Atrial fibrillation (AF), a type of supraventricular
arrhythmia increases the
risk of
thromboembolism.
Chagas disease has been reported in the Brazilian
Amazon region over approximately 20 years. Cardiac
abnormalities are recorded in at least 50% of
patients and among these, 3.3% develop AF. We describe a case of a 41-year-old man from Muaná, Pará
State,
who reported a 30-day
history of a febrile illness. Acute
Chagas disease was confirmed, and an
electrocardiogram revealed AF. He was treated with
antiparasitic and
anti-arrhythmic drugs, beta blockers, and
anticoagulants. Reversion to sinus rhythm was observed at his 9-month follow-up.