Ischemic Stroke Research Paper

All strokes are caused by an obstruction of blood getting to the brain. The ischemic stroke is caused by a blot clot similar to what happens during a heart attack where blood can’t get through because of plaque buildup that blocks the artery. Hemorrhagic stroke are instead of a blockage a blood vessel bursts and can be caused by a head injury that cause a brain bleed. Transient ischemic strokes are “mini” strokes that happen when there is a blockage but the blood flow is restored after short period of

Strokes are classified according to etiology and are either ischemic or hemorrhagic. Ischemic strokes are caused by a sudden interruption of blood flow to the brain and account for 87% of all strokes.

Ischemic Stroke is death of an area of brain tissue that is a result of an inadequate blood and oxygen supply to the brain due to blockage of an artery. High blood pressure is the leading cause of this type of stroke and responsible for about 87% of strokes that occur. This type of stroke can happen within 2

Transient ischemic attack (TIA) is a transient cerebral blood flow disruption, which affects a focal portion of the brain. TIA’s are brief temporary episodes of neurologic loss of vision, motor, and or sensory function that can last from a few minutes up to 24 hours. It cause by temporary obstructions of blood flow to the brain, and can be a warning sign of an impending cerebrovascular accident (CVA). Patients who experience a TIA will go on to have a completed stroke but having TIA increases the risk of stroke. Symptoms of TIA’s mirror those of a stroke but are temporary in nature and do not cause any irreversible damage. Signs and symptoms include a sudden weakness or parethesia on one side of the body, abrupt dimness or loss of vision especially

Stroke is a life-threatening medical condition that occurs when the blood supply to part of brain cuts off. It is also referred to as a Cerebral Vascular Accident (CVA). There are two types of stroke ischaemic where the blood supplies stopped due to a blood clot in a blood vessel and haemorrhagic where a weakened blood vessel supplying the brain bursts. Transient Ischaemic Attack (TIA) is the condition where the blood supply of the brain is temporarily interrupted causing a “mini-stroke” often last between 30 minutes and several hours. TIAs are often a warning sign of having a full stroke in the near future (Stroke Association 2014). According to Nation Stroke Organisation UK (2015) statics stroke occurs about 152,000 times a year in the UK

A stroke is also known as a cerebral vascular accident. This is a silent disease. “A cerebral vascular accident or stroke, occurs when there is a sudden death of some brain cells due to the lack of oxygen; when the blood flow to the brain is impaired by blockage or rupture of an artery to the brain.” There are two different types of strokes. First you can have a blockage of blood flow which can cause a person to have a stroke. Or, you could have a bleeding vessel in your brain or around the area of your brain.

Each year, around 800,000 people have a new or recurrent stroke. The characteristics include face drooping or feeling numb, difficulties speaking, and muscle weakness on one side of the body. Stroke is caused from reduced or interrupted blood supply to the brain. There are ischemic strokes (thrombic and embolic strokes), hemorrhagic strokes (intracerebral hemorrage and subarachnoid hemorrhage), and transient ischemic attack (TIA).

A stroke is caused by the lack of blood and oxygen in the brain. Ischemia is the lack of oxygen in the body’s tissues. An ischemic stroke occurs when a blood vessel, most likely an artery, is blocked from a clot. This prevents oxygen from entering the brain. In other words, the main artery becomes blocked, and in turn, the part of the brain that the artery supports becomes ischemic – the cells and tissues in that part of the brain will die from lack of oxygen.

A transient ischemic attack or TIA is like a stroke for it produce similar symptoms, but this only last a few hours and don’t cause permanent damage over the patient. This event was often called a mini stroke, and transient ischemic attack could be a warning to all of us. According to a study of statistic, in every 3 people who are experiencing a transient ischemic attack 1 patient would eventually experience a stroke, with about half occurring within a year after the patient had experienced a transient ischemic attack.

A transient ischemic attack or TIA is like a stroke for it produce similar symptoms, but this only last a few hours and don’t cause permanent damage over the patient. This event was often called a mini stroke, and transient ischemic attack could be a warning to all of us. According to a study of statistic, in every 3 people who are experiencing a transient ischemic attack 1 patient would eventually experience a stroke, with about half occurring within a year after the patient had experienced a transient ischemic attack.

Ischemic Strokes (caused by blood clots) - The most common cause of a stroke is a blood clot (thrombus) which is formed within a blood vessel of the brain. Embolism can also occur when a blood clot lodges itself in an artery causing a blockage, disabling oxygen rich blood from travelling to the brain. A heart attack (myocardial infarction), where the heart valve is damaged and an irregular heartbeat (atrial fibrillation) occurs, can cause blood clots which may eventually reach the brain.

A stroke happens when blood stops flowing to the brains. This can be due to a clot in an artery or an artery in the brain bursts open. A mini stroke or a transient ischemic attack is an example of a stroke due to a clot, but the clot only briefly blocks the artery, which can cause stroke-like symptoms, however, they only last about 24 hours (40). These mini strokes can be a warning sign for a full stroke to come. A full stroke due to a clot is called an ischemic stroke. This is due to plaque buildup in arteries (41). Lastly, a hemorrhagic stroke happens when a blood vessel in the brain burst open. This is most commonly cause by high blood pressure, which can weaken the strength of the arteries (41). Symptoms of strokes depend on severity of the clot of hemorrhage, which side of the brain is affected, and for how long blood flow was interrupted. The major signs of strokes, are slurred speech, one side of the face drooping, one arm not being able to move. All types of strokes including mini strokes are considered medical emergencies and require immediate first aid and often operations. Diagnosis are often made very quickly once a person goes to the hospital. The first actions to help the person is to stabilize the patient, which would include monitoring breathing, blood pressure, and bleeding. Then, the patient would go up for a CT scan to see where the hemorrhage or clot is in the brain (41). If the patient has a

(Mayo Clinic Staff, 2016) Within the category of an ischemic stroke, the 2 sub-strokes are: thrombotic and embolic strokes. “A thrombotic stroke occurs when a blood clot forms in one of the arteries that supply blood to (the) brain…may be caused by fatty deposits that build up in arteries and cause reduced blood flow (Mayo Clinic Staff, 2016)”. On the other hand, “An embolic stroke occurs when a blood clot or other debris forms away from your brain…and is swept through (the) bloodstream to lodge in narrower brain arteries (Mayo Clinic Staff, 2016)”. The second category of stroke is the hemorrhagic stroke, which occurs, “…when a blood vessel in (the) brain ruptures (Mayo Clinic Staff, 2016)”. Within this category of stroke, again possess 2 sub-categories: intracerebral and subarachnoid hemorrhages. An intracranial hemorrhage is when a blood vessel in the brain ruptures and leaks it’s contents into the surrounding brain tissue (Mayo Clinic Staff, 2016); conditions such as, “high blood pressure,

Stroke is a disease that usually occurs when poor blood flow to the brain causes cells to die. There are two types of strokes. There is a ischemic stroke which a short term stroke caused by lack of blood flow. 87% of strokes that happen in the United States are ischemic strokes. The second stroke is a hemorrhagic stroke, which can be a long term stroke. A hemorrhagic stroke is caused by internal bleeding in the brain.

Stroke can be categorized into ischemic and hemorrhagic subtypes as each has a different mechanism and long term outcome. Ischemic stroke makes up 87% of all strokes and is caused by an occluded cerebral blood vessel causing hypoperfusion to areas upstream of the occlusion that result in tissue damage and dysfunction. Of all