A brain aneurysm is not a type of stroke. A brain aneurysm is a dilatation of an artery of the brain that appears at a weak spot of the artery. A brain aneurysm can rupture and create bleeding in the brain (a type of stroke called subarachnoid hemorrhage).
A ruptured brain aneurysm (subarachnoid hemorrhage) is an emergency. There is a need for emergent treatment of the aneurysm by coiling (endovascular, less invasive) or clipping (craniotomy, brain surgery) to prevent re-rupture of the aneurysm. The person with a ruptured brain aneurysm needs to be admitted to the hospital and monitored in an intensive care setting (ICU) to prevent complications associated with the brain bleeding.
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