Why does cardiogenic syncope occur?

Cardiogenic syncope may be caused by arrhythmia, coronary heart disease, pacemaker disorders and other reasons.

1. Arrhythmia such

as sick sinus syndrome, severe atrioventricular block, paroxysmal ventricular tachycardia, etc., these reasons may induce arrhythmia, resulting in effective ejection of the heart reduced or stopped, insufficient cardiac output, and then cause cerebral ischemia, induced syncope.

2. Coronary

heart disease patients if after vascular reconstruction, can not improve the myocardial lesions leading to arrhythmia, may also cause syncope.

3. Pacemaker disorders in

patients with permanent pacemakers or cardioverter defibrillators, if the instrument fails, may also induce arrhythmia, resulting in myocardial ischemia, triggering cerebral ischemia, and eventually syncope.