An embolism and a thrombus both involve blood vessel blockages, but they differ in their origin and movement.
Understanding Thrombus and Embolism
Here's a breakdown to clarify the difference:
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Thrombus: A thrombus is a blood clot that forms in situ within a blood vessel. It adheres to the vessel wall at the site of formation. The formation of a thrombus is called thrombosis.
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Embolus: An embolus is a clot, fat, air bubble, or other object that travels through the bloodstream. It originates from somewhere else in the body and eventually lodges in a blood vessel, causing a blockage. According to information from April 19, 2021, an embolus can consist of various materials and pose a risk of lodging elsewhere in the body.
Thrombus vs. Embolus: A Comparison
| Feature | Thrombus | Embolus |
|---|---|---|
| Definition | Blood clot formed in situ | Traveling clot or obstruction |
| Location | Forms within a blood vessel | Travels through blood vessels, lodging elsewhere |
| Composition | Primarily blood clot | Clot, fat, air bubble, other material |
| Risk | Blocks blood flow at the site of origin | Blocks blood flow at a distant site from its origin |
| Consequences | Can lead to heart attack or stroke | Can lead to heart attack or stroke, depending on location |
Implications
Both thrombi and emboli can have serious health consequences because they disrupt blood flow. A blockage can deprive tissues and organs of oxygen, potentially leading to:
- Heart attack
- Stroke
- Pulmonary embolism
- Deep vein thrombosis
