What is cerebral ischemia?
Cerebral ischemia is a complication caused by lack of oxygen to the brain. This complication can be temporary, for example, transient cerebral ischemia caused by constriction of cerebral vessels, or it can be permanent, such as heart attack or stroke caused by clotting or embolism in one of the main arteries of the brain. This disease causes a decrease in bone density, calcium homeostasis disorder, and increased fractures. It gets hyped.
Ischemic stroke occurs in which people?
Ischemic stroke occurs in all people, from children to adults, but the chance of its occurrence is higher in some people.
Aging is one of the main risk factors in such a way that about two thirds of ischemic strokes occur in people over 65 years old.
Some medical conditions increase the risk of ischemic stroke, including:
high blood pressure (hypertension)
high cholesterol (hyperlipidemia)
Type 2 diabetes
History of stroke
History of heart attack
Cardiac arrhythmias such as atrial fibrillation
What effect does an ischemic stroke have on the body?
When an ischemic stroke occurs, the blood flow to a part of the brain is interrupted, as a result, that part of the brain cannot supply the oxygen it needs. By stopping the process of receiving oxygen, the brain cells lose their proper function.
If brain cells go too long without oxygen, they begin to die.
If a significant amount of brain cells are destroyed, the damage will be permanent and the function of the corresponding part of the brain will also be lost.
If the stopped blood flow is restored, the damage or at least its severity will be reduced, which is why time is a critical factor in stroke treatment.
Types of cerebral ischemic stroke
Ischemic brain stroke of embolic type
لخته های خونی که از محل های دیگر مانند قلب کنده و مهاجرت می کنند ممکن است در یکی از رگهای مغزی قرارگرفته و تا جایی که امکان آن هست جلو بروند ولی زمانی که قطر رگ اجازه عبور لخته را ندهد فرد دچار سکته مغزی ایسکمیک از نوع امبولی می شود.
Thrombotic cerebral ischemic stroke
People who have high cholesterol level or atherosclerosis may have this type of stroke, during which blood clots form in the vessels that have the task of supplying blood to the brain and cause blockage and stroke over time.
This type of stroke is classified as large or small vessel thrombosis based on the size or smallness of the vessel involved.
Stroke symptoms
If we or one of our relatives has a stroke, we need to pay special attention to the time of onset of symptoms, some treatments will be most effective if they are prescribed immediately after the stroke. Stroke signs and symptoms include:
Problems in speaking and understanding what is heard: We may be confused, we may say words unintelligibly or we may have problems understanding words.
Paralysis or numbness of the face, arms, and legs: Numbness, weakness, or paralysis may occur suddenly in the face, arms, or legs, usually affecting one part of the body.
Try to raise both of your hands at the same time and put them on your head, if one of the hands starts to fall, we probably have a stroke. Also, one side of our mouth may droop when we laugh.
Vision problems in one or both eyes: We may experience sudden blurring of vision in one or both eyes or we may experience double vision.
Headache: A headache that starts suddenly and is very severe can indicate a stroke. This headache is so intense that it may be accompanied by dizziness, nausea, and sometimes a change in the level of consciousness.
Difficulty walking: We may stumble or lose our balance. Also, we may suddenly lose our sense of place or where we are.
Complications of stroke
A stroke can sometimes cause temporary or permanent disabilities. This issue depends on how long the blood supply to the brain has been disrupted and which part of the brain has been involved. These complications can include the following:
Paralysis or loss of muscle movement:
Paralysis occurs on one side of the body or we lose control of some muscles, such as muscles on one side of the face or one arm.
Difficulty speaking or swallowing: A stroke may affect the control of the muscles in the mouth and throat, making it difficult for us to speak, swallow or eat.
Memory loss or thinking problems: Many people who have had a stroke have memory loss. They may even have problems in thinking, reasoning, judging and understanding concepts.
Emotional problems: People who have had a stroke may have more difficulty controlling their emotions or become depressed.
Pain: Pain, numbness, or other unusual sensations may occur in parts of the body affected by a stroke. For example, if a stroke causes loss of sensation in the left arm, we may experience an unpleasant tingling sensation in that arm.
Changes in behavior and ability to care for themselves: People who have had a stroke may become more withdrawn. They may even need help with cleaning and daily chores
Prevention of stroke
Knowing your stroke risk factors, following your doctor’s advice, and adopting a healthy lifestyle are the best things we can do to prevent stroke. If you’ve had a stroke or transient ischemic attack (TIA), these measures can help prevent another stroke. The follow-up care we receive in the hospital and after may also play a role.
Many strategies to prevent stroke are the same strategies to prevent heart diseases. Healthy lifestyle recommendations include: controlling high blood pressure, reducing the amount of cholesterol and saturated fat in our diet, quitting smoking, managing diabetes, maintaining a healthy weight, eating a diet rich in fruits and vegetables, regular exercise, treating apnea. Obstructive sleep apnea (OSA), avoid drinking alcohol, avoid using drugs such as cocaine and amphetamine