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.
A stroke occurs when an area of the brain has its blood flow cut off causing brain cells to die due to a lack of oxygen. Oxygen is vital for proper brain function. Although the brain only comprises about 2% of the body’s total weight it uses 20% of the oxygen you breath. That being said, any deprivation of oxygen could be potentially fatal
…show more content…
Ischemic strokes are more common accounting for 87% of all strokes. An ischemic stroke occurs when blood clots or plaque buildup cause a blockage of a blood vessel. This blockage prevents oxygenated blood from reaching the brain. Ischemic strokes are usually caused by hypertension, high cholesterol, and/or atherosclerosis.
Ischemic strokes can be further classified into two categories determined by the manner in which they occur. One way an ischemic stroke can occur is when a blood clot or plaque particle forms somewhere in the body and travels through the bloodstream to the brain. Once in the brain it becomes stuck, preventing the blood from flowing any further. This is called an Embolic stroke. The other way an Ischemic stroke can occur, is if the blood clot or plaque buildup that causes the stroke is formed inside one of the arteries that is responsible for carrying blood to the brain. This is called a thrombotic stroke.
Hemorrhagic strokes are more rare comprising only about 15 percent of all strokes. Although less common, hemorrhagic strokes are still responsible for 40% of all stroke fatalities. A hemorrhagic stroke occurs when a weakened blood vessel begins to leak or a brain aneurysm bursts. This causes blood to infuse the tissue in or around the brain ultimately causing swelling, pressure, and tissue damage resulting in cellular
Ischemic Stroke is caused due to a blood clot in an area of the brain, leading to loss of neural function if last for more than 24 hours. In the United States, ischemic stroke affects 2.7% of men and 2.5% of women of age range 18 years and older. In addition, it has reported that annually about 610,000 and 185,000 of new strokes and recurrent strokes cases occur in US1. Moreover, it has reported that patients who have suffered from a stroke have more chances of recurrent stroke, Myocardial infarction, and death from vascular causes2. One of the risk factor of ischemic stroke is formation of plaque in the blood vessels causing blood clot3. Several randomized trials have also reported that antiplatelet medications are efficient in preventing recurrences of stroke in patients who had an incident of ischemic stroke. Antiplatelet medications for preventing recurrences of stroke are aspirin, combination of aspirin and extended-release dipyridamole, and clopidogrel alone4. It ha...
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...
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
Due to the lose in brain cells sometime facial nerve can become damage. Which is also a sign of a stroke. In stroke patient usually when ask to smile, only half of their facial muscle would be able to do so. While the other half remain drooped. The Circulatory system is affect as well. Remember in a Hemorrhagic stroke a ruptured blood vessel begins to bleed out into the brain. Once blood is secreted out side the blood vessel into the tissues, red blood cells will take away nutrient from the brain cells. In Ischemic, the blockage in the blood vessel does not allow the blood to circulated proper. As a result of lost blood supply brain cells will die in the area where it is not receiving nourishment. Traveling in our bloodstream is oxygen and glucose, which is constantly need for cells to preform they daily functions.
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.
Strokes are not only the leading cause of mentally disabling adults, but they are also the third most common reason for deaths worldwide (Jarvis, 2012). In general, a stroke, also called a “cerebrovascular accident,” occurs when blood flow of the vascular system is blocked from reaching parts of the brain (Jarvis, 2012). There are two types of stroke, an ischemic stroke or a hemorrhagic stroke, and they differ in the way they affect the vascular system. An ischemic stroke is the most common type of stroke, accounting for 80 percent of all strokes, and it is due to a thrombus or embolus blocking blood vessels supplying the brain (Durukan & Tatlisumak, 2007). A hemorrhagic stroke is less common, but is caused by the rupturing of a blood vessel in the brain and causes bleeding (Jarvis, 2012).
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,
The World Health Organisation (2013) explains that an Ischaemic stroke occurs as a result of a blood vessel becoming blocked by a clot, reducing the supply of oxygen to the brain and, therefore, damaging tissue. The rationale for selecting Mary for this discussion is; the author wishes to expand her evidenced based knowledge of stroke since it is the principal cause of disability and the third leading cause of mortality within the Scottish population (Scottish Intercollegiate Guidelines Network (SIGN), 2008) and, therefore, a national priority. In response to this priority, the Scottish Government (2009) produced their ‘Better Heart Disease and Stroke Care Action Plan’. Additionally, they have introduced a HEAT target to ensure 90% of stroke patients get transferred to a specialised stroke unit on the day of admission to hospital (Scottish Government, 2012).
“Time is brain” is the repeated catch phrase when addressing the treatment and management of stroke (Saver, 2006). Access to prompt and appropriate medical care during the first few hours of stroke onset is critical to patient survival and outcomes. Recent changes in the guidelines for acute stroke care released by the American Heart Association (AHA) and the American Stroke Association (ASA) have improved patient access to treatment. Stroke treatment now follows the model of myocardial infarction treatment. Hospitals are categorized into four levels based on stroke treatment capability. The most specialized treatment is available in comprehensive stroke centers followed by primary stroke centers, acute stroke-ready hospitals, and community hospitals. The use of telemedicine now enables even community hospitals, with limited specialized capabilities, to care for stroke patients. Telemedicine puts emergency hospital personnel in contact with neurologists providing expertise in the evaluation of a stroke patient and determination of their eligibility for treatment with thrombolytic medication (Jefferey, 2013).
What is a brain aneurysm? One could define a brain aneurysm as bulging, weak area in the wall of an artery that supplies blood to the brain. Over time, weak areas in the walls bulge out causing the blood vessel walls to become weaker as the aneurysm grows (Simon). In most human beings, a brain aneurysm can go undetected for years even possibly ones entire life. Some people however are not so lucky, in some instances, the aneurysm can rupture or explode, causing a hemorrhagic stroke, which is known as the type of stroke that causes bleeding in the brain. It is a known fact that approximately 8% of all strokes occuring world wide, are caused from the rupturing of brain aneurysms. Those are the unlucky people, fortunately, about 94% of all brain aneurysms do not rupture at all, and people are able to live their lives normally, just of course being careful not to do anything to severely damage their head (Nisacara).
It is caused by clot that blocks blood vessels from supplying blood to the brain through cerebrovascular events. If there is no blood in the brain, then there is no oxygen or nutrients because it is blood that supplies it to the brain. This can cause permanent brain damage which can cause inflammation. Fasting has there been known to be effective and efficient against stroke because it increases cognitive functioning and health of the brain. In addition, fasting has been known to increase neuro-protective proteins and reduction in inflammatory substance known as cytokines. This is critical reducing the chances of damaging the brain that can cause
On average, one American dies from stroke every 4 minutes. Every year, more than 795,000 people in the United States have a stroke. Stroke is one of the top leading causes of death and long-term disability in the United States. Stroke kills almost 130,000 Americans each year—that’s 1 out of every 20 deaths. On average, one American dies from stroke every 4 minutes. Every year, more than 795,000 people in the United States have a stroke. With proper care and awareness strokes can be prevented because you can identify signs of stroke, take medications, and live a healthy lifestyle.
The nature and extent of damage depends on the size and location of the affected blood vessels. b) Like all organs, the brain needs the oxygen and nutrients provided by blood to function properly. If the supply of blood is restricted or stopped, brain cells begin to die. This can lead to brain injury, disability, and possibly death. There are two main causes of strokes: ischaemic – where the blood supply is stopped due to a blood clot (this accounts for 85% of all cases) haemorrhagic – where a weakened blood vessel supplying the brain bursts.
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
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...