Malnutrition's Link To Strokes: A Cause For Concern

can malnutrition cause stroke

Malnutrition is a common problem in stroke patients, with a prevalence of 6.1% to 62% and is associated with poor outcomes. It is a significant cause of death and disability worldwide, with an estimated 12 million strokes occurring each year. Malnutrition can be caused by neurological and cognitive deficits, such as dysphagia, and can lead to an increased risk of complications such as pneumonia and gastrointestinal bleeding, prolonged hospital stays, and reduced functional improvement. Risk factors for malnutrition in stroke patients include malnutrition on admission, dysphagia, previous stroke, diabetes mellitus, tube feeding, and a reduced level of consciousness. Early identification of these risk factors is crucial for improving patient outcomes.

Characteristics Values
Prevalence of malnutrition in stroke patients 6.1% to 62%
Risk factors Malnutrition on admission, dysphagia, previous stroke, diabetes mellitus, tube feeding, reduced level of consciousness, smoking, alcohol consumption, hypertension, male sex, depressed mood, pneumonia, infection

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Malnutrition is a common problem in stroke patients, with a prevalence of 6.1% to 62%

Malnutrition is frequently observed in patients with acute stroke and during the rehabilitation period. It is associated with poor outcomes in these patients. Malnutrition is a significant problem that contributes to poor outcomes in stroke patients. It can lead to an increased rate of serious complications such as pneumonia and gastrointestinal bleeding, prolong the length of hospitalization, reduce functional improvement during rehabilitation, and ultimately, exacerbate mortality among stroke patients.

Malnutrition on admission, dysphagia, previous stroke, diabetes mellitus, tube feeding, and a reduced level of consciousness among stroke patients probably increase the risk of malnutrition during the hospital stay. Furthermore, smoking is most likely not a risk factor according to the analysis. The roles of pneumonia and infection in post-stroke malnutrition need to be re-evaluated.

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Malnutrition on admission is a risk factor for malnutrition during a hospital stay

Malnutrition is a common problem in hospitalised adults, with rates of malnutrition on admission ranging from 15% to 54% across continents. Malnutrition is associated with adverse outcomes, including longer hospital stays, higher treatment costs, and increased mortality.

Another study of 1,015 patients in 18 Canadian hospitals found that 45% were malnourished on admission, and that malnutrition at admission was independently associated with prolonged length of stay.

Malnutrition is a broad term that can refer to both over-nutrition and under-nutrition. It can be caused by a deficiency in dietary intake, increased requirements associated with a disease state, or complications of an underlying illness. Malnutrition is associated with negative outcomes for patients, including higher infection and complication rates, increased muscle loss, impaired wound healing, longer hospital stays, and increased morbidity and mortality.

Dysphagia is a major risk factor for malnutrition in stroke patients. In a study of 49 stroke patients, dysphagia and tube feeding were both strong predictors of malnutrition on admission to a rehabilitation hospital. Malnutrition may develop as a consequence of dysphagia if nutritional intake is substantially reduced over a prolonged period.

In addition to dysphagia, factors that contribute to poor nutritional intake in stroke patients include reduced level of consciousness, poor oral hygiene, depression, reduced mobility, and arm or facial weakness.

The decision on how to feed a patient with acute stroke should be made shortly after hospital admission. If the gut is functional, enteral feeding is the preferred method. Swallowing function should be assessed by a speech-language pathologist. For patients with severe dysphagia, enteral nutrition with a nasogastric tube or percutaneous endoscopic gastrostomy (PEG) is the treatment of choice.

Malnutrition is a highly prevalent and preventable complication of acute stroke. Early identification and management of malnutrition with dietary modifications or specific therapeutic strategies are crucial to enhancing the recovery of neurocognitive function and preventing adverse outcomes.

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Dysphagia is a major risk factor for malnutrition in stroke patients

Dysphagia can cause malnutrition in stroke patients in several ways. Firstly, it can lead to a reduction in nutritional intake, particularly of proteins, which can increase the risk of malnutrition. Secondly, dysphagia can cause aspiration pneumonia, which is a significant complication of stroke that can further contribute to malnutrition. Finally, dysphagia can hinder effective communication about food preferences and satiety, leading to inadequate nutritional intake and malnutrition.

The presence of dysphagia in stroke patients should be assessed through a formal and systematic screening process, which has been shown to result in fewer rates of pneumonia and mortality. Bedside screening tests, such as the Water-Swallowing Test, Multiple-Consistency Test, and Swallowing-Provocation Test, can be used to detect dysphagia and aspiration pneumonia. However, these tests may have limited sensitivity and specificity, and further assessment using more advanced techniques such as Videofluoroscopic Swallowing Study or Fiberoptic Endoscopic Evaluation of Swallowing may be necessary.

The management of dysphagia in stroke patients includes early identification, swallowing rehabilitation, and appropriate feeding methods. Early identification of dysphagia is crucial, as it can help prevent complications such as malnutrition and improve patient outcomes. Swallowing rehabilitation, such as behavioural interventions and dysphagia therapy, can help improve swallowing function and reduce the risk of malnutrition. In cases of severe dysphagia, enteral tube feeding or percutaneous endoscopic gastrostomy may be necessary to ensure adequate nutritional intake.

In summary, dysphagia is a significant risk factor for malnutrition in stroke patients, and its early identification and management are essential for improving patient outcomes.

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Malnutrition increases the risk of serious complications such as pneumonia and gastrointestinal bleeding

Malnutrition is a prevalent issue in patients with ischemic stroke, and it is linked to a higher risk of long-term death and major disability. Malnutrition is also associated with poor prognosis in a variety of diseases, including heart failure, acute coronary syndrome, and ischemic stroke.

Malnutrition increases the risk of infection and death. It impairs the immune system, including cell-mediated immunity and secretory IgA production. Malnutrition also affects every aspect of a child's health, including normal growth and development, physical activity, and response to serious illness.

Pneumonia and gastrointestinal infections are the most important causes of high mortality and morbidity among malnourished children. Malnutrition compromises host defense mechanisms, leading to increased susceptibility to infections. It impairs mucosal epithelial barriers in the gastrointestinal, respiratory, and urogenital tracts, making children more susceptible to bacterial infections.

Malnutrition also affects the immune system's ability to mount an effective response to pathogens. It impairs cytokine production and the functionality of lymphocytes, macrophages, and neutrophils. Additionally, it reduces the production of antibodies, such as IgA, which are crucial for protecting against pathogenic organisms.

The increased incidence and severity of infections in malnourished individuals are mainly due to the deterioration of immune function. Malnutrition can lead to a reduction in food intake, increased catabolism, and altered metabolic responses, further exacerbating nutritional status and increasing the risk of complications.

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Malnutrition is associated with poor outcomes in stroke patients

Malnutrition is a common complication in stroke patients, and it is associated with poor outcomes. Stroke patients with malnutrition have a higher risk of mortality, longer hospital stays, and poorer functional recovery.

Malnutrition is frequently observed in patients with acute stroke, and it is a risk factor for adverse outcomes. During the acute phase of stroke and rehabilitation, specific nutritional interventions can enhance the recovery of neurocognitive function. Early identification and management of malnutrition can help prevent or treat complications resulting from energy-protein deficits.

Several risk factors contribute to malnutrition in stroke patients, including dysphagia, previous stroke, diabetes mellitus, tube feeding, reduced level of consciousness, and older age. Malnutrition on admission is also a significant risk factor.

The prevalence of malnutrition in stroke patients varies widely, ranging from 6.1% to 62% according to different studies. This variation is attributed to differences in the timing of assessment, stroke type, patient characteristics, and nutritional assessment methods.

The assessment of nutritional status in stroke patients can be challenging due to the lack of a universally accepted definition of malnutrition and a gold standard for assessment. However, screening tools such as the Malnutrition Universal Screening Tool (MUST) and nutritional risk screening tools can be used to identify patients at risk.

Early identification and management of malnutrition in stroke patients are crucial to improving patient outcomes. Nutritional interventions should aim to prevent or treat complications and enhance neurocognitive function recovery.

Frequently asked questions

Malnutrition is a long-standing negative imbalance in both energy and protein intake and requirements, with metabolic requirements exceeding nutritional intake. It can alter body composition and cell mass, decrease fat-free mass, and worsen medical outcomes of some diseases such as stroke.

Risk factors for malnutrition in stroke patients include:

- Elderly

- Women

- Preexisting malnutrition

- Poor family or nursing care

- Presence of malignancy

- Delayed rehabilitation

- History of severe alcoholism

- Polypharmacy

- Eating difficulties

- Chronic diseases

- Functional disabilities

- High National Institutes of Health Stroke Scale (NIHSS)

- Diabetes mellitus

- Hypertension

- History of stroke

- Micronutrients deficiency

- Dysphagia

- Reduced level of consciousness

- Reduced mobility

- Facial or arm weakness

- Poor oral hygiene

- Cognitive impairments

- Visual, language, and speech deficits

- Depression and antidepressants

The assessment of the nutritional status in stroke patients is challenging because of the lack of a universally accepted definition of malnutrition and a gold standard for nutritional status assessment. It should always start by obtaining a thorough nutritional history that includes food intake, recent weight history, and the risk factors. Laboratory parameters such as total lymphocyte count, serum protein, albumin, pre-albumin, and transferrin are readily available; however, their values can be affected by the presence of inflammation.

Malnutrition in stroke patients is associated with:

- Higher rates of pressure ulcers, respiratory, and urinary tract infections

- Extended hospital stay

- Poorer functional outcome

- Increased mortality rates

- Higher dependency

- Longer duration of hospitalization and rehabilitation

The management of malnutrition in stroke patients includes nutritional interventions such as oral nutritional support and enteral tube feeding. The type of feeding depends on the swallowing status of the stroke patient. If dysphagia is present, enteral nutrition (EN) through nasogastric tube (NGT) or percutaneous endoscopic gastrostomy/jejunostomy (PEG/J) is a preferred intervention to oral feeding.

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