Stoke

Stroke
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Sudden numbness, confusion, trouble speaking, vision problems, loss of balance
Complications	Permanent disability, death
Onset	Sudden
Duration	Long-term
Types	Ischemic stroke, Hemorrhagic stroke, Transient ischemic attack
Causes	Blocked artery, burst blood vessel
Risks	High blood pressure, smoking, diabetes, high cholesterol, obesity, atrial fibrillation
Diagnosis	Physical examination, CT scan, MRI
Differential diagnosis	N/A
Prevention	N/A
Treatment	Thrombolysis, surgery, rehabilitation
Medication	N/A
Prognosis	Variable
Frequency	Common
Deaths	N/A

A stroke is a medical condition in which poor blood flow to the brain results in cell death. There are two main types of stroke: ischemic stroke, due to lack of blood flow, and hemorrhagic stroke, due to bleeding. Both result in parts of the brain not functioning properly.

Signs and Symptoms

Common symptoms of a stroke include sudden numbness or weakness in the face, arm, or leg, especially on one side of the body. Other symptoms may include sudden confusion, trouble speaking or understanding speech, sudden trouble seeing in one or both eyes, sudden trouble walking, dizziness, loss of balance or coordination, and a sudden severe headache with no known cause.

Causes

Strokes can be caused by a blocked artery (ischemic stroke) or the leaking or bursting of a blood vessel (hemorrhagic stroke). Some people may experience only a temporary disruption of blood flow to the brain, known as a transient ischemic attack (TIA), that doesn't cause lasting symptoms.

Risk Factors

Several factors can increase the risk of stroke, including:

• High blood pressure
• Smoking
• Diabetes
• High cholesterol
• Obesity
• Atrial fibrillation
• Family history of stroke
• Age (risk increases with age)
• Gender (men have a higher risk, but women are more likely to die from a stroke)

Diagnosis

A stroke is diagnosed through a combination of a physical examination and imaging tests such as a CT scan or MRI. These tests help determine the type of stroke and the area of the brain affected.

Treatment

Treatment for stroke depends on the type of stroke. For an ischemic stroke, treatment focuses on restoring blood flow to the brain. This may involve medications such as thrombolytics to dissolve clots. For a hemorrhagic stroke, treatment focuses on controlling bleeding and reducing pressure in the brain. This may involve surgery or other interventions.

Rehabilitation

After a stroke, rehabilitation is crucial to help individuals regain lost skills and function. This may include physical therapy, occupational therapy, and speech therapy.

Prevention

Preventive measures include managing risk factors such as high blood pressure, cholesterol, and diabetes, as well as adopting a healthy lifestyle with regular exercise, a balanced diet, and avoiding smoking and excessive alcohol consumption.

See Also

• Transient ischemic attack
• Cerebrovascular disease
• Brain aneurysm

External Links

• National Stroke Association
• Centers for Disease Control and Prevention - Stroke