Aneurysms

If the brain aneurysm expands and the blood vessel wall becomes too thin, the aneurysm will rupture and bleed into the space around the brain, called a subarachnoid hemorrhage. Subarachnoid hemorrhage is a complex clinical disease with high mortality and morbidity. The treatment goal for both ruptured and unruptured aneurysms is to reduce the risk of future rupture. This can be done in two ways:

Microsurgical clipping
Endovascular intervention

At Koç University Hospital we are proud of a 95% success rate in treating aneurysms through minimally-invasive and open surgery. Symptoms of a ruptured brain aneurysm usually begin with a rapid onset of "worst headache of my life". Other symptoms may include;

Stiff neck
Nausea and vomiting
Sudden change in mental status (drowsiness or loss of consciousness)
Trouble walking or dizziness
Sudden weakness and numbness
Eye sensitivity to light
Seizure
A ruptured brain aneurysm is a medical emergency. 

Unruptured brain aneurysms usually have no symptoms. Rarely, unruptured aneurysms may become large and press on nerves in the brain, causing symptoms as follows;
Blurred or double vision
A drooping eyelid
A dilated pupil
Weakness and/or numbness
Pain above and behind one eye

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