Pathophysiology of vasovagal syncope,”Compensatory response is interrupted in a few minutes by a paradoxical withdrawal of sympathetic stimulation and a replacement by enhanced parasympathetic activity, leads to inappropriate bradycardia, vasodilation, marked decrease in BP

Pathophysiology of vasovagal syncope,”Compensatory response is interrupted in a few minutes by a paradoxical withdrawal of sympathetic stimulation and a replacement by enhanced parasympathetic activity, leads to inappropriate bradycardia, vasodilation, marked decrease in BP

cerebral perfusion”