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The emerging field of chrononutrition investigates the effects of the timing of nutritional intake on human physiology and disease pathology. It remains largely unknown when patients receiving home nutrition support routinely administer home parenteral nutrition (HPN) and/or home enteral nutrition (HEN).The present descriptive study included data collected from a patient-oriented survey designed to assess the timing of infusions and sleep habits of patients receiving HPN and HEN in the United States.A total of 100 patients were included. Patients had a mean age of 44.1 years and 81% were female. Among 73 patients supported with HPN and 27 patients supported with HEN, 86% and 44% reported overnight infusions, respectively. The median start and end times of overnight infusions were 2100 (interquartile range [IQR] = 1900-2200) and 0800 (IQR = 0700-1000), respectively, for HPN and 2000 (IQR = 1845-2137) and 0845 (IQR = 0723-1000), respectively, for HEN. Overnight infusions started 2.0 h (IQR = 1.1-3.0) and 2.0 h (IQR = 0.6-3.3) before bedtime for HPN and HEN, respectively, and stopped 12.9 min (IQR = -21.3 to 29.1) and 30.0 min (IQR = -17.1 to 79.3) after wake time for HPN and HEN, respectively. Sleep disruption because of nutrition support or urination was most common among patients receiving infusions overnight compared with those receiving infusions continuously or during the daytime.Our survey study focusing on a novel and medically relevant dimension of nutrition found that most HPN-dependent and HEN-dependent patients receive infusions overnight while asleep. Our findings suggest that overnight infusions coinciding with sleep may result in sleep and circadian disruption.

BACKGROUND Chronic intestinal failure (CIF) is an ultrarare disease, with an estimated national prevalence of ∼25,000 cases. There is a suspicion of widespread lack of expertise in CIF care, but no formal assessment tool or data exist. We developed and validated a knowledge test in CIF and now report our preliminary results from testing CIF knowledge in a cohort of US gastroenterologists. METHOD We developed a 20-question knowledge test in CIF, covering four key components of IF. After internal testing, refinement, and revision, we administered the test to a convenience sample of experts and nonexperts in IF. We then deployed the validated test to a cohort of 100 US gastroenterologists. RESULTS The test had a Cronbach alpha of 0.74, suggesting a reliable test, with a threshold score to discriminate experts and nonexperts of 13.4 (maximum 20) and with a sensitivity of 81.3% and specificity of 86.4%. The overall mean score of 8.2 for the 100 US gastroenterologists was at the level of nonexperts in our convenience sample. CONCLUSION The preliminary results of our validated knowledge test in IF among a broad group of US gastroenterologists demonstrate lack of knowledge in IF.

Background: The management of patients with enterocutaneous fistula (ECF) requires an interdisciplinary approach and poses a significant challenge to physicians, wound/stoma care specialists, dietitians, pharmacists, and other nutrition clinicians. Guidelines for optimizing nutrition status in these patients are often vague, based on limited and dated clinical studies, and typically rely on individual institutional or clinician experience. Specific nutrient requirements, appropriate route of feeding, role of immune-enhancing formulas, and use of somatostatin analogues in the management of patients with ECF are not well defined. The purpose of this clinical guideline is to develop recommendations for the nutrition care of adult patients with ECF. Methods: A systematic review of the best available evidence to answer a series of questions regarding clinical management of adults with ECF was undertaken and evaluated using concepts adopted from the Grading of Recommendations, Assessment, Development, and Evalu...

Home parenteral nutrition (HPN) is a vital lifesaving therapy for patients who are unable to maintain weight, fluid balance, nutrition, and functional status via oral or enteral nutrition alone. There are few current data sources describing HPN prevalence, patient demographics, or long-term outcomes in the United States.To describe demographics and baseline characteristics of patients receiving HPN therapy.This is a descriptive analysis of data from the first cohort of HPN patients at time of enrollment in the SustainThere were 1251 patients enrolled from 29 sites. Eighty-five percent of patients were adults, with a mean age of 51.3 ± 15.3 years. Fifteen percent were pediatric, with a mean age of 4.9 ± 4.9 years. For both age groups, short-bowel syndrome was the most frequently reported HPN indication (24%). Adults most commonly had a peripherally inserted central catheter (47%) or a tunneled catheter (43%) for HPN administration. In contrast, most pediatric patients (72%) had a tunneled catheter. Most patients received parenteral nutrition daily and consumed some oral nutrition. Twenty-eight percent of all patients were expected to require HPN indefinitely.This is the first report of descriptive data from the Sustain Registry. The data reveal important characteristics of patients receiving HPN in 29 U.S. sites.

Home parenteral nutrition (HPN) provides nourishment and hydration to patients with short bowel syndrome and intestinal failure and is thus a life-sustaining therapy for these patients. However, measures of quality of life (QOL) are lower among the HPN-dependent population than among patients with other intestinal diseases who do not require HPN. Multiple factors contribute to lower QOL in HPN-dependent patients, including fears surrounding the increased risk of HPN-associated adverse events, such as catheter-related complications, parenteral nutrition-associated liver disease, and metabolic bone disease. In addition, HPN-dependent patients report impaired sleep and daytime fatigue because of pump noises, equipment alarms, and nocturia. Psychosocial burdens on families of HPN-dependent patients include decreased social activities, disrupted family relationships and friendships, and depression. These families also face imposing financial constraints, including decreased employment and large out-of-pocket expenses for insurance premiums and nonreimbursed copayments, medications, and supplies. Furthermore, HPN technology and HPN-related complications and sequelae contribute to the rapid overall increase in the costs of healthcare systems. Additionally, family caregivers provide unpaid healthcare services for patients who require HPN, often to the detriment of their own physical and mental well-being. Nonetheless, patients dependent on HPN and their caregivers often demonstrate considerable resilience and are frequently able to normalize their response to illness and disability. Interventions that may improve QOL among HPN-dependent patients and caregivers include patient education, affiliation with support groups, treatment of concomitant symptoms, and pharmacotherapies that decrease HPN requirements.

The American Society for Parenteral and Enteral Nutrition (A.S.P.E.N.) developed a Web-based registry for nutrition care launched in early 2011, initially focusing on the home parenteral nutrition (HPN) patient population. The purpose of Sustain is to collect information regarding the patients and populations who require HPN in the United States, measure outcomes associated with HPN, allow institutional benchmarking against the aggregate data, and publish the findings to improve the quality of care for patients receiving HPN. The registry is open to all sites (hospital and home based) who care for new or existing HPN patients. Preliminary data should be available in early 2012.

Three issues were highlighted in the 30th Presidential Address to the society: (1) A.S.P.E.N.'s unique interdisciplinary structure; (2) support of the A.S.P.E.N. Rhoads Research Foundation; and (3) the meaning of food from the perspective of the patient who is receiving life-sustaining home enteral or parenteral nutrition. A.S.P.E.N., founded as a multidisciplinary society in the 1970s has evolved into an interdisciplinary society with an expanded and diverse membership of health care professionals and scientists with overlapping interests in clinical nutrition and metabolism. A.S.P.E.N. envisions an environment in which every patient receives safe, efficacious, and high quality patient care. The society is committed to advancing the science and practice of nutrition support therapy. In support of this direction, the A.S.P.E.N. Rhoads Research Foundation exists to fund research grants, promote evidence-based practice, and foster training and mentorship in nutrition and metabolic research. The scientific a...

Background Accuracy of predictive formulae is crucial for therapeutic planning because indirect calorimetry measurement is not always possible or cost effective. Energy requirements are more difficult to predict in the acutely ill obese patient compared with lean patients because of an increased resting energy expenditure per lean body mass and a variable stress response to illness. Methods A retrospective review of 726 patients identified 57 patients (32 spontaneous breathing, S; 25 ventilator dependent, V) with body mass indexes of 30-50 kg/m2. Limits-of-agreement analysis determined bias (the mean difference between measured and predicted values) and precision (the standard deviation of the bias) to evaluate the accuracy of predictive formulae compared with measured resting energy expenditure (MREE) by a Deltatrac Metabolic Monitor. Predictive accuracy was determined within+/-10% MREE. The predictive formulae examined were: variations of the Harris-Benedict equations using ideal, adjusted weights of 25% and 50% and actual weights with stress factors ranging from 1.0 to 1.5; the Ireton-Jones equation for obesity; the Ireton-Jones equations for hospitalized patients (S and V); and the ratio of 21 kcalories per kilogram actual weight. Results The mean MREE was 21 kcal/kg actual weight. The adjusted Harris-Benedict average weight equation was optimal for predicting MREE for the combined S and V sets (bias = 182+/-123; 67%+/-10% MREE), as well as the S subset (bias = 159+/-112; 69%+/-10% MREE). Conclusions The Harris-Benedict equations using the average of actual and ideal weight and a stress factor of 1.3 most accurately predicted MREE in acutely ill, obese patients with BMIs of 30-50 kg/m2. Predictive formulae were least accurate for obese, ventilator-dependent patients.

BACKGROUND Home parenteral nutrition (HPN) is a vital therapy for patients who have the diagnosis of enterocutaneous fistula (ECF), yet little is known about how these patients are managed. This research compares nutrition management of adults with ECF as the indication for HPN therapy to those with other indications. METHODS This is an analysis of data from adult HPN patients in the Sustain registry enrolled between August 2011 and February 2014 who have the diagnosis of ECF or other indication for HPN who served as the control group. Differences between the ECF and control group were assessed by t test, analysis of variance, or χ2 as appropriate. RESULTS There were 141 HPN patients with ECF and 632 control patients. Patients with ECF were older (55 vs 50 years, P < .001), more frequently had a goal for future surgery (30% vs 15%, P = .010), had greater prevalence of overweight/obesity (33% vs 20%, P = .04), and had a lower serum albumin (2.98 ± 0.65 g/dL vs 3.16 ± 0.66 g/dL, P = .006) than controls. The diet order was more frequently nil per os (NPO) in patients with ECF (48% vs 22%, P < .001), and amino acid content of HPN was greater (111.90 ± 29.11 vs 102.06 ± 27.84, P < .001) than in controls. There were no differences in patterns of weight change by ECF or control groups, although underweight patients gained, normal-weight patients maintained, and overweight/obese patients lost weight and serum albumin increased similarly. CONCLUSIONS The HPN management of patients with ECF is similar to other HPN patients other than greater provision of protein, more frequent NPO status, and a goal for future surgery.