Quick Answer
Vascular dementia is caused by blood vessel damage reducing brain blood flow — it's preventable and progression can be slowed with risk factor control.
Medically reviewed by Dr. Jitendra Prasad Yadav • NMC 8029 • Kathmandu Neurology Clinic & Cognitive Center
Vascular dementia is cognitive decline caused by cerebrovascular disease — reduced blood flow to the brain from strokes, chronic small vessel disease, or sustained hypoperfusion. It is the second most common cause of dementia after Alzheimer's disease, and unlike Alzheimer's, it is substantially preventable and treatable.
Causes
Large vessel strokes (multiple infarcts), small vessel disease (lacunar infarcts, white matter changes from hypertension/diabetes), strategic single infarcts (thalamus, angular gyrus), chronic cerebral hypoperfusion (heart failure, severe carotid stenosis), cerebral amyloid angiopathy.
Symptoms
Stepwise decline (sudden drops after strokes rather than gradual decline), executive dysfunction (planning, organizing, judgment) out of proportion to memory loss, slowed processing speed, gait disturbance, urinary symptoms. Often coexists with Alzheimer's pathology (mixed dementia).
Prevention and treatment
The most modifiable dementia — control blood pressure, blood sugar, cholesterol; treat atrial fibrillation; quit smoking; exercise; Mediterranean diet. Secondary prevention after stroke is critical. Cholinesterase inhibitors and memantine may help symptoms (same as Alzheimer's). Cognitive rehabilitation and caregiver support essential.
When to seek professional evaluation
Vascular dementia is the most preventable dementia — controlling blood pressure, diabetes and cholesterol dramatically reduces risk.
This guide is educational and does not replace individual medical advice.
Frequently asked questions
Answers reviewed by Dr. Jitendra Prasad Yadav • MBBS, MD (Internal Medicine), FICN (Neurology), FCNV, FIHM • NMC 8029
Early discussion is helpful when concerns affect daily life; screening approach is individualized.
No; occasional lapses, stress-related memory changes, and other conditions can affect memory. Persistent functional impact warrants evaluation.
Migraine is a neurological condition; headache is one feature. Associated symptoms and functional impact are important for diagnosis.
Aura refers to visual, sensory, or speech symptoms that precede the headache in some people. Both types are migraine; the presence of aura may influence management discussion.
More: All FAQs → · Ask Dr. Jitendra →
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References & Review
Reviewed by Dr. Jitendra Prasad Yadav • Last reviewed: 2026-11-10
- International Classification of Headache Disorders, 3rd edition (ICHD-3).
- Harrison's Principles of Internal Medicine — Neurology sections.
- American Academy of Neurology guidelines for selected conditions (where applicable).
Content is educational and aligns with standard medical references; individual evaluation may vary. External links provide context and do not imply endorsement.