Duplication of the Left Anterior Descending Artery: Anatomical Findings From Cadaveric Dissection

The anterior interventricular branch (AIB) is a branch of the left coronary artery that runs obliquely toward the apex of the heart in the anterior interventricular groove. Of all the coronary arteries, the AIB has the most constant course. Duplicated anterior interventricular branch (AIB) is a rare congenital condition characterized by the presence of two distinct segments of this blood vessel in the anterior interventricular groove: one short and one long. Recognizing and reporting duplication of the left anterior descending coronary artery is helpful for optimal management of coronary patients with this condition. Duplicate Atrial fibrillation is more prevalent in women, and studies have also linked this variation to the presence of myocardial bridging and left coronary dominance.