Coronary fistula

A coronary fistula is an abnormal connection between a coronary artery, which supplies blood to the heart muscle, and another heart chamber or blood vessel. Instead of blood flowing through the normal small vessels, it bypasses the heart tissue, potentially causing issues like reduced oxygen delivery to the heart muscle or abnormal blood flow patterns. Some fistulas are small and may not cause symptoms, while larger ones can lead to problems such as heart enlargement, fatigue, or heart failure. Treatment options depend on the size and effects of the fistula, potentially involving monitoring or surgical or minimally invasive procedures.