| Nausea, diaphoresis, long prodrome, absent history of cardiovascular disease, recurrent syncope for > 4 yrs |
Neurally-mediated syncope |
| Unpleasant stimulus during/after, defecation, micturition, laughter, swallowing, coughing |
Neurally-mediated syncope |
| During/after a meal |
Postprandial hypotension |
| After assuming upright posture |
Orthostatic hypotension |
| With neck pressure |
Carotid sinus hypersensitivity |
| While supine, with history of heart failure and/or coronary artery disease |
Arrhythmic |
| During exertion |
Aortic stenosis, hypertrophic cardiomyopathy, myocardial ischemia |
| With arm exercise |
Subclavian steal |
| Confusion, tongue biting, head turning |
Seizure |
