Ischemic stroke occurs when a blood vessel carrying blood to the brain is blocked by a blood clot. This causes blood not to reach the brain. High blood pressure is the most important risk factor for this type of stroke. Ischemic strokes account for about 87% of all strokes. An ischemic stroke can occur in two ways : Embolic Stroke & Thrombotic stroke
Embolic stroke, a blood clot or plaque fragment forms somewhere in the body (usually the heart) and travels to the brain. Once in the brain, the clot travels to a blood vessel small enough to block its passage. The clot lodges there, blocking the blood vessel and causing a stroke.
Thrombotic stroke is caused by a blood clot that forms inside one of the arteries supplying blood to the brain. This type of stroke is usually seen in people with high cholesterol levels and atherosclerosis. The medical word for a clot that forms on a blood-vessel deposit is thrombus.
Hemorrhagic strokes are less common, in fact only 15 percent of all strokes are hemorrhagic, but they are responsible for about 40 percent of all stroke deaths.
A hemorrhagic stroke is either a brain aneurysm burst or a weakened blood vessel leak. Blood spills into or around the brain and creates swelling and pressure, damaging cells and tissue in the brain. There are two types of hemorrhagic stroke called intracerebal and subarachnoid.
The most common hemorrhagic stroke happens when a blood vessel inside the brain bursts and leaks blood into surrounding brain tissue (intracerebal hemorrhage). The bleeding causes brain cells to die and the affected part of the brain stops working correctly.
Subarachnoid stroke involves bleeding in the area between the brain and the tissue covering the brain, known as the subarachnoid space. This type of stroke is most often caused by a burst aneurysm.
Stroke is a "Brain attack". It occurs when the blood supply to part of your brain is interrupted or severely reduced, depriving brain tissue of oxygen and nutrients. Within minutes, brain cells begin to die. When brain cells die during a stroke, abilities controlled by that area of the brain such as memory or muscle are lost.
A stroke can happen to anyone at any time. Therefore it is a medical emergency. Prompt treatment is crucial. Early action can minimize brain damage and potential complications. The good news is that strokes can be treated and prevented, and many fewer people die of stroke now than even 15 years ago.
Each year nearly 800,000 people worldwide experience a new or recurrent stroke.
Doctors who specialize in treating the brain are called neurologists. A neurologist is a medical doctor who specializes in treating diseases of the nervous system. The nervous system is made of two parts: the central and peripheral nervous system. It includes the brain and spinal cord. Illnesses, disorders, and injuries that involve the nervous system often require a neurologist’s management and treatment.
Neurologists manage and treat neurological conditions, or problems with the nervous system. Symptoms that commonly require a neurologist include: coordination problems muscle weakness, a change in sensation, confusion, dizziness, People who are having problems with their senses, such as touch, vision, or smell, may also need to see a neurologist. Problems with senses are sometimes caused by nervous system disorders.
Neurologists also see patients with: seizure disorders, such as epilepsy, stroke, multiple sclerosis, neuromuscular disorders, such as myasthenia gravis, infections of the...
Restless Leg Syndrome (RLS) can develop at any age, even during childhood. The disorder is more common with increasing age and more common in women than in men.Restless legs syndrome usually isn't related to a serious underlying medical problem. However, RLS/WED sometimes accompanies other conditions, such as:
Peripheral neuropathy. This damage to the nerves in your hands and feet is sometimes due to chronic diseases such as diabetes and alcoholism.
Iron deficiency. Even without anemia, iron deficiency can cause or worsen RLS/WED. If you have a history of bleeding from your stomach or bowels, experience heavy menstrual periods or repeatedly donate blood, you may have iron deficiency.
Kidney failure. If you have kidney failure, you may also have iron deficiency, often with anemia. When kidneys don't function properly, iron stores in your blood can decrease. This, with other changes in body chemistry, may cause or worsen RLS/WED.
Restless leg syndrome (RLS) is a condition in which you have an uncontrollable urge to move your legs, usually due to leg discomfort. It typically happens in the evenings or nights while you're sitting or lying down. Moving eases the unpleasant feeling temporarily.
Restless legs syndrome, now known as restless legs syndrome/Willis-Ekbom disease (RLS/WED), can begin at any age and generally worsens as you age. It can disrupt sleep — leading to daytime drowsiness — and make traveling difficult.
Common characteristics of RLS signs and symptoms include:
Sensation starts after being at rest. The sensation typically begins after you've been lying down or sitting for an extended time, such as in a car, airplane or movie theater.
Relief by movement. The sensation of RLS/WED lessens with movement, such as stretching, jiggling your legs, pacing or walking.
Worsening of symptoms in the evening. Symptoms occur mainly at night.
Nighttime leg twitching. RLS/WED may be associated with...