Cause | Mean prevalence (range)% |
---|---|
*See Kapoor.2 | |
Neurally mediated syncope | |
vasovagal episode | 18 (8–37) |
situational syncope | 5 (1–8) |
carotid sinus syncope | 1 (0–4) |
Psychiatric disorders | 2 (1–7) |
Orthostatic hypotension | 8 (4–10) |
Medications | 3 (1–7) |
Neurological disease | 10 (3–32) |
Cardiac syncope | |
organic heart disease | 4 (1–8) |
arrhythmias | 14 (4–38) |
Unknown | 34 (13–41) |