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A case of cerebrovascular accident answers
A case of cerebrovascular accident answers
A case of cerebrovascular accident answers
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1. Introduction
The main aim of this report is to present and analyse the disease called Cerebrovascular Accident popularly known as stroke. This disease affects the cerebrovascular system, which is a part of the cardiovascular system. To achieve this aim this report will firstly talk about the cerebrovascular system with its structure and functions. The main body of this report will look at causes, symptoms, diagnosis, treatments and prevention of stroke.
2. Cerebrovascular system
a) Overview of the cerebrovascular system
b) Normal function
3. 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 effects include paralysis of a limb or one side of the body and disturbances of speech and vision. The nature and extent of damage depends on the size and location of the affected blood vessels. The main causes are cerebral infarction (approx. 85%) and spontaneous intracranial haemorrhage (15%) (Waugh & Grant, 2010).
What Happens During a Stroke? (http://www.cdc.gov/stroke/about.htm)
If something happens to interrupt the flow of blood, brain cells start to die within minutes because they can’t get oxygen. This is called a stroke. Sudden bleeding in the brain also can cause a stroke if it damages brain cells. A stroke can cause lasting brain damage, long-term disability, or even death.
If brain cells die or are damaged because of a stroke, symptoms of that damage start to show in the parts of the body controlled by those brain cells.
b) Causes
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
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
A stroke is the acute neurologic injury that come as a result of an effect of ischemia or haemorrhage of the encephalon. Ischemia is caused by diminished supply of arterial blood which carries sugar and oxygen to brain tissue. Haemorrhagic stroke is due to intracerebral or subarachnoid bleeding and it damages the brain directly at the site of the bleeding by compressing the encircling tissue. Ischemic strokes can be embolic or thrombotic. Thrombotic stroke consequences from clot formation in the arterial blood vessel that provides blood to the encephalon, and can bear upon either large vessel or small vessel.
Cerebral vascular accidents are becoming a predominant health issue within society, effecting approximately 51,000 Australians each year (1,2), and has been identified as the second most common cause of death within communities. The Australian Government currently spends in excess of $5 billion annually on treatments for cerebral vascular accidents with costs continuing to increase dramatically (2,3). Strokes are a major cause of mortality and one of the most common causes of permanent disability, statistics show that there is over 440,000 people living with the debilitating effects following strokes in Australia alone (2,3).
A serious brain injury could lead to bleeding in or around your brain, causing symptoms that may develop right away or later.
A subarachnoid hemorrhage stroke is caused by bleeding in the space between the brain and the skull. When blood is released into this space, there is an increase in pressure on the brain. Clotted blood, as a result of the bleed, can force the brain against the skull and cause it to shift and herniate. This cascade of events causes normal cerebral spinal fluid to be blocked causing dilation of ventricles.
Cerebral Vascular Accident also known as a stroke occurs when part of the brain loses its blood supply and the part of the body that the blood-deprived brain cells control stops working. Blood loss supply can be ischemic because of lack of blood flow, or hemorrhagic because of bleeding into brain tissue. When an artery in the brain is being obstructed or blocked preventing oxygen rich blood from being delivered to brain cells, an ischemic stroke can occur (Wedro, 2013).
Many underlying factors can contribute for someone to have a stroke; these including not limited to:artherosclerosis,(harding of the arteries) commonly from fat consummation, heart disease (generally) hypertension(high blood pressure), kidney disease, peripheral vascular disease, and diabetes mellitus. Cerebrovaslar accident is an abnormal condition of the blood vessels of the brain, characterized by occlusion , an embolus ,or hemorrhage, resulting of a lack of blood supply in the brain tissues (ischemia) normally perfused by the damage vessels. CVA (orstroke) is the most common disease of the nervous system and Is ranked as the third leading cause of death in the United Stated., with About 200,000 deaths annually. According to Foundation of Nursing by Barbara Christensen/Elaine Kockrow( second Edition) Strokes affect persons in all age
The reason for this disability is most commonly due to lesions in the nerve centers that control the muscle contractions, or a blood clot that blocks circulation of oxygen to the brain stem. Brain-stem strokes, accidents, extreme spinal-cord injuries, and neurological diseases are other main causes for the syndrome (5). Axons that carry brain signals leave the larger motor areas on the surface of the brain and direct their signals towards the brain stem. It is here where they converge linking one another to form a tightly packed bundle called the motor tract. The brain stem motor tract is extremely sensitive; thus even the slightest impact of a stroke can lead to destruction of the axon bundles resulting in a total paralysis (1). For a locked-in patient, depending on the severity of the stroke, the sensory tracts may or may not be affected. These tracts also form axon bundles and determine the functioning of the feel, touch, and pressure perceptions.
Brain aneurysms practically go unnoticed and tend to have few to no symptoms until the rare occasion when the aneurysm ruptures. The bursting aneurysm causes bleeding in the brain and then often leads to a stroke. This is exactly what happened to my great-aunt Judy who survived a brain aneurysm and stroke.
Brain death occurs when there is a loss of all brain and brain stem function due to damaged brain cells. It is often termed as an irreversible coma as the damaged cells cannot regenerate themselves and a patient is stuck in a coma-like state. (Wilson and Christensen, 2014)
It is a known fact that approximately 8% of all strokes occurring worldwide, are caused by 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). The “brain” is the control center for your body. Your brain receives messages from your body. It also sends messages to other parts of your body” (DeGezelle).
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
There are many medical issues that can happen to a person at any given moment. Some can be predicted and diagnosed early while others cannot be. Issues with a person’s health can range from a simple headache to something more in depth and disastrous and potentially life threatening. Stroke is one of many major medical issues that can be potentially life threatening. Stroke has many kinds of faces, its problems can be multiple and trying to get back to a normal routine can be extremely difficult but not impossible especially in the oral cavity.
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...