What is the most common etiology of stroke?

Ischemic stroke is the most common type. It is usually caused by a blood clot that blocks or plugs a blood vessel in the brain. This keeps blood from flowing to the brain. Within minutes, brain cells begin to die.

What is the etiology of ischemic stroke?

Ischemic stroke occurs when a blood clot blocks or narrows an artery leading to the brain. A blood clot often forms in arteries damaged by the buildup of plaques (atherosclerosis). It can occur in the carotid artery of the neck as well as other arteries. This is the most common type of stroke.

What is the most common presentation of stroke?

The most common presenting symptoms of ischemic stroke are speech disturbance and weakness on one-half of the body. The most common conditions that can mimic a stroke are seizure, conversion disorder, migraine headache, and hypoglycemia.

What are the symptoms of thrombotic stroke?

Thrombotic Stroke Symptoms

• Slurred speech.
• Loss in vision.
• Dizziness.
• Nausea/vomiting.
• Confusion.
• Problems understanding speech.
• Weakness, numbness, or paralysis on one side of the body.
• Facial drooping.

What is the etiology of an ischemic stroke?

Ischemic stroke is a well known complication of cardiac valvular pathology. Its pathogenesis is generally accepted to be an embolism from the diseased native valve or the prosthetic valve that replaced it.

What causes a transient ischemic stroke ( TIA )?

Some people may have only a temporary disruption of blood flow to the brain, known as a transient ischemic attack (TIA), that doesn’t cause lasting symptoms. Ischemic stroke occurs when a blood clot blocks or narrows an artery leading to the brain. A blood clot often forms in arteries damaged by the buildup of plaques (atherosclerosis).

What causes a lacunar infarction or embolic stroke?

Lacunar infarctions are often found in people who have diabetes or high blood pressure. Embolic strokes are usually caused by a blood clot that forms elsewhere in the body (embolus) and travels through the bloodstream to the brain. Embolic strokes often result from heart disease or heart surgery and occur rapidly and without any warning signs.

How can you tell the etiology of a stroke?

The former may be due to arterial occlusion or stenosis, the latter to leakage or rupture of an artery. Computed tomography (CT) and magnetic resonance imaging (MRI) have shown that this basic differentiation cannot be reliably made from the history and clinical examination alone.