Which type of stroke is characterized by interrupted blood flow due to embolism or plaque?

The type of stroke characterized by interrupted blood flow due to embolism or plaque is known as an ischemic stroke. This occurs when a blood vessel supplying blood to the brain is obstructed, often by a clot that forms in the artery (thrombus) or travels from another part of the body (embolism). This obstruction prevents oxygen and nutrients from reaching brain cells, leading to cell death and potential neurological damage.

In the context of strokes, it's crucial to differentiate ischemic strokes from other types. Hemorrhagic strokes result from bleeding into or around the brain due to a ruptured blood vessel, which is a distinctly different mechanism. Similarly, a cerebral hemorrhage refers specifically to bleeding within the brain tissue itself, further distinguishing this condition from the lack of blood flow seen in ischemic strokes. A transient ischemic attack (TIA) is a temporary blockage of blood flow to the brain, which does not cause lasting damage, unlike an ischemic stroke where the obstruction results in more sustained brain injury.

Understanding these mechanisms is essential for paramedics, as recognizing the type of stroke can significantly influence treatment and responses during emergency situations.