What you need to know about cholesterol and stroke

Hundreds of thousands of Americans suffer from a stroke each year. Many of them don’t survive or develop long-term disabilities, and strokes are often preventable. Consider talking to a physician at West Hills Hospital about your risk of stroke. Your doctor may recommend having a cholesterol test. Remember that if you do experience any possible symptoms of stroke, you should call 911 immediately to request emergency care.

How stroke occurs
There are two primary categories of stroke: Ischemic and hemorrhagic. Hemorrhagic stroke occurs when a blood vessel leaks and bleeds on the brain. Ischemic strokes occur when a blood vessel supplying blood to the brain becomes obstructed, depriving part of the brain of its crucial supply.

Most strokes are ischemic strokes. Many medical problems can contribute to clot formation and, consequently, a stroke. One of them is having high cholesterol levels.

How cholesterol causes atherosclerosis
Cholesterol is a waxy type of fat that’s found throughout your body. If you have too much cholesterol in your body, you’re at an increased risk of atherosclerosis.

Atherosclerosis is a condition in which the blood vessels get clogged up with fatty deposits called plaque. Plaques can harden and cause the arteries to narrow. If this happens to the carotid arteries, atherosclerosis raises the risk of stroke.

How atherosclerosis can cause stroke
Eventually, a plaque in the carotid arteries can rupture. Platelets group together at the site and form a blood clot. This blood clot can prevent blood from getting through the artery to the brain, causing a stroke.

It’s also possible for part of a plaque to break off from the arterial wall. The bloodstream will then carry it toward the brain until it reaches a blood vessel that’s too small to allow it to pass through. This is another way that a blocked artery can develop, causing stroke.

Here at West Hills Hospital , we’re firmly committed to doing everything possible to save lives. Our neurologists and neurosurgeons coordinate with our emergency care team and the EMS team to provide rapid responses to stroke patients arriving at our hospital in West Hills. Call 911 if you have a medical emergency, or you can direct your non-emergent questions to a registered nurse at (818) 676-4321.

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