Anterior interventricular branch of left coronary artery
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![Tight, critical stenosis (95%) of the proximal LAD in a patient with Wellens' Warning](/Images/godic/202502/06/Wellens'_Warning3750.gif")
![](/Images/godic/202502/06/Heart_coronary_territories3750.jpg")
The left anterior descending artery (also LAD, anterior interventricular branch of the left coronary artery, or anterior descending branch), also known as the "widow maker", is an artery of the heart.