Editing Cardiac arrest (section)

==== Non-atherosclerotic coronary artery abnormalities ====

Abnormalities of the coronary arteries not related to atherosclerosis include inflammation (known as coronary [[arteritis]]), [[embolism]], [[vasospasm]], mechanical abnormalities related to connective tissue diseases or trauma, and congenital [[Coronary artery anomaly|coronary artery anomalies]] (most commonly anomalous origin of the left coronary artery from the pulmonary artery). These conditions account for 10-15% of cardiac arrest and sudden cardiac death.<ref name="Saunders-2015" />
* Coronary arteritis commonly results from a pediatric febrile inflammatory condition known as [[Kawasaki disease]]. Other types of [[vasculitis]] can also contribute to an increased risk of sudden cardiac death.
* Embolism, or clotting, of the coronary arteries most commonly occurs from septic emboli secondary to endocarditis with involvement of the aortic valve, tricuspid valve, or prosthetic valves.
* [[Coronary vasospasm]] may result in cardiac arrhythmias, altering the heart's electrical conduction with a risk of complete cardiac arrest from severe or prolonged rhythm changes.
* Mechanical abnormalities with an associated risk of cardiac arrest may arise from coronary artery dissection, which can be attributed to [[Marfan syndrome]] or trauma.<ref name="Saunders-2015" />