What is a Lacunar Stroke?


Many of us associate slurred speech and impaired movement when thinking of stroke symptoms, but there is also another type of stroke that is much harder to spot. Termed a “silent stroke,” a lacunar stroke may not produce any outside symptoms — and in many cases, goes unnoticed.

A lacunar infarct (also known as lacunar stroke) is a type of stroke that occurs when one of the arteries supplying blood to the brain gets blocked. During a silent stroke, there usually aren’t any symptoms because the brain cells which control vital functions, like speech and movement, aren’t affected. In fact, very often individuals who suffer a lacunar infarct are often completely unaware they have suffered a stroke. These silent strokes, which affect an estimated 8 million to 11 million Americans each year, are generally only detected through brain scans.

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