Echocardiographic Study of the Coronary Sinus in the Indeterminate Form of Chagas Disease.

Introduction: We investigated the occurrence of coronary sinus abnormalities in the indeterminate form of Chagas disease (CD).

Methods: Differences between the maximum and minimum diameters of the coronary sinus (∆%) on echocardiography were evaluated in individuals with the indeterminate form of CD (n=14) and those without (n=16) CD. The association of the difference with abnormalities detected by echocardiography and myocardial scintigraphy was assessed.

Results: The mean Δ% values did not differ significantly between the groups. There was no correlation of the measurements with echocardiographic and myocardial scintigraphy findings.

Conclusions: The coronary sinus evaluation revealed no differences between the groups.