Left Main Coronary Artery Fistula Presenting as Heart Failure: A Case Report
BACKGROUND Coronary artery fistulas are rare and typically congenital but can result from various acquired conditions. They involve abnormal connections between a coronary artery and a cardiac chamber or vessel, often creating a left-to-right shunt. Most coronary artery fistulas are asymptomatic and found incidentally, though larger fistulas can cause symptoms like ischemia or heart failure, requiring intervention. Management depends on the fistula size and clinical findings. Many small fistulas...