<unk><unk>  arise from the truncus<unk> us as endothelial buds, during this process abnormal involution, bud positioning, or septation of the truncus<unk> us may lead to abnormal origin of the<unk><unk> 
Symptoms occur due to the path that these<unk>  take to supply the heart, some coursing between the aorta and pulmonary<unk>  which results in compression, or taking abrupt turns causing acute angles that are predisposed to obstruction
Incidence is 0.64% of births
Left circumflex from right sinus of valsalva
Single<unk>  artery from the left sinus of valsalva
Both<unk><unk>  from the right sinus of valsalva
LAD from the right sinus of valsalva
Anomalous coronary arteries
Seizure
Coronary artery vasospasm
Breath-holding spell
Left ventricular pseudoaneurysm
Hyperventilation syndrome
Implantable Cardioverter-Defibrillator complication
Pregnancy 