Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition
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Historically, randomized controlled trials (RCTs) in critical care have used mortality as the primary outcome, yet most show no effect on this outcome. Therefore, there has been a shift in the literature to focus on alternative outcomes. This review aimed to describe primary outcomes selected in RCTs of nutrition interventions in critical illness. ⋯ Morbidity was the most frequently reported outcome category in RCTs that evaluated a nutrition intervention in critically ill adults, with mortality least frequent. Power calculations were only reported in 58% of included studies. Trials were more likely to show a significant result when an outcome other than mortality was the primary outcome.
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The current recommendation for protein dose in critically ill patients is 1.2-2.0 g/kg/d. Despite this recommendation, there is significant variation in the amount of protein prescribed and delivered worldwide. We contend clinical equipoise, or a state of genuine uncertainty about 2 (dosing) strategies, exists because guideline-based recommendations for protein dose in critically ill patients are rooted in a weak evidentiary base, leaving the clinician with no good basis for choosing a lower or higher protein dose. We outline evidence for and against high protein dose and introduce a pragmatic, registry-based, multicenter, randomized controlled trial, known as EFFORT, which aims to resolve the high vs low protein dose controversy.
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Review Practice Guideline
ASPEN Consensus Recommendations for Refeeding Syndrome.
In the spring of 2017, the American Society for Parenteral and Enteral Nutrition (ASPEN) Parenteral Nutrition Safety Committee and the Clinical Practice Committee convened an interprofessional task force to develop consensus recommendations for identifying patients with or at risk for refeeding syndrome (RS) and for avoiding and managing the condition. This report provides narrative review and consensus recommendations in hospitalized adult and pediatric populations. ⋯ These consensus recommendations are intended to provide guidance regarding recognizing risk and identifying, stratifying, avoiding and managing RS. This consensus definition is additionally intended to be used as a basis for further research into the incidence, consequences, pathophysiology, avoidance, and treatment of RS.
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Irritable bowel syndrome (IBS) is classified as a functional gastrointestinal (GI) disorder characterized by abdominal pain, bloating, and changes in bowel function. Although the pathophysiology of IBS is incompletely understood, fermentable carbohydrates are implicated as a potential cause of symptoms. An elimination diet, such as a low-FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) diet, represents a potential intervention for reducing GI symptoms in patients with IBS. ⋯ These studies demonstrate that dietary elimination of fermentable carbohydrates, such as through a low-FODMAP diet, reduces the severity of 1 or more GI symptoms in about one-quarter to one-half of pediatric patients with IBS. Patients without improvement are considered "nonresponders" and may require an alternative intervention. More research is needed to establish the best way to identify patients who would respond to elimination diets vs other IBS treatment strategies.
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Children with inflammatory bowel diseases (IBDs) are at risk of developing nutrition deficiencies, particularly because of reduced intake, restrictive diets, malabsorption, and excessive nutrient loss. In this study, we aimed to assess the status of trace elements, minerals, and vitamins in a large cohort of children with IBDs. ⋯ Deficiencies in iron, zinc, and vitamin D are common at pediatric IBD diagnosis with limited improvement during follow-up, whereas deficiencies in magnesium and vitamin B12 are rare.