Subtitle: Arterial and Venous Thrombosis
Thrombosis is the formation of a blood clot within a blood vessel, obstructing the flow of blood. It can occur in both arterial and venous blood vessels. Both types of thrombosis can lead to serious medical issues, such as stroke, heart attack, and pulmonary embolism.
Arterial Thrombosis
Arterial thrombosis occurs when a clot forms in an artery, blocking the flow of oxygen-rich blood to an organ or tissue. Arterial thrombosis is often caused by atherosclerosis, a condition in which fatty deposits build up on the artery walls, narrowing the passage and restricting the flow of blood. Arterial thrombosis can also be caused by trauma or injury to the artery.
Venous Thrombosis
Venous thrombosis occurs when a clot forms in a vein, blocking the flow of oxygen-depleted blood back to the heart. It is most commonly caused by inactivity, such as sitting or lying down for long periods of time. Other causes include a family history of blood clots, certain medications, and certain medical conditions.
Which is More Common?
Venous thrombosis is more common than arterial thrombosis. Venous thrombosis affects approximately 1 in 1,000 people in the United States each year. Arterial thrombosis is less common, but it can be more serious. Approximately 1 in 10,000 people in the United States are affected by arterial thrombosis each year.