Sudden unexpected death as a result of anomalous origin of the right coronary artery from the left sinus of Valsalva

Anomalous Origin of Right Coronary Artery

“…6 While anomalous coronary arteries occur with low frequency, there is a high risk of sudden death due to myocardial ischemia and resultant arrhythmia associated with them. 7 Various mechanisms have been postulated to cause the aforementioned ischemia including: Origin in an acute angle and folding or occlusion caused by the angulation at the point of coronary artery emergence, 8 coronary spasm resulting from its torsion movement, 8 mechanical compression of the anomalous artery between the pulmonary and aortic trunks during physical exertion, 5 and an intramural origin of the coronary artery from within the aortic tunica media. 8 The majority of these complications may be exacerbated during or immediately after exercise, as exercise leads to compression of coronary arteries as well as increasing the preexisting angulation of the proximal portion of the anomalous vessel.…”

Two Cases of Successful Primary Percutaneous Coronary Intervention in Patients With an Anomalous Right Coronary Artery Arising From the Left Coronary Cusp

“…[3][4][5][6][7] Selective catheterization of an anomalous RCA may be difficult because of the unusual location and the noncircular luminal orifice of this anomaly. Because there are no standardized guidelines to select a catheter for an anomalous coronary artery, the anatomy of this anomaly and the operator's preferences are key factors for successfully performing CAG.…”

Myocardial Ischemia Induced by Anomalous Aortic Origin of the Right Coronary Artery in a Patient with Atrial Septal Defect.

“…[1][2][3][4][5][6] Its incidence ranges from 0.61% to 1.3%. 8,9) Concerning the type of anomalous origin of the coronary artery, sudden death was the most common when the left coronary artery ran between the aorta and pulmonary trunk.…”