ejection fractions remained normal in the entire population studied and did not differ among groups. CONCLUSION: The indeterminate form of Chagas' disease clearly represents a benign condition with a favorable long-term prognosis. Although some patients develop electrocardiographic changes, left ventricular systolic function is well preserved.
Details
- Language :
- English, Portuguese
- ISSN :
- 0066782X and 16784170
- Volume :
- 77
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Arquivos Brasileiros de Cardiologia
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.bf13951e4f4d416ca5dc8f772002e5ea
- Document Type :
- article
- Full Text :
- https://doi.org/10.1590/S0066-782X2001000700006