Anomalous left circumflex artery occlusion: A technical challenge in primary percutaneous coronary intervention?

Anomalies of the coronary arteries can be found in approximately 1% of patients undergoing coronary angiography. Most coronary anomalies do not result in signs, symptoms, or complications, and usually are discovered as incidental findings at the time of catheterization. Coronary anomalies may pose several challenges to the interventional cardiologist in the emergency setting, as anomalous vessels may be difficult to find or to selectively cannulate. The knowledge of anatomy and the appropriate selection of suitable technical devices allow achieving successful results in percutaneous intervention of anomalous coronary arteries also in emergency situations.