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A simple risk score was developed to predict death in Chagas' heart disease and was validated in an independent cohort.

Epicardial mapping can be safely performed through a pericardial puncture in the electrophysiology laboratory.

AF 5 atrial fibrillation; LOE 5 Level of Evidence; HCM 5 hypertrophic cardiomyopathy. **A decision to perform AF ablation in an asymptomatic patient requires additional discussion with the patient because the potential benefits of the procedure for the patient without symptoms are uncertain.