Nutrition therapy during initiation of refeeding in underweight children and adolescent inpatients with anorexia nervosa: a systematic review of the evidence

Comparison of metabolic parameters between oral and total parenteral nutrition in children with severe eating disorders

BACKGROUND

This study investigated changes of lipid parameters in children with severe eating disorders during refeeding in order to explore the optimal timing for lipid preparation administration.

METHODS

We prospectively assessed the physical conditions of patients with eating disorders after the start of nutrition therapy. The assessments were performed at admission and at 2 and 4 weeks. Lipid metabolism was assessed based on triglyceride (TG), total cholesterol (TC), and free carnitine (FC) levels, as well as acylcarnitine/free carnitine (AC/FC) ratio.

RESULTS

A total of 18 patients were included. Of these, 12 and 6 received an oral diet (OD group) and total parenteral nutrition (TPN group), respectively. The mean body mass indexes at hospital admission were 12.8 kg/m2 in the OD group and 12.7 kg/m2 in the TPN group. At 2 weeks after the start of refeeding, TC, TG, and AC/FC levels were significantly lower in the TPN group than in the OD group. Other blood test results did not show any significant differences between the two groups.

CONCLUSIONS

Fat-free glucose-based nutrition promoted lipid metabolism over a 2-week period after the start of refeeding, suggesting that balanced energy and lipid intake are essential, even in TPN.

Comparison of metabolic parameters between oral and total parenteral nutrition in children with severe eating disorders

BACKGROUND

This study investigated changes of lipid parameters in children with severe eating disorders during refeeding in order to explore the optimal timing for lipid preparation administration.

METHODS

We prospectively assessed the physical conditions of patients with eating disorders after the start of nutrition therapy. The assessments were performed at admission and at 2 and 4 weeks. Lipid metabolism was assessed based on triglyceride (TG), total cholesterol (TC), and free carnitine (FC) levels, as well as acylcarnitine/free carnitine (AC/FC) ratio.

RESULTS

A total of 18 patients were included. Of these, 12 and 6 received an oral diet (OD group) and total parenteral nutrition (TPN group), respectively. The mean body mass indexes at hospital admission were 12.8 kg/m2 in the OD group and 12.7 kg/m2 in the TPN group. At 2 weeks after the start of refeeding, TC, TG, and AC/FC levels were significantly lower in the TPN group than in the OD group. Other blood test results did not show any significant differences between the two groups.

CONCLUSIONS

Fat-free glucose-based nutrition promoted lipid metabolism over a 2-week period after the start of refeeding, suggesting that balanced energy and lipid intake are essential, even in TPN.

Characterization of refeeding protocols for under 18 years old hospitalized patients with anorexia nervosa: A systematic review

PURPOSE

To characterize and compare, through descriptive analysis, existing refeeding protocols for under 18 years old hospitalized patients with anorexia nervosa (AN).

METHODS

This is a systematic review of PubMed, Cochrane, SciELO, Lilacs and BVS databases, without search period restriction. Studies were selected in accordance with pre-defined eligibility criteria and according to the Population, Intervention, Comparator, Outcome and Study Design (PICOS).

RESULTS

Twenty articles out of 412 found complied with PICOS eligibility criteria and were included in the final review. Most of the studies were observational or retrospective and 80% were published in the last decade. Large variability in relation to sample size, refeeding protocols and length of stay were observed between studies.

CONCLUSION

All included studies had several methodological limitations and heterogeneous designs, making it difficult to establish conclusive guidelines regarding the most adequate and effective refeeding protocol for under 18 years old hospitalized patients with AN. Prospective trials are necessary to straight compare standard refeeding protocols for this population.

Psychiatric and medical comorbidities of eating disorders: findings from a rapid review of the literature

BACKGROUND

Eating disorders (EDs) are potentially severe, complex, and life-threatening illnesses. The mortality rate of EDs is significantly elevated compared to other psychiatric conditions, primarily due to medical complications and suicide. The current rapid review aimed to summarise the literature and identify gaps in knowledge relating to any psychiatric and medical comorbidities of eating disorders.

METHODS

This paper forms part of a rapid review) series scoping the evidence base for the field of EDs, conducted to inform the Australian National Eating Disorders Research and Translation Strategy 2021-2031, funded and released by the Australian Government. ScienceDirect, PubMed and Ovid/Medline were searched for English-language studies focused on the psychiatric and medical comorbidities of EDs, published between 2009 and 2021. High-level evidence such as meta-analyses, large population studies and Randomised Control Trials were prioritised.

RESULTS

A total of 202 studies were included in this review, with 58% pertaining to psychiatric comorbidities and 42% to medical comorbidities. For EDs in general, the most prevalent psychiatric comorbidities were anxiety (up to 62%), mood (up to 54%) and substance use and post-traumatic stress disorders (similar comorbidity rates up to 27%). The review also noted associations between specific EDs and non-suicidal self-injury, personality disorders, and neurodevelopmental disorders. EDs were complicated by medical comorbidities across the neuroendocrine, skeletal, nutritional, gastrointestinal, dental, and reproductive systems. Medical comorbidities can precede, occur alongside or emerge as a complication of the ED.

CONCLUSIONS

This review provides a thorough overview of the comorbid psychiatric and medical conditions co-occurring with EDs. High psychiatric and medical comorbidity rates were observed in people with EDs, with comorbidities contributing to increased ED symptom severity, maintenance of some ED behaviours, and poorer functioning as well as treatment outcomes. Early identification and management of psychiatric and medical comorbidities in people with an ED may improve response to treatment and overall outcomes.

Five-Year Inpatient Management of Teenagers With Anorexia Nervosa: Focus on Nutritional Issues

OBJECTIVES

In patients with Anorexia Nervosa (AN) malnutrition can lead to life-long nutritional treatments. The refeeding process can combine natural feeding (NF) with specific nutritional strategies, including oral nutritional supplements (ONS) and nasogastric feeding (NGF). Aims of the present study were to assess the efficacy of hospital protocol and identify the most effective inpatient nutritional strategies for weight restoration.

METHODS

All patients hospitalized from April 2015 to April 2020 were enrolled. According to hospital protocol, NF was proposed to all patients; ONS were combined with NF if caloric intake was <70% of the requirements and NGF was added if caloric intake did not reach 30% in the first week from admission.

RESULTS

Overall, 186 patients [M = 20; median age 14 (interquartile range 1316)] were included. Nutritional issues were the main indication to admission (56.6%). A significant effect of combination treatment, with a shorter duration of hospitalization when using ONS with NGF in addition to NF was found (ß: -20.28 [95% confidence interval -34.92:-5.65], P  < 0.001). Only one patient showed a significant but limited increase of liver enzymes.

CONCLUSIONS

We provide a safe and effective standardized protocol to treat the malnutrition of teenagers with AN in an inpatient setting. Malnutrition was the most important cause of admission, and more than half of the patients admitted were severely malnourished. The combination of NF, ONS, and NGF was the most effective strategy to achieve the weight restoration; however, this result should be validated on larger series of patients treated with NGF and NF.

To Improve the Initial Inpatient Management of Adolescents Admitted with Severe Anorexia Nervosa: A Narrative Review and a Convenient Protocol

Inadequate nutritional rehabilitation of severely malnourished adolescents with Anorexia Nervosa (AN) increases the risk of medical complications. There is no consensus on best practices for inpatient nutritional rehabilitation and medical stabilization for severe AN. This study aimed to elaborate an admission protocol for adolescents with severe AN based on a comprehensive narrative review of current evidence. A Pubmed search was conducted in July 2017 and updated in August 2020, using the keywords severe AN or eating disorders (ED), management guidelines and adolescent. Relevant references cited in these guidelines were retrieved. A secondary search was conducted using AN or ED and refeeding protocol, refeeding syndrome (RS), hypophosphatemia, hypoglycemia, cardiac monitoring or cardiac complications. Evidence obtained was used to develop the admission protocol. Selective blood tests were proposed during the first three days of nutritional rehabilitation. Higher initial caloric intake is supported by evidence. Continuous nasogastric tube feeding was proposed for patients with a BMI < 12 kg/m2. We monitor hypoglycemia for 72 h. Continuous cardiac monitoring for bradycardia <30 BPM and systematic phosphate supplementation should be considered. Developing protocols is necessary to improve standardization of care. We provide an example of an inpatient admission protocol for adolescents with severe AN.

What role do dietitians have in providing nutrition care for eating disorder treatment? An integrative review

BACKGROUND

Dietitians are recognised as experts in nutrition care and essential members of multidisciplinary healthcare teams. However, the role of dietitians in caring for people with eating disorders is not well understood. The present review aimed to identify, critically appraise and synthesise the current evidence exploring the views and experiences of dietitians, other health professionals, patients and carers regarding the role of dietitians in the treatment of eating disorders.

METHODS

CINAHL, MEDLINE, Embase, Scopus and PsycINFO were searched in April 2020 and again in February 2021. Studies were included if they were original research; explored views and experiences of the role of dietitians in the treatment of eating disorders, including perceptions of patients, carers and other health professionals regarding nutrition care for eating disorders; and the full-text article was available in English. Title and abstract screening, full-text screening, quality assessment and data extraction were completed in duplicate. Quality assessment was conducted using the Mixed Methods Assessment Tool. Thematic synthesis was used for data analysis.

RESULTS

Fourteen studies met the inclusion criteria. Quantitative, qualitative and mixed-methods study designs were included. Four themes emerged inductively from the data: (i) dietitians as collaborators, educators and counsellors; (ii) dietitians individualising care and desiring a holistic approach; (iii) opportunities for dietitians to gain confidence; and (iv) experiencing nutrition care as a patient or carer.

CONCLUSIONS

This review suggests that dietitians have a varied role in eating disorder treatment but desire further training. Understanding the training needs of dietitians can identify practice gaps and opportunities to enhance clinician confidence.

Possible use of fermented foods in rehabilitation of anorexia nervosa: the gut microbiota as a modulator

Anorexia nervosa is a serious psychiatric disorder with high morbidity and mortality rate. Evidence for the optimal psychopharmacological approach to managing the disorder remains limited, with nutritional treatment, focused on weight restoration through the consumption of high energy diet, regarded as one of the fundamental steps in treatment. The human gut microbiome is increasingly recognised for its proposed role in gastrointestinal, metabolic, immune and mental health, all of which may be compromised in individuals with anorexia nervosa. Dietary intake plays an important role in shaping gut microbiota composition, whilst the use of fermented foods, foods with potential psychobiotic properties that deliver live bacteria, bacterial metabolites, prebiotics and energy, have been discussed to a lesser extent. However, fermented foods are of increasing interest due to their potential capacity to affect gut microbiota composition, provide beneficial bacterial metabolites, and confer beneficial outcomes to host health. This review provides an overview of the role of the gut microbiota in relation to the disease pathology in anorexia nervosa and especially focuses on the therapeutic potential of fermented foods, proposed here as a recommended addition to the current nutritional treatment protocols warranting further investigation.

Risk factors for a low weight gain in the early stage of adolescent anorexia nervosa inpatient treatment: findings from a pilot study

PURPOSE

Body weight restoration is a major treatment aim in juvenile inpatients with anorexia nervosa (AN) (i.e., 500-1000 g/week according to the German guidelines). Several studies suggest the early weight gain to be crucial for remission. The identification of patients at risk of a low early weight gain could enable an adequate adaptation of treatment. Thus, we aimed at detecting risk factors of a low weight gain during inpatient treatment.

METHODS

The presented work analyzes data from a pilot study in 30 female adolescent inpatients with AN (restricting subtype; age range at admission: 12.6-17.6 years). Premorbid characteristics, history of symptomatology, anthropometric data, and eating-disorder psychopathology were compared between those who gained at least an average of 500 g/week during the first 7 weeks of treatment (high weight gainers, HWG) and those who did not (low weight gainers, LWG).

RESULTS

At admission, LWG (n = 15) had a significantly higher BMI(-SDS) and scored significantly higher in the eating-disorder examination questionnaire (EDE-Q) than HWG (n = 15). A logistic regression analysis indicated both parameters to be independently associated with a low weight gain.

CONCLUSION

Higher EDE-Q scores seem to be a major risk factor for a low weight gain at the beginning of treatment. Moreover, a higher BMI(-SDS) at admission does not necessarily indicate a less severe AN symptomatic, as it was associated with a lower weight gain in our sample during the first 7 weeks of treatment. Reassessment of our results in larger studies is required to draw firm conclusions for clinical practice.

LEVEL OF EVIDENCE

Level V.

Treatment interventions for Severe and Enduring Eating Disorders: Systematic review

OBJECTIVE

Approximately 20% of people with Anorexia Nervosa (AN) and 10% with Bulimia Nervosa (BN) will eventually develop a long-standing illness. Although there is no set definition for Severe and Enduring eating Disorder (SE-ED), the common criteria relate to a long duration of the disorder and a number of unsuccessful treatment attempts. Research evidence for treatment of SE-ED remains limited, thus the objective of this systematic review was to describe different treatment interventions and their effects on SE-ED-related outcomes.

METHOD

A systematic search for quantitative treatment studies of adult participants with SE-ED was conducted in June 2019 (PROSPERO, CRD42018115802) with no restriction on eating disorder type. Altogether, 2,938 studies were included for title and abstract screening.

RESULTS

After systematic searches and article screening, 23 studies (3 randomized controlled trials, 3 open-label studies, 8 naturalistic follow-up studies, 8 case series and case studies, and 1 partially blinded pilot study) were included in the analysis and data extraction. Methodological quality of the included studies was generally low. Inpatient treatment programs (n = 5) were effective in short-term symptom reduction, but long-term results were inconsistent. Outpatient and day-hospital treatment programs (n = 5) seemed promising for symptom reduction. Drug interventions (n = 5) showed some benefits, especially as adjuvant therapies. Brain stimulation (n = 6) led to improvements in depressive symptoms. Other treatments (n = 2) produced mixed results.

DISCUSSION

This is the first systematic review to examine all of the different treatment interventions that have been studied in SE-ED. The results will inform future interventions in research and clinical practice.

Eating disorders

Eating disorders are disabling, deadly, and costly mental disorders that considerably impair physical health and disrupt psychosocial functioning. Disturbed attitudes towards weight, body shape, and eating play a key role in the origin and maintenance of eating disorders. Eating disorders have been increasing over the past 50 years and changes in the food environment have been implicated. All health-care providers should routinely enquire about eating habits as a component of overall health assessment. Six main feeding and eating disorders are now recognised in diagnostic systems: anorexia nervosa, bulimia nervosa, binge eating disorder, avoidant-restrictive food intake disorder, pica, and rumination disorder. The presentation form of eating disorders might vary for men versus women, for example. As eating disorders are under-researched, there is a great deal of uncertainty as to their pathophysiology, treatment, and management. Future challenges, emerging treatments, and outstanding research questions are addressed.

Patterns of Obesity and Overweight in the Iranian Population: Findings of STEPs 2016

Background: Obesity has become a common health problem all over the world. Benefiting from a national representative sample, the present study aimed to estimate the prevalence of overweight/obesity and the distribution of Body Mass Index (BMI) levels in the Iranian adult population, by sex, age, and geographical distribution. Methods: This was a large-scale national cross-sectional study of Non-communicable Diseases risk factor surveillance in Iran. Through a systematic random sampling cluster, 31,050 Iranian adult participants aged 18 years and over were enrolled in the study. The main research tools were used to assess three different levels of data, namely: (1) demographic, epidemiologic, and risk-related behavioral data, (2) physical measurements, and (3) lab measurements. Anthropometric measurements were taken using standard protocols and calibrated instruments. Results: In 2016, the national prevalence rates of normal weight, obesity, and overweight/obesity among Iranian adults were, 36.7% (95% CI: 36.1-37.3), 22.7% (22.2-23.2), and 59.3% (58.7-59.9), respectively. There was a significant difference between the prevalence of obesity among males [15.3% (14.7-15.9)] and females [29.8% (29.0-30.5)] (p < 0.001). The 55-64 [31.5% (30.1-33.0)] and the 18-24 [8.3% (7.3-9.4)] year-old age groups had the highest and lowest prevalence of obesity, respectively. The results show a geographical pattern at provincial level, where the level of BMI increases among populations ranging from the southeastern to the northwestern regions of the country. The highest provincial prevalence of obesity was almost 2.5-fold higher than the lowest provincial prevalence. Conclusion: We found a significant difference between the prevalence of obesity in males and females. Moreover, there was a considerable difference in the geographical pattern of the prevalence of obesity and overweight. Further evidence is warranted to promote strategies and interventions related to prevention and control of factors that are associated with weight gain.

Nutritional Management and Outcomes in Malnourished Medical Inpatients: Anorexia Nervosa

BACKGROUND

Anorexia Nervosa (AN) is a psychiatric disorder characterised by a physical and psychosocial deterioration due to an altered pattern on the intake and weight control. The severity of the disease is based on the degree of malnutrition. The objective of this article is to review the scientific evidence of the refeeding process of malnourished inpatients with AN; focusing on the clinical outcome.

METHODS

We conducted an extensive search in Medline and Cochrane; on April 22; 2019; using different search terms. After screening all abstracts; we identified 19 papers that corresponded to our inclusion criteria.

RESULTS

The article focuses on evidence on the characteristics of malnutrition and changes in body composition; energy and protein requirements; nutritional treatment; physical activity programmes; models of organisation of the nutritional treatment and nutritional support related outcomes in AN patients.

CONCLUSION

Evidence-based standards for clinical practice with clear outcomes are needed to improve the management of these patients and standardise the healthcare process.

Predictors of Weight Restoration in a Day-Treatment Program that Supports Family-Based Treatment for Adolescents with Anorexia Nervosa

Family-Based Treatment (FBT) is considered a first-line treatment for adolescents with eating disorders. The traditional outpatient model of FBT may not, however, be appropriate for adolescents requiring more intensive treatment due to severe medical complications or insufficient progress in traditional outpatient FBT. In response, efforts have been made to incorporate FBT into higher levels of care, such as day-treatment programs (DTPs), for families who need additional support. Little is known about the factors that predict weight restoration for DTPs intended to support FBT. The current study examined the ability of specific adolescent and caregiver variables to predict weight restoration at discharge for adolescents with anorexia nervosa (AN) enrolled in a skills-based DTP that supports FBT. Participants were 87 adolescents diagnosed with AN and their caregivers (N = 74). Body Mass Index (BMI) at baseline, percentage of Expected Body Weight (%EBW) gain within the first 4 weeks, and caregiver empowerment level at baseline were found to significantly predict weight restoration. Higher BMI at baseline and higher %EBW gained in the first 4 weeks of treatment were predictive of weight restoration, whereas lower caregiver empowerment at baseline was predictive of weight restoration. Additionally, the rate of weight gain is reported for this DTP grounded in FBT philosophy.

Medication in AN: A Multidisciplinary Overview of Meta-Analyses and Systematic Reviews

Drugs are widely prescribed for anorexia nervosa in the nutritional, somatic, and psychiatric fields. There is no systematic overview in the literature, which simultaneously covers all these types of medication. The main aims of this paper are (1) to offer clinicians an overview of the evidence-based data in the literature concerning the medication (psychotropic drugs and medication for somatic and nutritional complications) in the field of anorexia nervosa since the 1960s, (2) to draw practical conclusions for everyday practise and future research. Searches were performed on three online databases, namely MEDLINE, Epistemonikos and Web of Science. Papers published between September 2011 and January 2019 were considered. Evidence-based data were identified from meta-analyses, if there were none, from systematic reviews, and otherwise from trials (randomized or if not open-label studies). Evidence-based results are scarce. No psychotropic medication has proved efficacious in terms of weight gain, and there is only weak data suggesting it can alleviate certain psychiatric symptoms. Concerning nutritional and somatic conditions, while there is no specific, approved medication, it seems essential not to neglect the interest of innovative therapeutic strategies to treat multi-organic comorbidities. In the final section we discuss how to use these medications in the overall approach to the treatment of anorexia nervosa.

Community-based mealtime management for adolescents with anorexia nervosa: A qualitative study of clinicians' perspectives and experiences

BACKGROUND AND OBJECTIVE

Community-based mealtime management is an intensive, focused, and time-limited intervention for young people with an eating disorder which aims to support refeeding at home and thus prevent hospital admission. Little is known about clinicians' experiences of delivering this intervention. We aimed to explore mental health clinicians' perspectives on community mealtime management with children and adolescents diagnosed with an eating disorder.

METHODS

A qualitative design was used. Semistructured interviews were conducted with six mental health clinicians with experience of delivering or referral for the intervention. Interview recordings were transcribed and subjected to a thematic analysis.

RESULTS

Analysis resulted in identification of three themes: (a) technical aspects of mealtime management, (b) emotional aspects of mealtime management, and (c) a mixed zone of uncertainty around the use of dietary supplements. Overall, participants believed mealtime management to be a valuable intervention.

CONCLUSIONS

Findings highlight the perceived need for more formal training for clinicians undertaking mealtime management, and the positive impact this could potentially have on their practice. Clinicians' emotion regulation during intervention delivery was perceived to be important. There was a perceived need for greater adherence to protocols but an acceptance that flexibility was also required.

Enteral Nutrition via Nasogastric Tube for Refeeding Patients With Anorexia Nervosa: A Systematic Review

Weight restoration is an important first step in treating patients with anorexia nervosa (AN), because it is essential for medical stabilization and reversal of long-term complications. Tube feeding may help facilitate weight restoration, but its role in treatment remains unclear. This study aimed to review the literature describing the efficacy, safety, tolerance, and long-term effects of nasogastric (NG) refeeding for patients with AN. Four electronic databases were systematically searched through May 2018. Boolean search terms included "anorexia nervosa," "refeeding," and "nasogastric tube feeding." Ten studies were eligible for inclusion: 8 retrospective chart reviews, 1 prospective cohort, and 1 randomized controlled trial. Nine of the studies were performed in-hospital. In 8 studies, NG nutrition resulted in an average rate of weight gain exceeding 1 kg/wk. In 4 of 5 studies including an oral-only control group, mean weekly weight gain and caloric intake were significantly higher in tube-fed patients. Six studies provided prophylactic phosphate supplementation, all with <1% occurrence rate of refeeding hypophosphatemia. Seven studies reported on other physiological disturbances, 6 evaluated medical and gastrointestinal side effects, 3 considered psychological outcomes, and 4 assessed patients postdischarge. Results indicated that NG feeding was not associated with an increased risk for adverse outcomes. Overall, in these studies, NG nutrition was considered safe and well tolerated, and effectively increased caloric intake and rate of weight gain in patients with AN. However, results are limited by weaknesses in study designs, and more rigorous methods are needed for development of evidence-based, standardized refeeding protocols.

Treatment of eating disorders in child and adolescent psychiatry

PURPOSE OF REVIEW

Recent research on the multimodal treatment of eating disorders in child and adolescent psychiatry has yielded a significant increase in randomized controlled trials and systematic reviews. This review aims to present relevant findings published during the last 2 years related to medical and psychological treatment of anorexia nervosa, bulimia nervosa and avoidant/restrictive food intake disorder (ARFID).

RECENT FINDINGS

For anorexia nervosa, recent reports described the efficacy of different treatment settings, lengths of hospital stay and high vs. low-calorie refeeding programmes. For both anorexia and bulimia nervosa, a number of randomized controlled trials comparing individual and family-oriented treatment approaches were published. For the newly defined ARFID, only very preliminary results on possible treatment approaches implying a multidisciplinary treatment programme were obtained.

SUMMARY

Although there is some evidence of the effectiveness of new child and adolescent psychiatric treatment approaches to eating disorders, the relapse rate remains very high, and there is an urgent need for ongoing intensive research.

[The inpatient treatment of patients with anorexia nervosa in German clinics]

Objective

The medium- and long-term effects and side effects of inpatient treatment of patients with anorexia nervosa is still a matter of debate. The German S3-guidelines underline the importance of providing specialized and competent treatment. In this article we focus on the inpatient service structure in German child and adolescent psychiatric clinics with regard to their diagnostic and therapeutic concepts.

Methods

A self-devised questionnaire was sent to 163 German child and adolescent psychiatric clinics. The questionnaire focused on the characteristics of the respective clinic as well as its diagnostic and therapeutic strategies.

Results

All clinics with an inpatient service for patients with anorexia nervosa (N = 84) provide single-therapy, family-based interventions and psychoeducation. A target weight is defined in nearly all clinics, and the mean intended weight gain per week is 486 g (range: 200 g to 700 g/week; SD = 117). Certain diagnostic tests and therapeutic interventions are used heterogeneously.

Conclusions

This is the first study investigating the inpatient service structure for patients with anorexia nervosa in German clinics. Despite the provision of guideline-based therapy in all clinics, heterogeneous approaches were apparent with respect to specific diagnostic and therapeutic concepts.

Hypertransaminasemia and hypophosphoremia in an adolescent with anorexia nervosa: an event to watch for

Background

Case Presentation

Conclusions

Leptin levels in patients with anorexia nervosa following day/inpatient treatment do not predict weight 1 year post-referral

Elevated serum leptin levels following rapid therapeutically induced weight gain in anorexia nervosa (AN) patients are discussed as a potential biomarker for renewed weight loss as a result of leptin-related suppression of appetite and increased energy expenditure. This study aims to analyze the predictive value of leptin levels at discharge as well as the average rate of weight gain during inpatient or day patient treatment for body weight at 1-year follow-up. 121 patients were recruited from the longitudinal Anorexia Nervosa Day patient versus Inpatient (ANDI) trial. Serum leptin levels were analyzed at referral and discharge. A multiple linear regression analysis to predict age-adjusted body mass index (BMI-SDS) at 1-year follow-up was performed. Leptin levels, the average rate of weight gain, premorbid BMI-SDS, BMI-SDS at referral, age and illness duration were included as independent variables. Neither leptin levels at discharge nor rate of weight gain significantly predicted BMI-SDS at 1-year follow-up explaining only 1.8 and 0.4 % of the variance, respectively. According to our results, leptin levels at discharge and average rate of weight gain did not exhibit any value in predicting weight at 1-year follow-up in our longitudinal observation study of adolescent patients with AN. Thus, research should focus on other potential factors to predict weight at follow-up. As elevated leptin levels and average rate of weight gain did not pose a risk for reduced weight, we found no evidence for the beneficial effect of slow refeeding in patients with acute AN.

Higher Caloric Refeeding Is Safe in Hospitalised Adolescent Patients with Restrictive Eating Disorders

Introduction. This study examines weight gain and assesses complications associated with refeeding hospitalised adolescents with restrictive eating disorders (EDs) prescribed initial calories above current recommendations. Methods. Patients admitted to an adolescent ED structured “rapid refeeding” program for >48 hours and receiving ≥2400 kcal/day were included in a 3-year retrospective chart review. Results. The mean (SD) age of the 162 adolescents was 16.7 years (0.9), admission % median BMI was 80.1% (10.2), and discharge % median BMI was 93.1% (7.0). The mean (SD) starting caloric intake was 2611.7 kcal/day (261.5) equating to 58.4 kcal/kg (10.2). Most patients (92.6%) were treated with nasogastric tube feeding. The mean (SD) length of stay was 3.6 weeks (1.9), and average weekly weight gain was 2.1 kg (0.8). No patients developed cardiac signs of RFS or delirium; complications included 4% peripheral oedema, 1% hypophosphatemia (<0.75 mmol/L), 7% hypomagnesaemia (<0.70 mmol/L), and 2% hypokalaemia (<3.2 mmol/L). Caloric prescription on admission was associated with developing oedema (95% CI 1.001 to 1.047; p = 0.039). No statistical significance was found between electrolytes and calories provided during refeeding. Conclusion. A rapid refeeding protocol with the inclusion of phosphate supplementation can safely achieve rapid weight restoration without increased complications associated with refeeding syndrome.

Speaking of That: Terms to Avoid or Reconsider in the Eating Disorders Field

Inspired by an article on 50 terms that, in the interest of clarity in scientific reasoning and communication in psychology, psychiatry, and allied fields, "should be avoided or at most be used sparingly and only with explicit caveats,"(1) we propose a list of terms to avoid or think twice about before using when writing for the International Journal of Eating Disorders (IJED). Drawing upon our experience as reviewers or editors for the IJED, we generated an abridged list of such terms. For each term, we explain why it made our list and what alternatives we recommend. We hope that our list will contribute to improved clarity in scientific thinking about eating disorders, and that it will stimulate discussion of terms that may need to be reconsidered in our field's vocabulary to ensure the use of language that is respectful and sensitive to individuals who experience an eating disorder.

Description of an intensive nutrition therapy in hospitalized adolescents with anorexia nervosa

OBJECTIVE

To describe an intensive nutrition therapy for hospitalized adolescents and young adults with anorexia nervosa (AN) in terms of body weight, body composition, energy balance and food related anxiety.

METHOD

Twenty-six young females, 16-24years of age, with AN were invited to participate at admission to a specialized eating disorder unit in Göteborg, Sweden. Intensive nutrition therapy comprised 12weeks on a structured meal plan. Six meals were served daily, in combination with high-energy liquid nutritional supplements from start. Energy and nutrient intakes, energy expenditure, body composition and food related anxiety were measured during the study. A 3-month follow-up of body weight and food related anxiety was conducted.

RESULTS

Twenty-one patients participated. The total daily energy intake was, during the first week of treatment, (mean±SD) 3264±196kcal (74kcal/kg), and decreased gradually during treatment to 2622±331kcal (49kcal/kg). Total daily energy expenditure was initially 1568±149kcal and increased gradually to 2034±194kcal. Patients gained on average 9.8±2.1kg and body mass index increased from 15.5±0.9 to 19.0±0.9kg/m(2). Body fat increased from 13±6% to 26±6%. Fat free mass remained unchanged, but skeletal muscle mass increased from 16.7±2.0 to 17.6±2.4kg, p=0.009. Patients' food related anxiety decreased significantly during treatment and was still unchanged 3months later.

CONCLUSION

The presented intensive nutrition therapy with initially high energy and nutrient intakes produced substantial weight gain, increased fat and muscle mass and decreased food related anxiety in AN patients, without any clinical side effects.

Risk factors for refeeding hypophosphatemia in Japanese inpatients with anorexia nervosa

OBJECTIVE

Refeeding in patients with anorexia nervosa (AN) is associated with a risk of refeeding syndrome, which is a disruption in metabolism with a variety of features including hypophosphatemia. We evaluated the risk factors for refeeding hypophosphatemia (RH) during nutritional replenishment in Japanese patients with AN.

METHODS

We retrospectively examined clinical data for 99 female inpatients (mean age 30.9 ± 10.7 years; range, 9 - 56 years).

RESULTS

RH (phosphate < 2.3 mg/dL) occurred within 4.8 ± 3.7 days of hospital admission and was still observed at 28 days after admission in 21 of the 99 cases (21.2%). Oral or intravenous phosphate was given to some patients to treat or prevent RH. Patients with RH had a significantly lower body mass index, were older, and had higher blood urea nitrogen than those without RH. Severe complications associated with RH were recorded in only one patient who showed convulsions and disturbed consciousness at Day 3 when her serum phosphate level was 1.6 mg/dL.

CONCLUSIONS

The significant risk factors for RH that we identified were lower body mass index, older age, and higher blood urea nitrogen at admission. No significant difference in total energy intake was seen between the RH and no RH groups, suggesting that RH may not be entirely correlated with energy intake. Precisely predicting and preventing RH is difficult, even in patients with AN who are given phosphate for prophylaxis. Thus, serum phosphate levels should be monitored for more than 5 days after admission.

Refeeding Low Weight Hospitalized Adolescents With Anorexia Nervosa: A Multicenter Randomized Controlled Trial

BACKGROUND

Refeeding patients with anorexia nervosa (AN) is associated with high morbidity and mortality. A lack of evidence from interventional studies has hindered refeeding practice and led to worldwide disparities in management recommendations. In the first randomized controlled trial in this area, we tested the hypothesis that refeeding adolescents with AN with a higher energy intake than what many guidelines recommend improved anthropometric outcomes without adversely affecting cardiac and biochemical markers associated with refeeding.

MATERIALS AND METHODS

Participants aged 10-16 years with a body mass index (BMI) <78% of the median (mBMI) for age and sex were recruited from 6 UK hospitals and randomly allocated to start refeeding at 1200 kcal/d (n = 18, intervention) or 500 kcal/d (n = 18, control).

RESULTS

Compared with controls, adolescents randomized to high energy intake had greater weight gain (mean difference between groups after 10 days of refeeding, -1.2% mBMI; 95% confidence interval, -2.4% to 0.0%; P = .05), but randomized groups did not differ statistically in QTc interval and other outcomes. The nadir in postrefeeding phosphate concentration was significantly related to percentage mBMI at the start of refeeding (baseline; P = .04) and baseline white blood cell count (P = .005) but not to baseline energy intake (P = .08).

CONCLUSIONS

Refeeding adolescents with AN with a higher energy intake was associated with greater weight gain but without an increase in complications associated with refeeding when compared with a more cautious refeeding protocol-thus challenging current refeeding recommendations.

[Quality management in weight restitution in Anorexia nervosa--pathophysiology, evidence-based practice and prevention of the refeeding syndrome]

During refeeding syndrome-a well-known and dreaded complication of weight-restauration in anorexia nervosa-a shift of electrolytes and fluid can occur in malnourished patients and might therefore lead to-potentially fatal-cardiovascular, respiratory and neurological symptoms. Causes of this are metabolic and hormonal changes during re-establishment of a carbohydrate-rich diet. This syndrome is most commonly associated with hypophosphatemia, which can however be accompanied by other chemical laboratory abnormalities. Standardized guidelines for the prevention and management of the refeeding syndrome have not yet been established. In case and cohort studies different low- and high-calorie diet protocols led to comparable results with similar complication rates. A focus should be placed on prevention of serious complications by careful monitoring. The pathophysiology, the main constituents in the development of the refeeding syndrome, recommendations for risk assessment and treatment, and current evidence are discussed.

Predictors of hypophosphatemia during refeeding of patients with severe anorexia nervosa

OBJECTIVE

Hypophosphatemia of refeeding is one of the most dangerous complications seen during the treatment of patients with anorexia nervosa. Although easily detectable and treatable, hypophosphatemia is under-recognized as a complication of refeeding. Specific risk factors for the development of hypophosphatemia are likely to exist among patients with severe anorexia nervosa. The purpose of this study was to identify clinically useful markers that may predict the development of or protection from hypophosphatemia during refeeding.

METHODS

We conducted a retrospective case-control study of 123 patients with severe anorexia nervosa admitted for medical stabilization at the ACUTE Center for Eating Disorders between October 1, 2008 and December 31, 2013. Risk factors for refeeding hypophosphatemia were determined by multivariate logistic regression from clinical parameters and laboratory values measured at the time of admission.

RESULTS

The prevalence of hypophosphatemia was 33.3% (41 of 123 patients). Higher hemoglobin was the only risk factor associated with a higher odds of developing hypophosphatemia (adjusted odds ratio [aOR], 1.56 [95% confidence interval [CI], 1.12-2.18]). Statistically significant protective factors against the development of hypophosphatemia were observed with higher body mass index (aOR, 0.54 [95% CI, 0.39-0.75]), higher serum potassium (aOR, 0.29 [95% CI, 0.14-0.62]), and higher serum prealbumin (aOR, 0.91 [95% CI, 0.84-0.99]).

DISCUSSION

Four independent factors associated with refeeding hypophosphatemia were identified. Identification of findings which correlate with hypophosphatemia, or the lack thereof, has the potential to facilitate appropriate triage of patients with anorexia nervosa for closer monitoring during refeeding.

ESCAP Expert Paper: New developments in the diagnosis and treatment of adolescent anorexia nervosa--a European perspective

Anorexia nervosa is a potentially life-threatening disorder with a typical onset in adolescence and high rates of medical complications and psychiatric comorbidity. This article summarizes issues relating to classification in DSM-5 and presents a narrative review of key evidence-based medical and behavioral interventions for adolescent AN and subthreshold restricting eating disorders, mainly, but not exclusively published between 2012 and 2014. In addition, it systematically compares the clinical guidelines of four European countries (Germany, Spain, The Netherlands, and United Kingdom) and outlines common clinical practice, in relation to treatment settings, nutritional rehabilitation, family-oriented and individual psychotherapy, and psychopharmacological treatment. With the exception of family-based treatment, which is mainly evaluated and practiced in Anglo-American countries, the evidence base is weak, especially for medical interventions such as refeeding and pharmacological intervention. There is a need for common European research efforts, to improve the available evidence base and resulting clinical guidance.

Outcomes of a rapid refeeding protocol in Adolescent Anorexia Nervosa

BACKGROUND

The impact of severe malnutrition and medical instability in adolescent Anorexia Nervosa (AN) on immediate health and long-term development underscores the need for safe and efficient methods of refeeding. Current refeeding guidelines in AN advocate low initial caloric intake with slow increases in energy intake to avoid refeeding syndrome. This study demonstrates the potential for more rapid refeeding to promote initial weight recovery and correct medical instability in adolescent AN.

METHODS

Seventy-eight adolescents with AN (12-18 years), hospitalised in two specialist paediatric eating disorder units, for medical instability (bradycardia, hypotension, hypothermia, orthostatic instability and/or cardiac arrhythmia) were followed during a 2.5 week admission. Patients were refed using a standardised protocol commencing with 24-72 hours of continuous nasogastric feeds (ceased with daytime medical stability) and routine oral phosphate supplementation, followed by nocturnal feeds and a meal plan of 1200-2400 kcal/day aiming for a total caloric intake of 2400-3000 kcal/day. Along with indicators of medical stability, weight, phosphate and glucose levels were recorded.

RESULTS

All patients gained weight in week one (M = 2.79 kg, SD = 1.27 kg) and at subsequent measurement points with an average gain of 5.12 kg (SD = 2.96) at 2.5 weeks. No patient developed hypophosphatemia, hypoglycaemia, or stigmata of the refeeding syndrome.

CONCLUSIONS

The refeeding protocol resulted in immediate weight gain and was well tolerated with no indicators of refeeding syndrome. There were no significant differences in outcomes between the treatment sites, suggesting the protocol is replicable.

TRIAL REGISTRATION

Australian Clinical Trials Register number: ACTRN012607000009415.