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Feeding should be individualized in the critically ill patients.
Berger, MM, Pichard, C
Current opinion in critical care. 2019;(4):307-313
Abstract
PURPOSE OF REVIEW Any critical care therapy requires individual adaptation, despite standardization of the concepts supporting them. Among these therapies, nutrition care has been repeatedly shown to influence clinical outcome. Individualized feeding is the next needed step towards optimal global critical care. RECENT FINDINGS Both underfeeding and overfeeding generate complications and should be prevented. The long forgotten endogenous energy production, maximal during the first 3 to 4 days, should be integrated in the nutrition plan, through a slow progression of feeding, as full feeding may result in early overfeeding. Accurate and repeated indirect calorimetry is becoming possible thanks to the recent development of a reliable, easy to use and affordable indirect calorimeter. The optimal timing of the prescription of the measured energy expenditure values as goal remains to be determined. Optimal protein prescription remains difficult as no clinically available tool has yet been identified reflecting the body needs. SUMMARY Although energy expenditure can now be measured, we miss indicators of early endogenous energy production and of protein needs. A pragmatic ramping up of extrinsic energy provision by nutrition support reduces the risk of overfeeding-related adverse effects.
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Evidence-based nutrition for the malnourished, hospitalised patient: one bite at a time.
Merker, M, Gomes, F, Stanga, Z, Schuetz, P
Swiss medical weekly. 2019;:w20112
Abstract
Although malnutrition is a highly prevalent condition in the inpatient setting, particularly in older patients with multiple morbidities, the medical community has struggled to find efficient, evidence-based approaches for its prevention and treatment. From an evolutionary perspective, illness-related low appetite may be seen as a protective response with the goals to accelerate recovery from disease by improving autophagy. In line with this, earlier trials in the intensive care setting including severely ill patients have demonstrated unwarranted effects of overnutrition on patient outcomes. Uncertainties regarding the best approach to the malnourished inpatient in conjunction with a lack of strong trial data may, in part, explain the low level of attention that hospital medical staff have paid to the issue of malnutrition in the non-critical care inpatient setting. The recent Effect of early nutritional support on Frailty, Functional Outcomes and Recovery of malnourished medical inpatients Trial (EFFORT) study, however, has shown that individualized nutritional support reduces severe complications and improves mortality in medical inpatients, with positive effects on functional outcomes and quality of life. These results from a high quality effectiveness trial in conjunction with other studies, such as the NOURISH trial, should prompt us to improve our management of malnutrition in the inhospital setting. This procedure should start with a systematic screening for risk of malnutrition of admitted patients, effective assessment of nutritional status in multidisciplinary teams including dieticians, nurses and physicians, and early start of individualized adequate nutritional support of at risk patients to reach nutritional goals. Understanding the optimal use of nutritional support in patients with acute illness is complex because timing, route of delivery, and the amount and type of nutrients may all affect patient outcomes. Also, particularly for patients on the medical ward, factors like the logistics of catering, staffing to provide food and support the patient (i.e., number of nurses and dieticians), motivation/understanding of the patient to eat in defiance of appetite, the empathic human factor of nutritional care, the quality of meals, the taste of supplements, and unnecessary fasting for diagnostic or therapeutic procedures have a strong influence on nutritional care of patients. Further research and clinical trials are required to better understand, step by step, how we can use clinical nutrition best to maximize recovery of our patient and improve their functional status and their quality of life. Such evidence regarding nutritional therapy may allow us to implement personalized nutrition-driven interventions in the future.
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Cachexia/Protein energy wasting syndrome in CKD: Causation and treatment.
Oliveira, EA, Zheng, R, Carter, CE, Mak, RH
Seminars in dialysis. 2019;(6):493-499
Abstract
Cachexia is a multifactorial syndrome defined by significant body weight loss, fat and muscle mass reduction, and increased protein catabolism. Protein energy wasting (PEW) is characterized as a syndrome of adverse changes in nutrition and body composition being highly prevalent in patients with CKD, especially in those undergoing dialysis, and it is associated with high morbidity and mortality in this population. Multiple mechanisms are involved in the genesis of these adverse nutritional changes in CKD patients. There is no obvious distinction between PEW and cachexia from a pathophysiologic standpoint and should be considered as part of the spectrum of the same nutritional disorder in CKD with similar management approaches for prevention and treatment based on current understanding. A plethora of factors can affect the nutritional status of CKD patients requiring a combination of therapeutic approaches to prevent or reverse protein and energy depletion. At present, there is no effective pharmacologic intervention that prevents or attenuates muscle atrophy in catabolic conditions like CKD. Prevention and treatment of uremic muscle wasting involve optimal nutritional support, correction of acidosis, and physical exercise. There has been emerging consistent evidence that active treatment, perhaps by combining nutritional interventions and resistance exercise, may be able to improve but not totally reverse or prevent the supervening muscle wasting and weakness. Active research into more direct pharmacological treatment based on basic mechanistic research is much needed for this unmet medical need in patients with CKD.
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Nutrition Management in Acute Pancreatitis.
Ramanathan, M, Aadam, AA
Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition. 2019;:S7-S12
Abstract
Acute pancreatitis (AP) is one of the most prevalent gastrointestinal conditions necessitating inpatient care. In the United States, over 275,000 patients are hospitalized for management of AP, with an estimate that over $2.5 billion is spent annually in treatment, with incidence continuing to rise. AP is a highly inflammatory and catabolic state, putting all patients with the condition at risk of malnutrition. Numerous approaches to nutrition support in pancreatitis have been evaluated and remain controversial. In this narrative review, we aim to give an overview of indications for nutrition and approach to management of nutrition in severe and predicted severe AP based on currently available data.
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Malnutrition in pulmonary arterial hypertension: a possible role for dietary intervention.
Kwant, CT, Ruiter, G, Vonk Noordegraaf, A
Current opinion in pulmonary medicine. 2019;(5):405-409
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Abstract
PURPOSE OF REVIEW The last decade's progress has been made in the pharmacological treatment of pulmonary arterial hypertension (PAH). The role of nutrition in relation to quality of life in this group of patients is not investigated yet. In addition to avoiding salt and high-fluid intake based on left heart failure diet, there is no evidence-based diet recommendation for PAH. RECENT FINDINGS It was recently demonstrated that patients with PAH suffer from malnutrition resulting in iron and vitamin D deficiency and glucose/insulin resistance. Recent experimental studies suggest that besides reduced malabsorption of important nutrients, the microbiome of the gut is also less diverse in PAH. In this review, we summarize the current knowledge on malnutrition and dietary intake in PAH. We discuss the possible underlying mechanisms and discuss novel therapeutic interventions validated in patients with left heart failure. SUMMARY Large-scaled studies on dietary interventions are needed in PAH.
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Nutritional support in the recovery phase of critically ill children.
Joosten, KFM, Eveleens, RD, Verbruggen, SCAT
Current opinion in clinical nutrition and metabolic care. 2019;(2):152-158
Abstract
PURPOSE OF REVIEW The metabolic stress response of a critically ill child evolves over time and thus it seems reasonable that nutritional requirements change during their course of illness as well. This review proposes strategies and considerations for nutritional support during the recovery phase to gain optimal (catch-up) growth with preservation of lean body mass. RECENT FINDINGS Critical illness impairs nutritional status, muscle mass and function, and neurocognition, but early and high intakes of artificial nutrition during the acute phase cannot resolve this. Although (parenteral) nutrient restriction during the acute phase appears to be beneficial, persistent nutrient restriction, when the metabolic stress response resolves, has short-term and long-term detrimental consequences. Requirements increase markedly during the recovery phase to enable recovery and catch-up growth. Such large amounts of intake demand for alternate approach, especially when intestinal problems constitute a barrier for full enteral feeding. As part of the nutritional recovery, mobilization and exercise are essential to achieve catch-up growth with an optimal body composition. SUMMARY During the recovery phase of paediatric critical illness (catch-up) growth and muscle recovery require nutritional intakes at least two times the resting energy expenditure.
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Growth and Nutrition in Cystic Fibrosis.
Brownell, JN, Bashaw, H, Stallings, VA
Seminars in respiratory and critical care medicine. 2019;(6):775-791
Abstract
Optimal nutrition support has been integral in the management of cystic fibrosis (CF) since the disease was initially described. Nutritional status has a clear relationship with disease outcomes, and malnutrition in CF is typically a result of chronic negative energy balance secondary to malabsorption. As the mechanisms underlying the pathology of CF and its implications on nutrient absorption and energy expenditure have been elucidated, nutrition support has become increasingly sophisticated. Comprehensive nutrition monitoring and treatment guidelines from professional and advocacy organizations have unified the approach to nutrition optimization around the world. Newborn screening allows for early nutrition intervention and improvement in short- and long-term growth and other clinical outcomes. The nutrition support goal in CF care includes achieving optimal nutritional status to support growth and pubertal development in children, maintenance of optimal nutritional status in adult life, and optimizing fat soluble vitamin and essential fatty acid status. The mainstay of this approach is a high calorie, high-fat diet, exceeding age, and sex energy intake recommendations for healthy individuals. For patients with exocrine pancreatic insufficiency, enzyme replacement therapy is required to improve fat and calorie absorption. Enzyme dosing varies by age and dietary fat intake. Multiple potential impediments to absorption, including decreased motility, altered gut luminal bile salt and microbiota composition, and enteric inflammation must be considered. Fat soluble vitamin supplementation is required in patients with pancreatic insufficiency. In this report, nutrition support across the age and disease spectrum is discussed, with a focus on the relationships among nutritional status, growth, and disease outcomes.
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Modification of Nutrition Therapy During Continuous Renal Replacement Therapy in Critically Ill Pediatric Patients: A Narrative Review and Recommendations.
Jonckheer, J, Vergaelen, K, Spapen, H, Malbrain, MLNG, De Waele, E
Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition. 2019;(1):37-47
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Abstract
INTRODUCTION Nutrition is an important part of treatment in critically ill children. Clinical guidelines for nutrition adaptations during continuous renal replacement therapy (CRRT) are lacking. We collected and evaluated current knowledge on this topic and provide recommendations. METHODS Questions were produced to guide the literature search in the PubMed database. RESULTS Evidence is scarce and extrapolation from adult data was often required. CRRT has a direct and substantial impact on metabolism. Indirect calorimetry is the preferred method to assess resting energy expenditure (REE). Moderate underestimation of REE is common but not clinically relevant. Formula-based calculation of REE is inaccurate and not validated in critically ill children on CRRT. The nutrition impact of nonintentional calories delivered as citrate, lactate, and glucose during CRRT must be considered. Quantifying nitrogen balance is not feasible during CRRT. Protein delivery should be increased by 25% to compensate for losses in the effluent. Fats are not removed by CRRT and should not be adapted during CRRT. Electrolyte disturbances are frequently present and should be treated accordingly. Vitamins B1, B6, B9, and C are lost in the effluent and should be adapted to the effluent dose. Trace elements, with the exception of selenium, are not cleared in relevant quantities. Manganese accumulation is of concern because of potential neurotoxicity. CONCLUSION Current recommendations regarding nutrition support in pediatric CRRT must be extrapolated from adult studies. Recommendations are provided, based on the weak level of evidence. Additional research on this topic is warranted.
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Optimizing the Host in Fracture Surgery.
Bergin, PF, Tarkin, IS, Kempton, LB, Sagi, HC, Hsu, J, Archdeacon, MT
Journal of orthopaedic trauma. 2019;:S34-S38
Abstract
Multiple factors impact fracture healing; thus, endocrine optimization and nutritional optimization warrant investigation in the acute fracture and nonunion patient. This article presents current evidence regarding the role of the endocrinologists and the dietician in the fracture patient as well as the most recent data assessing the vitamin D axis in these populations. Similarly, the most recent information regarding the use and risks of NSAIDs in fracture healing are presented. The fracture surgeon must consider each individual patient and weigh the benefits versus the costs of host optimization.
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Enhancing the decision-making process when considering artificial nutrition in advanced dementia care.
De, D, Thomas, C
International journal of palliative nursing. 2019;(5):216-223
Abstract
BACKGROUND Nutritional problems often manifest during late-stage dementia, and some families may request to instigate artificial nutrition and hydration (ANH) therapies. In the US, an estimated one-third of nursing home patients with a severe cognitive impairment have artificial feeding tubes inserted. Fear that a relative could experience extreme hunger or thirst if they are not mechanically fed tends to be the main driver behind family's requests to implement artificial or enteral feeding methods. In contrast, artificial hydration is rarely given to older people with dementia in the UK and this practice of non-intervention tends to apply across all healthcare and hospice type environments. AIM: This literature review aims to evaluate the evidence to support the use and non-use of ANH. METHOD A literature review was undertaken to examine the evidence around ANH for patients with dementia to offer support to families or carers contemplating feeding choices. CONCLUSION This paper challenges the implementation of invasive ANH worldwide. It highlights how resorting to ANH does not necessarily lead to improvements in comfort, survival or wound healing. The risk of aspiration does not appear to significantly alter either.