Anginal chest pain
Syncope
Sudden death
In one study accounted for 13% of cases of sudden death in competitive athletes 
In one study accounted for 13% of cases of sudden death in competitive athletes
Anomalous coronary arteries
Seizure
Coronary artery vasospasm
Breath-holding spell
Left ventricular pseudoaneurysm
Hyperventilation syndrome
Implantable Cardioverter-Defibrillator complication
Pregnancy 