- Vasovagal: provoked by fear, anxiety, pain, stress, noxious stimuli, heat exposure
- Situational: provoked by prolonged standing, coughing, urination, defecation, eating (post-prandial)
- Carotid stimulation: provoked by pressure on carotid body in neck area (e.g. tight fitting collar)
- Low risk for cardiovascular disease
- Syncopal event preceded by fear, anxiety, pain prolonged standing, carotid stimulation, urination, cough
- Feel suddenly sweaty, lightheaded/weak, blurry vision, warm
- Tends to recur in similar situations
- Recovery is usually rapid
- Symptoms may also abate if sit and/or lie down
- Absence of findings of structural heart disease or other abnormalities