Final answer:
Aneurysms pose a significant danger due to their potential to rupture, causing hemorrhagic strokes, severe bleeding, increased pressure on the brain, and possibly death. Hemorrhagic strokes are more likely to be fatal than other types of strokes, and aneurysms can be exacerbated by conditions like atherosclerosis.
Step-by-step explanation:
The big danger with aneurysms of any type is that they may rupture, leading to severe internal bleeding and resulting in life-threatening complications such as hemorrhagic strokes. When an aneurysm ruptures in the brain, it can cause bleeding in the brain, which applies pressure and damages brain tissue, potentially causing a loss of brain function and eventually, if left untreated, death. Surgery may be necessary to repair the damaged vessel or relieve pressure on the brain by opening the cranium. Aneurysms are associated with atherosclerosis, a condition that narrows arteries and can increase the risk of strokes and myocardial infarctions.
A specific type of stroke related to aneurysms is the hemorrhagic stroke, which occurs when an aneurysm in a brain artery bursts, leading to bleeding within the cranial vault. Hemorrhagic strokes are less common than ischemic strokes, but they have a higher fatality rate. Risk factors such as high blood pressure, high cholesterol, and smoking can increase the likelihood of aneurysms and subsequent strokes.