There are two major branches of strokes: those caused by narrowing or blockage of the arteries leading towards the brain, and those caused by blood vessel leaking or rupturing in the brain. Ischemic strokes account for approximately 87% of Stroke cases, which reduces the blood flow to the brain. About half of the Ischemic strokes are caused by clotting in small or large arteries, a smaller portion are caused by
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).
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.
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.
According to our American Red Cross Nursing Assistant text a cerebral vascular accident, C.V.A., or stroke occurs when blood ﬂow to a part of the brain is interrupted. The loss of blood supply results in the death of brain cells. (Page 91) When your brain starts to die the bodily functions the brain controls can be affected. The affected bodily functions depend on what part of the brain does not receive oxygen. Web MD says damage “can occur within 3-4 minutes if not treated.”
Strokes are caused by pathophysiological changes. The two major mechanisms of stroke consist of ischemia and haemorrhage. Ischemia is when there is no oxygen or not, merely enough oxygen to fuel the tissue level in the body. Haemorrhage in the brain, causing strokes can be due to non-traumatic intracerebral haemorrhage (Shah, MD, n.d.) (see appendix 1). This essay will further discuss the implications of strokes on a cellular, organ and system level. Explain the clinical presentation of the signs and symptoms of strokes and how the condition will be managed by a paramedic.
Stroke is like a heart attack, but instead the problem is with the brain not the heart. Stroke happens when the blood that is suppose to go to the brain is blocked or reduced. When the blood supply to the brain is blocked or reduced, the brain doesn’t get enough oxygen or nutrients, which causes brain cells to die. It can also be because of smoking. Smoking creates blood clots in the artery. Stroke is the top 5 disease that caused death in the US, but for black people stroke is the top 3 disease that caused death. Stroke commonly occurs to people over the age of 65. Even though the risk of having a stroke is high over the age of 65, stroke can occur at any age. Approximately 15 million people suffer from stroke each year. 5 million of these
Smoking, drinking heavily, blood pressure, heart disease, cholesterol levels, obesity, type two diabetes, and drug usage (like cocaine and amphetamines). Most strokes occur in people aged 65 and up, however, it may also happen to small children and infants. Some things that cause strokes are unchangeable, such as gender (men are generally more affected), age, family history, or ethnicity (South-Asian and African-Caribbean people are more affected).
A stroke is when the blood flow to the brain is cut off and oxygen cannot get to the brain. This results in areas of the brain not being able to work
A cerebral vascular incident can happen to anyone at anytime. Some people know it be called a stroke, CVA, or brain attack. The majority of patients who have had a stoke will have another one within one year. Stoke tend to occur more often in the southern United States also known as the “stroke belt”. This may be related to the larger number of elderly, tobacco use, and obesity. A cerebral vascular accident ranks high in the major leading causes of death in the United States, and it happens nearly every four minutes. There are three different types of stroke ischemic, hemorrhagic, and transient ischemic attacks. The larger number of cerebral vascular accidents is known to be ischemic. The artery that supplies the brain with blood
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.
According to the New York Times, “Ischemic stroke accounts for about 75% of all strokes and occurs when a blood clot, or thrombus, forms that blocks blood flow to part of the brain” (The New York Times, 2015). If a blood clot forms somewhere in the body and breaks off to become free-floating, it is called an embolus (The New York Times, 2015). This wandering clot may be carried through the bloodstream to the brain where it can cause ischemic stroke. According to Community Connect to Research, a hemorrhagic stroke occurs when a blood vessel on the brain's surface ruptures and fills the space between the brain and skull with blood or when a defective artery in the brain bursts and fills the surrounding tissue with blood. Both result in a lack of blood flow to the brain and a buildup of blood that puts too much pressure on the brain (Community Connect to Research,
A stroke (cerebrovascular accident) occurs if the supply of oxygenated blood to the brain is reduced or blocked. Brain cells require a constant flow of oxygen rich blood and if it is restrained, brain cells begin to die within a matter of minutes. If the stroke is severe, it will lead to long term damage in the brain and the muscles which are controlled by the portion of the brain affected (Teng,2013). The three main types of strokes are hemorrhagic, ischemic and transient ischemic attacks. Ischemic stroke is the most common and involves a blood clot formation in the cerebral arteries while hemorrhagic occurs do to a brain aneurysm or blood vessel leak. The blood spills into the brain and creates immense
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
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