Understanding Stroke
Diagnosis and Clinical Features of Stroke
Several researchers have attempted to determine the general public's knowledge about stroke risk factors and warning signs. The most commonly cited risk factors were hypertension and stress; the most frequently identified warning signs were dizziness, severe headaches, and unspecified weakness. Knowledge about warning signs may prompt early recognition of strokes and, hence increase the speed and aggressiveness with which people seek medical attention. The five stroke warning signs identified by the National Institute of Neurological Disorders and stroke include: (a) sudden weakness of the face, arm, or leg on one side of the body; (b) sudden dimness or loss of
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As a consequence, over the hours and days after a stroke oedema frequently occurs. This may be the cause of mortality in a proportion of patients, particularly those with large strokes.
Studies completed over the last 15 years have shown that glutamate is the powerful neurotoxin in stroke, capable of killing neurons in the central nervous system when its extracellular concentration is sufficiently high. Many experiments show that glutamate plays a key role in ischemic brain damage and that drugs which decrease the accumulation of glutamate or block its postsynaptic effects may be rational therapy for stroke. Glutamate also causes an influx of sodium ions into neurons, correctly anticipating many of the more sophisticated neurophysiological experiments of the past two decades. In a study of spreading depression of cerebral cortical activity, it was also suggested that extracellular Glu could increase the sodium permeability of neurons. Glutamate has been localized to excitatory terminals in the hippocampus.
All in the family or not? Non-Genetic and Genetic Risk Factors
A primary component of public health education about strokes is information about modifiable and non-modifiable risk factors. Non-modifiable risk factors include being elderly and being male, having an immediate relative who is a stroke survivor or being a stroke survivor yourself, and being of African American heritage. In addition, dyslipidemica (high cholesterol,
7,000 strokes occur in Americans every year. For Hispanics it is the third leading cause of death. This article emphasizes the importance of knowing the symptoms of the stroke to reduce the chances of its occurrences. Prevention tips include: stop smoking, eat a healthy diet, exercise regularly, and work to control high blood pressure and manage diabetes. (Strokes Affect Thousands of Hispanics Each Year - Learn To Recognize Symptoms: Brandon Alvarez Montgomery
Strokes are the 5th leading cause of death in the US, with one person dying every 4 minutes as a result. For African Americans, stoke is the 3rd leading cause of death.(http://www.cdc.gov/stroke/facts.htm) It is estimated that About 795,000 people have a stroke each year; about one every 40 seconds - there are many medical conditions that can cause a stroke and it is estimated that 8 out of 10 strokes can be prevented. However, there are some things that cannot be controlled when you are predisposed to
Stroke is seen as a major health concern and this is due to the fact that every year, as many as 110,000 individuals suffers from strokes making it a key issue. (NHS 2014)
The health issue that this artifact discusses is the significance of knowing and recognizing the warning signs of a stroke. The American Heart Association has made it their mission to provide unlimited health information and research in the hopes of eliminating cardiovascular diseases as well as helping society in maintaining a healthy lifestyle. “Stroke is the number 5 cause of death and a leading cause of
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 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
Strokes are the fifth leading cause of deaths in America. They are also one of the leading causes of disabilities in adults. There are many factors, such as atrial fibrillation and lifestyle factors, which could lead to a potential stroke. There is the atrial fibrillation (shortened to “AFib”) and stroke connection. AFib is the constant and irregular beating of the two atria valves of the heart. The irregular heartbeats can cause blood to form clots in the heart and travel towards the brain. There are other types of risk factors that can lead to strokes, which are medical risk factors, lifestyle risk factors, and uncontrollable risk factors. Some examples of medical risk factors include high blood pressure, circulation problems, high cholesterol,
Strokes are commonly associated with old age, symptoms and awareness are often unnoticed in young adults due to ambiguity about strokes.
Strokes are caused by a block in the blood supply to the brain which causes a decrease in oxygen and delivery of other important supplies which facilitate proper functioning. Fifteen million cases are reported worldwide annually, although not all of these cases are mortalities, the large prevalence of strokes ranks it as the fourth leading cause of death in the United States. (Figueroa) Because of the time sensitivity associated with the lack of resources to the brain, strokes are considered a medical emergency and early recognition of symptoms can help decrease the amount of damage caused . Although strokes do not always cause death, strokes most often leave the individual with some physical and cognitive impairment.
Stroke is the fourth leading cause of death in the United States. Each year more than 795,000 Americans suffer from a stroke, which means that every forty seconds someone has stroke (Liebman, 2012). Although a stroke can occur at any age, strokes are frequently seen in the older adult demographics. An increase with age doubles the risk for a stroke each decade after 55 (Grysiewicz, 2008). The percentage of stroke survivors to almost fully recover from a stroke is only 10 percent; in contrast, 40 percent of stroke survivors will face moderate to severe impairment which will entail distinctive care (Perlmutter and Colman, 2005). When all strokes are analyzed according to demography of class system, approximately 60% of strokes occur in low or middle income countries (Silverman and Rymer, 2009).
The risk factors for stroke can be classified into non-modifiable and modifiable. Non-modifiable risk factors include age, family history, prior stroke, gender, and race. Whereas modifiable risk factors are hypertension, diabetes mellitus, coronary artery disease, atrial fibrillation, dyslipidemia, cigarette smoking, obesity, valvular heart disease, alcohol abuse, and physical inactivity (Basharat et al., 2012).
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
These co-morbidities include, hypertension, diabetes, coronary heart disease, and taking certain medications. (Ostwald, Sharon K., et al., 2006). These stroke-related co-morbidities are important to recognize and understand before a stroke occurs. People must learn of and accept conditions they have and be aware of the complications, such as a stroke, that can occur. These co-morbidities are also some of the main causes of strokes. When someone experiences a stroke and survives, it is often difficult to recover, and many complications and risk factors can occur as a result. A study done by a group of registered nurses discussed the difference medical complications stroke survivors can experience. They stated:
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).
Each year alone about 150,000 people in America die from a stroke or are seriously disabled. Stroke is among the top five causes of death. It generally happens very suddenly and it can take up to five to seven days to completely effect the patient. Depending on how many of the brain cells die during the stroke, and