Origin of syncope based on age.
Age< 70 years
- Reflex: 50 %
- Orthostatic: 5 %
- Cardio-vascular: 12 %
- Unexplained: 25 %
- Loss of consciousness without cerebral hypo-perfusion (not considered as syncope): 5 %
Age> 70 years
- Reflex: 36 %
- Orthostatic: 30 %
- Cardio-vascular: 20 %
- Unexplained: 9 %
- Loss of consciousness without cerebral hypo-perfusion (not considered as syncope): 5 %