A brain aneurysm is a silent but potentially serious condition that many people live with—often without knowing it. With better awareness, early diagnosis, and timely treatment, outcomes today are far better than ever before.
What Is a Brain Aneurysm?
A brain aneurysm (also called a cerebral aneurysm) is a weak, bulging area in the wall of a brain artery. Over time, blood pressure can cause this weak spot to balloon out, much like a thin area on a tyre.
Most aneurysms are small and may never cause problems. However, if an aneurysm ruptures, it can lead to bleeding in the brain, a life-threatening emergency.
Why Do Brain Aneurysms Occur?
In many cases, the exact cause is unknown, but certain factors increase the risk: High blood pressure
Smoking
Family history of brain aneurysms
Advancing age (more common after 40 years)
Female gender
Certain connective tissue disorders
Previous brain aneurysm
Symptoms: Often Silent, Sometimes Sudden
Unruptured Aneurysm
Most unruptured aneurysms cause no symptoms and are discovered incidentally during scans done for other reasons.
Occasionally, larger aneurysms may cause:
Persistent headache
Blurred or double vision
Pain around the eye
Facial numbness
Ruptured Aneurysm (Medical Emergency )
A ruptured aneurysm causes subarachnoid hemorrhage, and symptoms are dramatic: Sudden, severe headache (“worst headache of life”)
Vomiting
Loss of consciousness
Neck stiffness
Seizures
Immediate medical attention can be life-saving.
How Is a Brain Aneurysm Diagnosed?
Modern imaging has made diagnosis safer and more accurate:
CT scan / MRI brain
CT angiography (CTA)
MR angiography (MRA)
Digital Subtraction Angiography (DSA) – gold standard in selected cases
Treatment Options
Treatment depends on:
Size and location of the aneurysm
Risk of rupture
Patient’s age and overall health
1. Observation
Small, low-risk aneurysms may be monitored with periodic scans and strict blood pressure control.
2. Endovascular Treatment (Coiling / Flow Diverters)
Minimally invasive
Done through blood vessels without opening the skull
Suitable for many aneurysms
3. Microsurgical Clipping
Open surgery where a clip is placed across the aneurysm neck
Offers a durable, permanent solution in selected cases
Your neurosurgeon will recommend the best option tailored to you.
Can Brain Aneurysms Be Prevented?
While not all aneurysms can be prevented, risk can be reduced by:
Controlling blood pressure
Quitting smoking
Maintaining a healthy lifestyle
Regular follow-up if there is a family history
Living With a Brain Aneurysm
A diagnosis of a brain aneurysm can be frightening—but it’s important to remember:
Many aneurysms never rupture
Early detection saves lives
Treatment outcomes today are excellent in experienced centers
Final Message
If you or a loved one experiences sudden severe headache or unexplained neurological symptoms, do not ignore them. Early consultation with a neurosurgeon can make all the difference.
Awareness is the first step toward prevention and cure.
Dr. Tejesh Shavi
MBBS, DrNB Neurosurgery, FINR (SNVI)
Consultant – Interventional Neurosurgeon
