Intracranial Venous Thrombosis Flashcards
1
Q
Risk factors of an IC venous thrombosis?
A
Pregnancy
Oral contraceptive
Head injury
Blood dyscrasia
Malignancy
Recent LP
2
Q
Which sinuses are most commonly affected?
A
Sagittal sinus (about half)
Lateral sinus
Cavernous sinus
3
Q
Symptoms of sagittal sinus VT?
A
Headache Vomiting Seizures Venous infarction - Hemiplegia
4
Q
Symptoms of lateral sinus VT?
A
Headache
Vomiting
Seizures
Focal CNS signs
5
Q
Symptoms of cavernous sinus VT?
A
Headache Proptosis Oedematous eyelids Opthalmoplegia Loss of vision
Papilloedema
6
Q
DDx?
A
SAH
Meningitis
Migraine
7
Q
Tests for venous sinus thrombosis?
A
CT/MRI head
- If normal do LP to rule out meningitis
- Measure opening CSF pressure
8
Q
What is diagnostic about the opening pressure?
A
If CSF pressure high and headache persists with no signs of an SAH then probs ICVT
9
Q
Pharma treatment?
A
Maybe heparin??
Selective catheterisation fibrinolytics?
Seek expert help
10
Q
What usually causes death?
A
Herniation
