Management of Irritable Bowel Syndrome: Physician-Dietitian Collaboration.

Irritable bowel syndrome (IBS) affects 10%-15% of adults in the United States and 12% of the worldwide population. Gastroenterologists as well as primary care practitioners are likely to be the first resource for patients with gastrointestinal (GI) symptoms. IBS is difficult to diagnose, as it is a functional GI disorder, determined after ruling out a myriad of other diagnoses. The 2016 Rome IV criteria define IBS as "a functional bowel disorder in which recurrent abdominal pain is associated with defecation or a change in bowel habits. Disordered bowel habits are typically present (ie, constipation, diarrhea, or a mix of constipation and diarrhea), as are symptoms of abdominal bloating/distension occurring over at least 6 months and not less than 3 months." Treatment of IBS historically has been through medical management; however, nutrition management of IBS using the FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) elimination diet is now a recommended, first-line therapy. FODMAPs are short-chain, poorly absorbed carbohydrates that are associated with symptoms in people with IBS. This diet intervention can be quite challenging, and therefore, patients should meet with a qualified dietitian who can provide the complex diet information in a practicable form. Physician-dietitian collaboration is invaluable for IBS patients to achieve a successful outcome.

Enteral and Parenteral Order Writing Survey-A Collaborative Evaluation Between the Academy of Nutrition and Dietetics' Dietitians in Nutrition Support Dietetics Practice Group and the American Society for Parenteral and Enteral Nutrition (ASPEN) Dietetics Practice Section.

INTRODUCTION: In 2014 and 2017, the Centers for Medicare and Medicaid Services authorized nutrition-related ordering privileges for registered dietitian nutritionists (RDNs) in hospital and long-term care settings, respectively. Despite this practice advancement, information describing current parenteral nutrition (PN) and enteral nutrition (EN) ordering practices is lacking. Dietitians in Nutrition Support, a dietetic practice group of the Academy of Nutrition and Dietetics and the Dietetics Practice Section of the American Society of Parenteral and Enteral Nutrition (ASPEN) utilized a survey to describe PN and EN ordering practices among RDNs in the United States. METHODS: A cross-sectional study design was utilized to describe RDN PN and EN ordering privileges. Respondents were asked to describe PN and EN ordering privileges, primary practice setting, primary patient population served, nutrition specialty certification, highest degree earned, career length, and, if applicable, the nature of prior denials for ordering privileges or reasons for not applying for ordering privileges. RESULTS: Seven hundred two RDNs completed the survey (12% response rate), with 664 RDNs providing complete data. The majority of respondents (n=558) cared for adult/geriatric patients. Among this subset, 47% had no PN ordering privileges; 14% could order and sign PN; 28% could order PN with provider cosignature; and 10% could order partial PN with provider cosignature. Nineteen percent of RDNs had no EN ordering privileges; 37% could order and sign EN; and 44% could order EN with provider cosignature. RDNs with ordering privileges were more likely to have a nutrition specialty certification and work in an academic or community hospital setting. CONCLUSION: PN and EN ordering privileges are varied because of institution and state requirements. Future research describing the outcomes associated with RDN ordering privileges is needed. This article has been approved by the Academy's Research, International, and Scientific Affairs team and Council on Research and the ASPEN Board of Directors. This article has been co-published with permission in Nutrition in Clinical Practice. The articles are identical except for minor stylistic and spelling differences in keeping with each journal's style. Either citation can be used when citing this article.

Enteral and Parenteral Order Writing Survey-A Collaborative Evaluation Between the Academy of Nutrition and Dietetics' Dietitians in Nutrition Support Dietetics Practice Group and the American Society for Parenteral and Enteral Nutrition (ASPEN) Dietetics Practice Section.

INTRODUCTION: In 2014 and 2017, the Centers for Medicare and Medicaid Services authorized nutrition-related ordering privileges for registered dietitian nutritionists (RDNs) in hospital and long-term care settings, respectively. Despite this practice advancement, information describing current parenteral nutrition (PN) and enteral nutrition (EN) ordering practices is lacking. Dietitians in Nutrition Support, a dietetic practice group of the Academy of Nutrition and Dietetics and the Dietetics Practice Section of the American Society of Parenteral and Enteral Nutrition (ASPEN) utilized a survey to describe PN and EN ordering practices among RDNs in the United States. METHODS: A cross-sectional study design was utilized to describe RDN PN and EN ordering privileges. Respondents were asked to describe PN and EN ordering privileges, primary practice setting, primary patient population served, nutrition specialty certification, highest degree earned, career length, and if applicable, the nature of prior denials for ordering privileges or reasons for not applying for ordering privileges. RESULTS: Seven hundred two RDNs completed the survey (12% response rate), with 664 RDNs providing complete data. The majority of respondents (n = 558) cared for adult/geriatric patients. Among this subset, 47% had no PN ordering privileges; 14% could order and sign PN; 28% could order PN with provider cosignature; 10% could order partial PN with provider cosignature. Nineteen percent of RDNs had no EN ordering privileges; 37% could order and sign EN; 44% could order EN with provider cosignature. RDNs with ordering privileges were more likely to have a nutrition specialty certification and work in an academic or community hospital setting. CONCLUSION: PN and EN ordering privileges are varied because of institution and state requirements. Future research describing the outcomes associated with RDN ordering privileges is needed. This paper has been approved by the Academy's Research, International, and Scientific Affairs team and Council on Research and the ASPEN Board of Directors. This article has been co-published with permission in the Journal of the Academy of Nutrition and Dietetics. The articles are identical except for minor stylistic and spelling differences in keeping with each journal's style. Either citation can be used when citing this article.

Essential Fatty Acid Requirements and Intravenous Lipid Emulsions.

Linoleic acid (LA) and α-linolenic acid (ALA) must be supplied to the human body and are therefore considered essential fatty acids. This narrative review discusses the signs, symptoms, diagnosis, prevention, and treatment of essential fatty acid deficiency (EFAD). EFAD may occur in patients with conditions that severely limit the intake, digestion, absorption, and/or metabolism of fat. EFAD may be prevented in patients requiring parenteral nutrition by inclusion of an intravenous lipid emulsion (ILE) as a source of LA and ALA. Early ILEs consisted solely of soybean oil (SO), a good source of LA and ALA, but being rich in LA may promote the production of proinflammatory fatty acids. Subsequent ILE formulations replaced part of the SO with other fat sources to decrease the amount of proinflammatory fatty acids. Although rare, EFAD is diagnosed by an elevated triene:tetraene (T:T) ratio, which reflects increased metabolism of oleic acid to Mead acid in the absence of adequate LA and ALA. Assays for measuring fatty acids have improved over the years, and therefore it is necessary to take into account the particular assay used and its reference range when determining if the T:T ratio indicates EFAD. In patients with a high degree of suspicion for EFAD, obtaining a fatty acid profile may provide additional useful information for making a diagnosis of EFAD. In patients receiving an ILE, the T:T ratio and fatty acid profile should be interpreted in light of the fatty acid composition of the ILE to ensure accurate diagnosis of EFAD.

Home Parenteral and Enteral Nutrition During Natural Disasters: A Guide for Clinicians and Consumers.

Natural disasters are most often weather related but can also be unrelated to weather. Either way, these disrupt "normal" life for a short or extended period of time. When someone depends on electricity, clean water, and transportation services for life-sustaining therapies such as home nutrition support, it is important to have a plan in place-even if it is never used. Understanding supply needs, access to home utilities, and when to change location should be discussed, determined, and defined. In this article, the authors strive to provide this information for home parenteral and enteral nutrition support patients (consumers), caregivers, and clinicians.

The low FODMAP diet: fundamental therapy in the management of irritable bowel syndrome.

PURPOSE OF REVIEW: The low FODMAP diet is now recognized as first-line therapy for treatment of irritable bowel syndrome (IBS) symptoms including abdominal pain, gas, bloating, diarrhea and or constipation. This information must be disseminated for application to clinical practice. RECENT FINDINGS: There are many people with IBS worldwide who can benefit from following the low FODMAP diet to alleviate or minimize symptoms. Clinical studies and trials demonstrating the positive outcomes of the low FODMAP diet have been based on diet education provided by dietitians. Understanding the types of carbohydrates that are high in FODMAPs and the associated symptoms, nutrition intervention can be targeted using the low FODMAP diet. The nutrition intervention is relatively in expensive, noninvasive and basically without side-effects if monitored by a dietitian and clinical team. SUMMARY: Applying the low FODMAP diet in IBS can greatly improve health and quality of life outcomes by alleviating or significantly improves symptoms.

Characteristics of a Cohort of Home Parenteral Nutrition Patients at the Time of Enrollment in the Sustain Registry.

BACKGROUND: 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. OBJECTIVE: To describe demographics and baseline characteristics of patients receiving HPN therapy. METHODS: This is a descriptive analysis of data from the first cohort of HPN patients at time of enrollment in the SustainTM Registry between August 2011 and February 2014. RESULTS: There 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. CONCLUSIONS: 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.

Irritable bowel syndrome: contemporary nutrition management strategies.

Irritable bowel syndrome is a complex disorder whose pathophysiology involves alterations in the enteric microbiota, visceral hypersensitivity, gut immune/barrier function, hypothalamic-pituitary-adrenal axis regulation, neurotransmitters, stress response, psychological factors, and more. The importance of diet in the management of irritable bowel syndrome has taken center stage in recent times as the literature validates the relationship of certain foods with the provocation of symptoms. Likewise, a number of elimination dietary programs have been successful in alleviating irritable bowel syndrome symptoms. Knowledge of the dietary management strategies for irritable bowel syndrome will help guide nutritionists and healthcare practitioners to deliver optimal outcomes. This tutorial reviews the nutrition management strategies for irritable bowel syndrome.

A longitudinal study investigating quality of life and nutritional outcomes in advanced cancer patients receiving home parenteral nutrition.

BACKGROUND: In cancer patients where gastrointestinal function is marginal and malnutrition significant enough to result in the requirement for intensive nutrition support, parenteral nutrition (PN) is indicated. This longitudinal study examined the quality of life (QoL) and nutritional outcomes in advanced cancer patients receiving home PN (HPN). METHODS: Fifty-two adult cancer patients (21 males, 31 females, average age 53 years) treated at a specialized cancer facility between April 2009 and November 2011 met criteria. QoL and nutritional status were measured at baseline and every month while on HPN using EORTC-QLQ-C30, Karnofsky Performance Status (KPS), and Subjective Global Assessment (SGA). Repeated measures ANOVA and Generalized Estimating Equations (GEE) were used to evaluate longitudinal changes in QoL and SGA. RESULTS: Cancer diagnoses included pancreatic (n = 14), colorectal (n = 11), ovarian (n = 6), appendix (n = 5), stomach (n = 4) and others (n = 12). Average weight loss 6-months prior to HPN was 13.2 kg (16.9%). Average weight at initiation of HPN was 62.2 kg. In patients with available follow-up data after 1 month (n = 39), there was a significant improvement in SGA, weight (61.5 to 63.1 kg; p = 0.03) and KPS (61.6 to 67.3; p = 0.01) from baseline. Similarly, after 2 months (n = 22), there was an improvement in global QoL (37.1 to 49.2; p = 0.02), SGA, weight (57.6 to 60 kg; p = 0.04) and KPS (63.2 to 73.2; p = 0.01) from baseline. Finally, after 3 months (n = 15), there was an improvement in global QoL (30.6 to 54.4; p = 0.02), SGA, weight (61.1 to 65.9 kg; p = 0.04) and KPS (64.0 to 78.7; p = 0.002) from baseline. Upon GEE analysis, every 1 month of HPN was associated with an increase of 6.3 points in global QoL (p<0.001), 1.3 kg in weight (p = 0.009) and 5.8 points in KPS (p<0.001). CONCLUSIONS: HPN is associated with an improvement in QoL, KPS and nutritional status in advanced cancer patients, irrespective of their tumor type, who have compromised enteral intake and malnutrition. The greatest benefit was seen in patients with 3 months of HPN, although patients receiving HPN for 1 or 2 months also demonstrated significant improvements.

Practice paper of the American Dietetic Association: Home care--opportunities for food and nutrition professionals.

Home care continues to expand. With this growth are opportunities for registered dietitians (RDs) to demonstrate the vital role that they play not only in providing optimal nutrition care, but also in contributing to each patient's quality of life. Home care nutrition services range from individual patient counseling to managing and monitoring parenteral nutrition. RDs' knowledge of nutrition, reimbursement, and new technologies position them to improve care and control costs. Current roles and responsibilities along with emerging areas of professional growth give RDs a multitude of options to provide and expand their services and value in home care.

Adjusted body weight, con: why adjust body weight in energy-expenditure calculations?

Evaluation of energy requirements of normal individuals and hospitalized patients is most often accomplished using an energy equation. Energy equations attempt to measure resting metabolic rate (RMR), the largest factor in total daily energy expenditure. Components of most energy equations include height, weight, age, and gender. These factors are related to energy expenditure; however, each factor has individual characteristics that affect energy expenditure. Body weight is a major factor in RMR and total daily energy expenditure. For obese individuals, estimation of energy expenditure may be a challenge due to the increased body weight. Therefore, some equations attempt to minimize the effect of body weight on energy expenditure assessment by adjusting the obese individual's body weight. Data do not support adjustment of body weight in normal individuals. In hospitalized patients, there are several equations that are used to estimate energy expenditure of obese patients, which include adjusting the body weight and modifying the overall energy requirements. Measurement of RMR can obviate the need for estimating energy expenditure. It is important to evaluate any energy-expenditure equation that is used to estimate energy needs in normal people and hospitalized patients before applying it to patient care.

Home parenteral nutrition registry: a five-year retrospective evaluation of outcomes of patients receiving home parenteral nutrition support.

OBJECTIVE: Few data are currently reported on home parenteral nutrition (HPN) patient outcomes, which makes evaluating comparative outcomes in HPN difficult. This study describes outcomes of consecutive HPN patients collected retrospectively over a 5-y period by one HPN support provider. METHODS: Retrospective data from the HPN support provider was aggregated yearly from 1997 to 2001. Length of therapy, demographics, diagnosis, rehospitalizations, catheter infection rate, catheter occlusion rate, and mechanical complication rate data were reported. RESULTS: The mean age of HPN patients ranged from 42 y to 45 y. The average length of HPN therapy was 100 d. There were more female than male HPN patients. Nutritional deficiency and malabsorption were the most common International Classification of Diseases, Ninth Revision codes for HPN use and reflects a focus on nutritional diagnosis rather than on disease state as the criterion for HPN use. Catheter infection rates ranged from 0.44 to 0.84 per 1000 catheter days, a lower than anticipated number. Mean catheter occlusion rates were lower than 7% and mean mechanical complication rates were approximately 5%. Known termination of therapy was secondary to completion of therapy (50% to 56%) or death (17.3% to 22%). CONCLUSIONS: Overall, time on HPN therapy in the United States has increased. Nutritional diagnoses are currently used to justify HPN. Catheter infection and occlusion rates, in general, are low. Termination of therapy and death are the most common reasons for HPN discontinuation. Standardization of HPN data collection is necessary to obtain a historical snapshot of the efficacy and safety of patients treated outside the hospital with nutritional support.

Predicting energy needs in obese patients.

Obesity has become an epidemic in the United States, with other western countries also reporting increases in incidence of obesity. With many associated comorbidities, it is the most common nutritional disorder facing the medical team. However, the assessment of macronutrient needs for nutrition support regimens in obese adults is controversial. This review summarizes existing research on popular predictive approaches, including the Harris-Benedict equation, kilocalories per kilogram, and the Ireton-Jones equations. Complications including special considerations for patients who have undergone bariatric surgeries and current evidence on hypocaloric regimens are also discussed.