Hernán Patricio García Mejía et al. Matheus Carvalho Alves Nogueira Bruno Mahler Mioto Nilson Tavares Poppi … Luiz Antonio Machado Cesar Luhanda Leonora Cardoso Monti Sousa Luís Roberto Palma Dallan
Introduction
Coronary fistulas (CFs) are defined as a direct anomalous connection between one or more coronary arteries with a large vessel or cardiac chamber. Most CFs drain into a lower pressure system, such as the right ventricle (RV) 40%, right atrium (RA) 26%, pulmonary artery (PA) 17%, coronary sinus 7%, and vena cava 1%. The clinical presentation will depend on the location and volume of the shunt generated by the fistula. Approximately 50% of cases are asymptomatic and, when present, may include dyspnea, palpitations, chest pain, or, in more severe cases, heart failure (HF), acute coronary syndromes, and arrhythmias.,
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