Why the study?
Do QT interval parameters predict mortality in outpatients with chronic Chagas' disease?
Population
738 outpatients in the chronic phase of Chagas' disease
Design
Cohort
Follow-up
58+/-39 months
Authors
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May support QT dispersion and LV end-systolic dimension for risk stratification in chronic Chagas disease; leaves open prospective validation before clinical use.
Do QT interval parameters predict mortality in outpatients with chronic Chagas' disease?
Electrocardiographic QT dispersion and echocardiographic LV end-systolic dimension are strong independent predictors of mortality in patients with chronic Chagas' disease.
Salles et al. (2003) studied this question.
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