Overview
Many brain aneurysms are small and never cause problems. A burst aneurysm causes a type of stroke called subarachnoid haemorrhage, which is a medical emergency.
Symptoms
- Usually none before rupture
- A large aneurysm may cause eye pain, double vision or a drooping eyelid
- If it bursts: a sudden, severe headache, often described as the worst ever
- Neck stiffness, vomiting, sensitivity to light, confusion or loss of consciousness
Causes and risk factors
Risk factors include smoking, high blood pressure, family history, polycystic kidney disease and some connective tissue disorders.
Diagnosis
CT or MRI angiography shows the blood vessels of the brain. A catheter angiogram may be needed.
Treatment
Small, unruptured aneurysms may be monitored. Others are treated by endovascular coiling through a blood vessel or by surgical clipping. Controlling blood pressure and stopping smoking are important.
When to see a doctor
Call for emergency help immediately for a sudden, severe headache, especially with vomiting, neck stiffness, confusion or collapse.
This information is for general education and does not replace advice from a qualified doctor. For a medical emergency, call +92-51-8446666 or go to the nearest emergency department.
