Dementia – What causes Vascular Dementia?
Dementia – what causes vascular Dementia?
What causes vascular dementia?
Like other organs of the body the brain relies upon good blood supply for energy and oxygen.Vascular dementia is characterised by reduced off to the brain. The consequence of this is that nerve cells start to become deprived of vital nutrients and oxygen. This leads to poorly functioning nerve cells and eventual cell death.
There are three reasons for reduce blood flow to the brain:
- Subcortical vascular dementia: As I have discussed previously in other disease area presentations smoking, high blood pressure, and diabetes can increase the risk of the narrowing of blood vessels that supply food and oxygen to organs. A form of vascular dementia called subcortical vascular dementia occurs when or blood vessels that run to the brain become narrowed. This narrowing other reduces or blocks supply to affected regions in the brain.Subcortical vascular dementia is civil for the majority of vascular dementia cases in the UK, and is more prevalent in who have high blood pressure, diabetes, or smoke tobacco.
- Post stroke dementia is when a person suffered a stroke and blood flow to specific region in the brain has been disrupted due to that blood clot.
- Multi infarct dementia occurs a person has several mini strokes that cause widespread brain damage.