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Chagas cardioembolism risk score

Clinical characteristic	Points
Any degree of left ventricular systolic dysfunction	2
Left ventricular apical aneurysm	1
Primary ST-T wave changes on 12-lead electrocardiogram	1
Age greater than 48 years old	1
Risk score	Recommended therapy
4-5 points	warfarin
3 points	warfarin*
2 points	aspirin^¶
0-1 points	no need for prophylaxis

The cardioembolic risk score for each patient is obtained by summing points for the above clinical characteristics.

* In the source document, warfarin or aspirin was recommended in these patients with risk score of 3 points (for whom the risk of cardioembolic stroke is similar to the risk of bleeding).
¶ In the source document, aspirin or no prophylaxis was recommended for a risk score of 2 points.

Data from: de Sousa AS, Xavier SS, de Freitas GR, Hasslocher-Moreno A. Prevention strategies of cardioembolic ischemic Stroke in Chagas' disease. Arq Bras Cardiol 2008; 91:280.

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