Dural AVS is direct connection between brain dural arteries and veins through abnormal bunch of vessels. It drains into cerebral veins. So arterial pressure from dural arteries is directly transmitted to cerebral veins causing venous hypertension.
Patients with DAVS presents with:
1. Intracranial hemorrhage
2. Focal neurological deficit
3. Venous hypertension and raised intracranial pressure
All DAVS should be treated.
Endovascular embolization is treatment of choice.
Step 1: Femoral artery is punctured and sheath is placed in femoral artery. Then through it guiding catheter (green) is placed into neck vessel.<.strong>
Step 2: Microcatheter (yellow) is taken through guiding catheter in the feeding artery.
Step 3: DAVS is embolized with liquid embolic agent.
Step 4: Finally microcatheter, guiding catheter and sheath are removed.
CASE: 42yrs male with posterior fossa haemorrhage and Dural AV Shunt