Statistics about brain aneurysm:
About 90% of all brain aneurysms produce no symptoms
Brain aneurysms are most prevalent in people ages 35 – 60, but can occur in children as well. The median age when aneurysmal hemorrhagic strokeoccurs is 50 years old and there are typically no warning signs.
4 out of 7 people who recover from a ruptured brain aneurysm will have disabilities.
Most aneurysms are small, about 1/8 inch to nearly one inch, and an estimated 50 to 80 percent of all aneurysms do not rupture during the course of a person’s lifetime. Aneurysms larger than one inch are referred to as “giant” aneurysms and can pose a particularly high risk and can be difficult to treat.
1 in 4 survivors of a rupture experience some permanent disability
Ruptured brain aneurysms account for 3 – 5% of all new strokes.
The annual rate of rupture is approximately 8 – 10 per 100,000 people or about 30,000 people in the United States suffer a brain aneurysm rupture. There is a brain aneurysm rupturing every 18 minutes. Ruptured brain aneurysms are fatal in about 40% of cases. Of those who survive, about 66% suffer some permanent neurological deficit.