According to the World Health Organization (WHO), the term referred to as a “stroke” is defined as a cerebrovascular accident. This occurs when the blood vessel has a disturbance in its normal flow of blood, usually caused by a clot or rupture in the blood vessel. Following this sudden blockage in the arteries, the brain first starts to lose the exchange of oxygen, nutrients, and vital components which keep it performing optimally, thus leading to death of brain cells (World Health Organization, 2014). Strokes differ in cause and severity. An ischemic stroke is caused by an artery that is totally blocked meaning the brains blood supply is completely cut off. A hemorrhagic stroke is caused by a leaking or ruptured vessel to the brain meaning …show more content…
The majority, 85%, of strokes cause ischemia or lack of oxygen to a body part. In this type of stroke, the arteries to the brain become blocked and decrease the brain’s consumption of oxygen and nutrients. Ischemic attacks can then be broken down further into thrombotic attacks and embolic strokes. Thrombotic strokes occur when residue, such as plaque, builds up in an artery that supplies the brain causing a clot while an embolic stroke occurs when the blood clot is formed elsewhere else in the body, most often in the heart, and moves towards the smaller arteries of the brain. The other form of a cerebrovascular accident is called a hemorrhagic stroke; this happens when there is a weak blood vessel in the brain that ruptures or leaks. These types of strokes are much less common in our population today and can be classified further as to where the ruptures take place, for instance an intercerebral or subarachnoid hemorrhage. An intercerebral hemorrhage happens when a blood vessel busts and seeps into the neighboring brain tissue. When a blood vessel of the brain ruptures in the space between the skull and the brain it is called subarachnoid hemorrhage. This type of hemorrhage is associated with vasospasms and causes severe headaches and damage to brain tissues due to limited blood flow (Stroke, …show more content…
If a patient displayed dizziness, difficulty understanding or responding to voice commands, blurry vision, sudden headaches, or droopiness on one side of their face, one is to presume that the patient could be in the beginning stages of having a cerebrovascular accident (Cerebrovascular Accident, 2013). The length and severity of the signs vary from patient to patient but symptoms may appear quickly and unexpected, which is why a health care professional must be trained to act quickly and effectively when an individual exhibits these symptoms. A quick method of assessing whether a patient to suffering from a stroke is to use the FAST method. F: “face drooping”; ask the patient to smile and see if it is uneven or if one side is drooping. A: “arm weakness”; is one arm weaker than the other? S: “speech difficulty”; ask the patient to speak at the best of their abilities and determine whether speech is slurred. T: “time to call 9-1-1”; at this point in the assessment, a higher-level health care provider should be involved (Impact of Stroke,
There are three types of strokes that cause changes to the brain: Hemorrhagic stroke,Intracerebral hemorrhage and Transient ischemic attack (TIA). Ischemic stroke is the most common form of stroke, accounting for around 87% of strokes.
Stroke previously known as Cerebrovascular accident is well-defined as ‘an abrupt cessation of cerebral circulation in one or more of the blood vessels distributing the brain. Due to the interruption or diminish of oxygen supply causes serious damage or necrosis in the brain tissues (Jauch, Kissella & Stettler, 2005). There is a presence of one or more symptoms such as weakness or numbness or paralysis of the face, arm or leg, difficulty speaking or swallowing, dizziness, loss of balance, loss of vision, sudden blurring or decreased vision in one or both eyes and headache. Stoke is categorised into two types, Ischaemic and haemorrhagic
A stroke occurs when the blood supply to the brain is blocked. The tissue does not get enough of oxygen and nutrients within minutes, the brain cells begin to die. A stroke is a medical emergency, and prompt treatment is crucial. The good news is a stroke can be treatable and is more preventable. More people live longer now than in the past years. Stroke is known as the silent killer. Many people ignore the symptoms and cause more damage to their body. People with stroke have trouble speaking and understanding, paralysis or numbness of the face arm or leg. If you ever encounter anyone with these systems, please call 911 imminently for help.
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
Neuroradiological imaging plays an important role in the process of diagnosing ischaemic stroke. The different imaging modalities that can be used to diagnose ischaemic stroke include computed tomography (CT), magnetic imaging resonance (MRI), and radionuclide imaging. In this article, the different modalities that contribute to the diagnostic process are discussed, with a focus on CT scan protocols.
Strokes are commonly associated with old age, symptoms and awareness are often unnoticed in young adults due to ambiguity about strokes.
Ischemic strokes are the most common form of stroke, with around 85% of strokes being of this type. They are caused by the arteries that connect to the brain becoming blocked or narrowed, resulting in ischemia - severely reduced blood flow.
A cerebrovascular accident more commonly known as a stroke or brain attack is the term used to describe the sudden death of brain cells in a localized area due to inadequate blood flow. In order to woke the brain needs a constant supply of oxygen and nutrients. This supply is carried to the brain
There are 2 types of hemorrhagic strokes: an intracerebral hemorrhage happens when a blood vessel in the brain bursts and spills into the surrounding brain tissue, damaging brain cells. A subarachnoid hemorrhage happens when an artery
Stroke is often related to other genetic diseases or disorders. Stroke occurs by blood flow being interrupted to the brain by either a clot or a bleed on the brain. The brain cells die quickly if blood flow is blocked (Centers of Disease Control and Prevention, 2016a). Ischemic stroke occurs when blood flow is blocked by clots or particles (CDC, 2016a). Hemorrhagic stroke occurs when the brain has a bleed from blood vessels bursting (CDC, 2016a). Stroke can leave individuals with deficits and dependent on others for care. Stroke can cause death.
F.A.S.T stands for Face drooping, Arm weakness, Speech difficulty, and Time to call 911. If people have these signs 911 should be called as soon as possible. Fast medical treatment will decrease long-term effect and prevent death. The medical providers have to figure out what kind of stroke the patient is having. If the stoke is ischemic, the patient will have a tissue plasminogen activator. Tissue plasminogen activator is an IV in the arm. This may also be administered right into the effected blood vessel to help break apart the clot. If this method of treatment is given with in the first three hours of the stroke, the chances of recovery is vastly improved. Another method of treatment is, the doctor can insert a catheter in the patients’ blood vessel to remove the clot. This method is called an Endovascular procedure. If the Medical providers perform a carotid endarterectomy (opening of the carotid artery and removing any plaque) the risk of a future stroke will be decreased. A medical provided can also put a stent into the artery to open the artery so no plaque can build up. It is recommended that the patient after having a stroke should have speech, occupational, and physical therapy. Also the patient should join a support group. The patient should also change their daily life style in order to prevent another
In many cases, strokes can be diagnosed, prevented and treatable. Symptoms of a stroke can occur quickly and may cause: sudden numbness, tingling, or weakness, or paralysis in your face, arm, or leg, especially on one side of your body. Sudden: vision changes, trouble speaking (slurred speech), confusion or trouble understanding simple statements, problems with walking or balance, severe headache. It's recommended to call a doctor or 911 even if these symptoms last for a short amount of time because a transient ischemic attack, or mini stroke may have occurred. The transient ischemic attack may be a precursor to a stroke occurring soon. Catching these symptoms can dramatically increase chances of prevention additional damage to the body (2).
A stroke caused by a blocked artery by a blood clot or bursting of a blood vessel because of uncontrolled high blood pressure. There are main three types of the stroke. An ischemic stroke occurs when a blood clot blocks one of the arteries which supply blood to brain. A clot may be caused by fatty deposits (plaque) that build up in arteries and cause reduced blood flow (atherosclerosis) or other artery conditions. (mayo clinic). About 89%, strokes are ischemic strokes. Ischemic stroke includes thrombotic stroke. A thrombotic stroke occurs when a thrombus stuck in one of the arteries that supply blood to the brain. A clot build-up of fatty deposits in arteries. Another type of stroke is called the hemorrhagic stroke. This stroke occurs when a blood vessel leaks or ruptures in the brain. A bold vessel leaks or ruptures from many conditions like uncontrolled high blood pressure or overtreatment with anticoagulants and the weak spot in blood vessel walls. (mayo). Some people experience a mini-stroke it is known as a transient ischemic attack (TIA). A temporary decrease or clot stuck in a vessel in our brain causes TIA. It happens less than five minutes. This stroke does not have any symptom, because the blockage is
Sudden numbness in the face, severe headache, dizziness and confusion are some of the symptoms of a stroke.
There are three main strokes which include a ischemic stroke, hemorrhagic strokes and transient ischemic attack (TIA). A ischemic stroke is when there is a loss of blood flowing to an area of the brain, resulting in not being able to function a body properly. A hemorrhagic stroke happens when a weak blood vessel tear. According to the American Stroke Association, 13 percent of strokes are hemorrhagic. Lastly there is a transient ischemic attack (TIA) , also called a mini-stroke, a TIA is due to a temporary shortage of quantity of blood and oxygen to the brain. As Mayo Clinic states “About 1 in 3 people who have a transient ischemic attack will eventually have a stroke, with about half occurring within a year after the transient ischemic attack.”