Stroke
Stroke is a commonly known disease that is often fatal. This cellular disease occurs when blood flow to the brain is interrupted by either a blood clot halting the progress of blood cells in an artery, called an Ischemic stroke, or a blood vessel in the brain bursting or leaking causing internal bleeding in the brain, called a hemorrhagic stroke. When this happens, brain cells are deprived of oxygen and nutrients because the blood cells carrying these essential things are stopped, causing them to die. When the cells in the brain die, sensation or movement in a limb might be cut off and may limit an organism’s abilities. A person with stroke is affected depending on where in the brain the stroke occurs. In other words, symptoms of a stroke
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I realized it was a stroke,” –Fred, a stroke survivor. Some of the most common symptoms indicating that a stroke is occurring include sudden numbness or loss of movement in the limbs on one side of your body or face, sudden vision changes, sudden trouble speaking, sudden confusion, a very intense headache, or sudden balance issues. Stroke is simply acquired when the blood supply to the brain is suspended, but to get to the roots of what causes it, a stroke is triggered by the slowly forming plaque buildup over time. The plaque is made up of calcium, fat, cholesterol, cellular waste, and fibrin, a material involved in blood clotting. The plaque existing in an artery can grow big enough to block the supply of blood to the brain, resulting in a stroke. A stroke can also be caused by high blood pressure breaking a blood vessel in the brain causing internal bleeding. Although there is no cure, as damage the brain is usually irreversible if not cared for quickly; there are different treatments available for both types of stroke. For an ischemic stroke, a tissue called plasminogen activator can be injected into an artery to break up …show more content…
The animals that stroke primarily affects are humans. This is likely caused by risk factors that humans attain, such as cigarette smoking, high blood pressure, diabetes, high blood cholesterol, a poor diet, stroke occurring in ancestors, and physical activity/obesity. Stroke has is also starting to become recognized in cats, dogs, and rabbits. According to the World Health Organization, 15 million people suffer from a stroke worldwide every year. Of the people diagnosed, 5 million die and 5 million are permanently disabled. In the United States, 795,000 suffer from stroke annually. 85 percent of the diagnosed strokes are ischemic and 15 percent of them are hemorrhagic As for the humans diagnosed, three fourths of the people that suffer from a stroke are elderly (over the age of 65). This is caused by raising cholesterol levels and the narrowing of arteries as someone ages. Ethnicity, as well as age can also affect a person’s risk to fall victim to a stroke. Africans have a much higher risk of death from a stroke than Caucasians do. This is partly because blacks have greater risks of high blood pressure, diabetes, and obesity. Research suggests Africans may carry a gene that makes them more salt sensitive, inevitably increasing the risk of high blood pressure. Fortunately, research is still being done to prevent stroke. Rats and mice are primary animal subjects for studying this deadly
Cerebrovascular Accident a) Overview - definition and the effects of the stroke on the body A stroke is a serious, life-threatening medical condition that occurs when the blood supply to part of the brain is cut off. (http://www.nhs.uk/conditions/Stroke/Pages/Introduction.aspx) This condition is a common cause of death and disability, especially in older people. Some predisposing factors include: • hypertension • atheroma • cigarette smoking • diabetes mellitus It occurs when blood flow to the brain suddenly interrupted, causing hypoxia. The effects include paralysis of a limb or one side of the body and disturbances of speech and vision.
A stroke can happen at any age but for patients who are 55 and older, their risk factor will increase due to age and physical activity. “While stroke is common among the elderly, a lot of people under 65 also have strokes”(“About Stroke” page 1). Also at risk are African Americans because of other health issues that can trigger a stroke, for example: high blood pressure, diabetes and obesity. Caucasians and Hispanics are also at. Not only does Ethnicity and age play a factor, but so does other health conditions. Patients who suffer from high blood pressure, diabetes, heart disease, obesity, alcohol and drug
Stroke occurs when the blood supply to the brain is blocked or condensed. Blood works to transport oxygen and other beneficial substances to the body’s cells and organs, as well as the brain. There are two main types of strokes that are known as Ischemic strokes and Hemorrhagic strokes. When the blood vessels that provides for the brain becomes congested, is it referred to as ischemic stroke, the most common stroke within adults. Blood clots, a cluster of blood that sticks together, are the cause of Ischemic strokes. Ischemic strokes also takes place when arteries become backed up with plague, leaving less blood to flow. Plague is cholesterol, calcium and fibrous and connective tissue that sticks to the walls of blood vessels. Ischemic strokes eternally damage the brain and cause a person's body to no longer function habitually.Some risk factors that may increase stroke are high cholesterol, diabetes, high blood pressure, and obesity. Some stroke factors are also due to old age or having a family that has a history of strokes. Men are more likely to have a stroke but the most st...
Men are typically more at risk of having a stroke than women (The Heart and Stroke Foundation of South Africa, 2007)
It goes without saying that everyone’s health is important and should be taken care carefully. Everyone has heard of strokes before but many people do not really know its meaning, types, and the number of individuals of that dies due to this issue. According to Centers for Disease Control and Prevention (2015), strokes kills an average of 130,000 people a year and it is one of the most common deaths that happen in the United States. An average of 800,000 of people die from cardiovascular disease and strokes and it is also a reason of long-term disability (Centers of Disease Control and Prevention, 2015). Strokes, which can also be called cerebrovascular accident or CVA happen when the blood supply to the brain is interrupted or the blood vessel going towards the brain burst. Then part of the brain dies or become seriously injured because the brain cells do not receive oxygen and they eventually die. People’s lifestyle may also impact seriously on their health and increase the possibility of having a stroke. Some of the risk that can severely increase the cause of stroke would be high blood pressure, heart disease, diabetes, cigarette smoking, as well as strokes that
The effects of multiple disabilities are often both multiplicative and interactive. Cerebral Palsy is a disability that originates from damage to the central nervous system, but which is often accompanied by sensory, communication, orthopedic, learning and cognitive abilities. The complex nature of cerebral palsy is related to differences in causation and the nature and degree of motor involvement. In this paper, Cerebral Palsy will be defined and described, followed by discussion of conditions that frequently occur with this disability. A description of the impact of cerebral palsy on physical and communication development will also be discussed.
Someone somewhere in the United States is having a stroke every 40 seconds and every 4 minutes someone dies of a stroke from not being treated fast enough. When having a stroke what are some signs? The most common signs of someone having a stroke are: face drooping, arm weakness or numbness, and strange or slurred speech. The faster you are treated for having a stroke the more likely you are to survive and not have permanent damage (disability). Stroke is the number one cause of having serious long term disability in the United States, every year about 795,000 people have strokes.
Cerebrovascular disease or the term stroke is used to describe the effects of an interruption of the blood supply to a localised area of the brain. It is characterized by rapid focal or global impairment of cerebral function lasting more than 24 hours or leading to death (Hatano, 1976). As such it is a clinically defined syndrome and should not be regarded as a single disease. Stroke affects 174-216 people per 10,000 population in the UK per year and accounts for 11% of all deaths in England and Wales (Mant et al, 2004). The risk of recurrent stroke within 5 years is between 30-43%. One problem is that the incidence of stroke rises steeply with age and the number of elderly people in the UK is on the increase. To date people who experience a stroke occupy around 20 per cent of all acute hospital beds and 25 per cent of long term beds (Stroke Association, 2004). The British Government now identifies stroke as a major economic burden on the National Health Service (DoH, 2002).
So, what is actually happening when a stroke occurs? A stroke occurs blood flow to the brain is either impeded or significantly reduced. When this happens, the brain cells are starved of the essential oxygen and nutrients they need and begin to die. There are three different kinds of strokes. They are ischemic, hemorrhagic,
A stroke is a type of cardiovascular disease that affects the cerebral arteries, those blood vessels that carry blood to the brain. A stroke occurs when one of those blood vessels in the brain is obstructed or ruptures flooding the brain with blood. Depriving blood and oxygen to the brain results in those immediate cells death, causing the brain not to function properly. Once parts of the brain stop functioning, it can directly affect the areas of the body controlled (1).
In a 2008 study in the journal Alternatives to Laboratory Animals shows that over 80 HIV/AIDS vaccines that worked in nonhuman primates were unsuccessful in human trials. In a 2004 study in the journal Stroke, over 4,000 studies report the intended result of more than 700 treatments of stroke in animal models. Although, none of the approximately 150 of these treatments tested in humans showed clinical benefit. This was recorded in a 2005 paper in the International Journal of Neuroprotection and
Stroke is a serious medical condition that affects people of all ages specifically older adults. People suffer from a stroke when there is decreased blood flow to the brain. Blood supply decreases due to a blockage or a rupture of a blood vessel which then leads to brain tissues dying. The two types of stroke are ischemic stroke and hemorrhagic stroke. An ischemic stroke is caused by a blood clot blocking the artery that brings oxygenated blood to the brain. On the other hand, a hemorrhagic stroke is when an artery in the brain leaks or ruptures (“About Stroke,” 2013). According to the Centers for Disease Control and Prevention (CDC), “Stroke is the fourth leading cause of death in the United States and is a major cause of adult disability” (“About Stroke,” 2013). Stroke causes a number of disabilities and also leads to decreased mobility in over half of the victims that are 65 and older. The CDC lists several risk factors of stroke such as heredity, age, gender and ethnicity as well as medical conditions such as high blood pressure, high cholesterol, diabetes and excessive weight gain that in...
Strokes cause approximately 185,000 deaths every year making it the fifth leading cause of death and the number one cause of adult disability. Strokes are very serious because they can cause severe damage to the brain in just a matter of minutes. Therefore, It is essential that people understand the causes of a stroke, the methods of preventing a stroke, and the recognizable signs and symptoms of a stroke.
One of the leading forms of disabilities, worldwide, are those that caused from strokes. Strokes (also known as cerebrovascular accidents) occur when blood vessels in the brain rupture or when blood clots in the vessels block oxygen from flowing to and from the brain (Stroke, 2018). The area in which the brain is losing oxygen determines which functions the affected person will not be able to control. The effects of a stroke can have long-lasting effects and can shift the course of a person’s life. Neuroscientists study the differences between the left and right hemispheres to see in which ways will a person be disabled.