Coronary artery fistulae are an uncommon abnormality of the coronary arteries, but when hemodynamically significant can present as angina, dyspnea, and arrhythmia as a rare cause of functional myocardial ischemia via 'coronary steal phenomenon'.
Keywords: angina; coronary artery fistula; coronary steal; left main ischemia; ventricular tachycardia.
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