Significance of dual left anterior descending coronary artery in interventional cardiology. A case report.

The variants of the left anterior descending (LAD) coronary artery are important in interpretation of coronary angiograms and in interventional procedures. The authors present a patient who had percutaneous transluminal coronary angioplasty and stent implantation to a presumed proximal LAD without the realization that dual LAd was present because of the total occlusion of the long LAD.