Part of the Contemporary Cardiology book series (CONCARD)


Syncope is defined as transient loss of consciousness associated with the loss of postural tone that is a result of sudden transient and inadequate cerebral blood flow; an acute fall in systolic blood pressure to less than 70 mmHg causes an interruption of cerebral blood flow for more than 8 seconds. Syncope is a common problem representing up to 1% of medical admissions to general hospitals and 3 to 7% of all U.S. emergency room visits.


Ventricular Tachycardia Structural Heart Disease Tilt Testing Vasovagal Syncope Sinus Node Dysfunction 
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