A Stroke Caused By Sudden Interruption Of Blood Flow To The Brain


What Are the Causes

If stroke the blood flow is disturbed abruptly to the brain. There are two types of stroke:

  • The most common type is called an ischemic stroke. This occurs when a blood vessel leading to the brain becomes blocked suddenly stop the blood flow.
  • The second type is called a hemorrhagic stroke. This occurs when a blood vessel in the brain ruptures, causing bleeding.

The hemorrhagic stroke is usually caused by an injury and therefore can not be predicted. However, the ischemic stroke caused by obstruction of the arteries, in the same way induced and myocardial infarction.

When becoming suddenly occlusion of one of the carotid arteries, brain cells do not receive enough oxygen. They can now work and die if the blood supply is not soon restored. The brain cells are very sensitive to lack of oxygen. If done obstruction of a large artery, caused more damage in comparison to a smaller artery.

Occlusion of the artery is usually caused by a blood clot. Blood clots are formed in the carotid arteries by rupture of the formation of the accumulation of lipids (plate) which deposited on the walls of the artery. The formation of plaque (a process called atherosclerosis) narrows the artery. When this plate is cracked, blood clot formed over the rupture, which may be whole occlude the artery.

The process of forming a blood clot on the plate is called atherothrombosis.

Atherosclerosis causes progressive narrowing of the arteries, the plate rests in the arterial wall. The atherothrombosis occurs when the plaque and blood clots crack, which cause sudden blockage of an artery which in turn causes stroke.

What are the Warning Signs of Stroke

The best workaround is prevention. To do this, you need to be aware of their risk factors and be sure that you have them under control. Also your doctor has at his disposal, various medications and procedures, which can be used to prevent a first or next stroke.

In many cases of stroke occurs without warning signs. But sometimes there are warning signs that the blood flow is temporarily disturbed to the brain. These marks usually last for a few seconds or minutes and called a transient ischemic attack or TIA.

Symptoms and Warning Signs of Stroke

  • Visual disturbances – Short blindness of an eye

– Double vision

– Blurred vision

  • Impairment Balance

– Dizziness with gait instability

– Impairment of hearing

  • Nerve Disorders

– Sudden muscle attenuation at half of the body or hand

– Numbness facial, hand or foot

  • Speech and Communication Disorders

– Sudden inability to speak

– Improper intonation speech

– Difficulty

These warning signs are not always audible and may disappear after a short time (in the case of a transient episode). Easily could the one perceive as temporary weakness. but hide a real threat of stroke.

What Are the Risk Factors

Each separate risk factor increases the risk of stroke. The combination of several risk factors increases even more significantly the risk.

Risk factors for stroke are the same as those of myocardial infarction. If you suffer a stroke, you risk to suffer a heart attack.

There are certain factors which can not be influenced, such as age, gender (men are more at risk), and family history. However, some risk factors can vary based on lifestyle choices.

With the reduction of risk factors is reduced and the risk of stroke, myocardial infarction or other vascular diseases.

The main risk factors for stroke are:

  • The high pressure
  • Smoking
  • High cholesterol
  • Overweight
  • Unhealthy diet
  • The stress
  • Lack of exercise
  • Diabetes
  • Heart disease
  • Excessive consumption of alcohol
  • Birth control pills

Women who take birth and are overweight or suffer from migraines are at greater risk of stroke.

How to Reduce the Risk of Stroke

  • Do not smoke
  • Make healthy eating
  • Exercise regularly
  • Keep your weight at a normal level
  • Avoid stress
  • Keep your bad cholesterol
  • Keep your lower its pressure
  • Avoid excessive consumption of alcohol

Patients with diabetes is very important to follow the above advice and to monitor their blood glucose regularly to reduce the risk of stroke.

Women taking birth control pills should talk with your doctor or the gynecologist to see if at risk of stroke.