Quick Answer
CVST causes stroke-like symptoms from venous clots — most common in young women. Highly treatable with anticoagulation — early diagnosis is key.
Medically reviewed by Dr. Jitendra Prasad Yadav • NMC 8029 • Kathmandu Neurology Clinic & Cognitive Center
Cerebral venous sinus thrombosis (CVST) is a rare form of stroke caused by blood clots forming in the venous sinuses — the large veins that drain blood from the brain. Unlike typical ischemic stroke (arterial), CVST affects the venous system and has different risk factors, symptoms and treatment. It is highly treatable and most patients recover well.
Risk factors
Hypercoagulable states (genetic thrombophilia, antiphospholipid syndrome), hormonal factors (pregnancy, postpartum, oral contraceptives — hence higher in young women), dehydration, infection, cancer, inflammatory diseases, head trauma.
Symptoms
Headache (often severe, progressive — the most common symptom), seizures, focal neurological deficits (weakness, speech problems), altered consciousness, papilledema, visual disturbances. Symptoms may develop over days to weeks — subacute onset is characteristic.
Diagnosis and treatment
MRI with MR venography or CT venography shows the clot. Lumbar puncture may show elevated opening pressure. Treatment: anticoagulation (heparin, then warfarin or DOACs) — even with hemorrhagic transformation, anticoagulation is generally indicated. Endovascular thrombectomy for severe cases. Treatment of underlying cause essential. Prognosis: ~80% recover well with treatment.
When to seek professional evaluation
CVST is a treatable stroke mimic — young patients with progressive headache and neurological symptoms need urgent evaluation.
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
Note time of onset, call emergency services, do not give food/drink or leave the person alone.
TIA symptoms resolve, but it signals high short-term stroke risk. Urgent evaluation and prevention planning are essential.
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.
FAST: Face droop, Arm weakness, Speech change, Time to emergency. TIA (transient deficit that resolves) is also an emergency — 10–20% have stroke within 90 days. At the clinic, secondary prevention (antiplatelet/anticoagulant, blood pressure, statin, diabetes control) and rehabilitation planning follow hospital dischar…
Yes. Short or fragmented sleep impairs memory consolidation and lowers migraine threshold. Snoring with apneas fragments sleep and fragments cognition. Dr. Jitendra screens sleep duration, regularity, snoring and caffeine, and refers for sleep study when indicated — often before escalating headache or memory medicines.
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.