Chagas heart disease: A contemporary review

Area of Science:

• Infectious Diseases
• Cardiology
• Parasitology

Background:

• Chagas disease is a parasitic infection endemic to the Americas, now a global health concern due to migration.
• While acute infection is often mild, chronic Chagas disease can lead to cardiomyopathy years later.
• Susceptibility and progression to cardiomyopathy are influenced by host and parasite factors.

Purpose of the Study:

• To highlight the current understanding of Chagasic cardiomyopathy.
• To emphasize the role of advanced imaging in early detection.
• To underscore the challenges in treating chronic Chagasic cardiomyopathy.

Main Methods:

• Review of current literature on Chagas disease and its cardiac manifestations.
• Analysis of diagnostic capabilities of advanced imaging techniques.
• Discussion of prognostic factors and treatment challenges.

Main Results:

• Current imaging can identify cardiac autonomic denervation, perfusion abnormalities, and myocardial fibrosis early.
• Despite early detection, prognosis for Chagasic cardiomyopathy remains poor.
• Life-threatening ventricular arrhythmias are a significant risk in early stages.

Conclusions:

• Chagasic cardiomyopathy presents a significant global health challenge with poor prognosis.
• Early detection through advanced imaging is possible but does not guarantee improved outcomes.
• Further research is critically needed for effective treatment strategies for chronic Chagasic cardiomyopathy.