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Chagas Cardiomyopathy in New Orleans and the Southeastern United States
Robert C Hsu1, Joshua Burak1, Sumit Tiwari1
1Tulane University Heart and Vascular Institute, Tulane University School of Medicine, New Orleans, LA.
Insights
Chagas disease (CD), a parasitic infection, can cause heart disease in individuals from endemic areas. Early diagnosis is crucial, especially in the US, as symptoms may mimic other cardiac conditions.
Area of Science:
- Cardiology
- Infectious Diseases
- Parasitology
Background:
- Chagas disease (CD), caused by Trypanosoma cruzi, affects millions globally and over 300,000 in the US.
- CD presents with acute symptoms like fever and myocarditis, and chronic issues including cardiac, esophageal, and colonic damage.
- Myocardial involvement in chronic CD is evident through ECG and MRI, showing inflammation and left ventricular dysfunction.
Observation:
- Two cases of CD with cardiac manifestations were identified in the Southeastern US.
- Case 1: Anginal chest pain and shortness of breath with myocardial involvement, normal coronary arteries.
- Case 2: Asymptomatic patient with echocardiogram findings of reduced ejection fraction and regional wall motion abnormalities, normal coronary arteries.
Findings:
- Both cases presented with cardiac abnormalities suggestive of ischemic heart disease but had normal coronary arteries.
- These findings highlight the potential for Trypanosoma cruzi infection to mimic typical ischemic cardiac presentations.
- The cases underscore the importance of considering CD in the differential diagnosis for unexplained heart conditions.
Implications:
- Increased immigration from endemic regions necessitates greater awareness of Chagas disease in the US.
- Clinicians should consider CD in patients with heart disease and a history of exposure to T. cruzi endemic areas.
- Prompt diagnosis and management of Chagas disease can prevent severe cardiac complications and improve patient outcomes.
Background:
Chagas disease (CD), caused by Trypanosoma cruzi, affects 6-7 million people worldwide annually, primarily in Central and South America, and >300,000 people in the United States. CD consists of acute and chronic stages. Hallmarks of acute CD include fever, myalgia, diaphoresis, hepatosplenomegaly, and myocarditis. Symptoms of chronic CD include pathologic involvement of the heart, esophagus, and colon. Myocardial involvement is identifiable by electrocardiogram and cardiac magnetic resonance imaging showing inflammation and left ventricular wall functional abnormalities.
Case Reports:
We present two cases of CD identified in a single hospital in the Southeastern United States. Case 1 presents a patient with symptoms of anginal chest pain and associated shortness of breath with myocardial involvement suggestive of ischemic infarction but normal coronary arteries. Case 2 describes a patient with no physical symptoms and echocardiogram with ejection fraction of 50% with posterolateral and anterolateral wall hypokinesis but normal coronary arteries.
Conclusion:
With a growing number of immigrants from Central and South America in the United States, it is imperative for clinicians to include CD as part of the differential diagnosis for patients presenting with heart disease who have a history of exposure to T. cruzi endemic areas.
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