Labeling and defining severe and enduring anorexia nervosa: A systematic review and critical analysis

"I don't know how, if, it's ever going to end": narratives of caring for someone with an enduring eating disorder

BACKGROUND

Families and carers are pivotal in supporting loved ones experiencing eating disorders. This role can bring immense distress and burden, yet the experience of caring for someone with an enduring eating disorder has had minimal research focus. Thus, the purpose of this study is to give voice to carers empowering their stories to increase awareness and understanding, which could inform support to carers and consequently people with a lived and/or living experience of eating disorders.

METHODS

Semi-structured interviews were conducted with 9 carers supporting individuals who had been experiencing an eating disorder for 7 or more years. Data were collected and analysed using narrative inquiry approach.

RESULTS

Carers' narratives revealed feelings of guilt and personal failure; a profound sense of disillusion with current treatment approaches; and immense grief and anguish. As they negotiated a tenuous relationship with hope and the uncertainty of their loved one's future, carers spoke to a complex myriad of feelings of acceptance, letting go, and forging on.

CONCLUSION

Carers deserve to have their voices heard where they are too often silenced. Their narratives provide an urgent call for transformation in our treatments for eating disorders and further involvement of carers within the treatment journey, and their lived experience perspectives have great potential to guide this endeavour.

LEVEL OF EVIDENCE

Level V, qualitative interviews.

Clinical care for severe and persistent eating disorders in pediatric populations: Perspectives of health professionals

OBJECTIVE

Models of treatment for adults with severe and enduring eating disorders focus on harm reduction and improving quality of life. However, there is a notable gap in the pediatric literature in this area. The current study set out to assess the perspectives of health professionals regarding clinical care for young people (e.g., ages 10-25 years) with severe and enduring eating disorders, and to explore perceptions about appropriate treatment options for these presentations.

METHODS

Health professionals were invited to complete a two-stage online survey about their experiences with clinical care for pediatric eating disorders through Canadian and Australian professional eating disorder networks. Survey 1 included questions about their experiences in supporting individuals with severe and enduring presentations. Participants who completed Survey 2 reviewed clinical vignettes and shared their perspectives about treatment recommendations and models of care, including for a severe and enduring presentation.

RESULTS

A total of 85 clinicians responded to questions on Survey 1 about severe and enduring eating disorder presentations. A portion of these respondents (n = 25) also participated in Survey 2. The majority of respondents to Survey 1 reported providing clinical care for pediatric severe and enduring eating disorder presentations. Amongst respondents to Survey 2, there was low consensus amongst respondents for the clinical care that would be most appropriate for young people with a severe and enduring eating disorder presentation. Numerous challenges in models of care for severe and enduring presentations in pediatric settings were raised in responses on Survey 2, with clinicians sharing their awareness of models focusing on quality of life, while also raising concerns about the appropriateness of these models for young people.

CONCLUSIONS

The preliminary results of this study demonstrate that the majority of clinicians report that they have provided care to young people with severe and enduring presentations. There is a clear need for establishing guidance for clinicians working in pediatric eating disorder settings around models of care focused on quality of life. Engagement with interested parties, including those with lived experience, can clarify the development of terminology and clinical pathways for severe and enduring presentations of pediatric eating disorders.

Ethical implications of defining longstanding anorexia nervosa

The label severe and enduring anorexia nervosa (SE-AN) is widely used in the literature on longstanding anorexia nervosa (AN). However, the process of constructing the criteria and the use of the label SE-AN has ethical implications that have not been taken into account. Through combining existing literature and lived experience perspective, this paper addresses to what extent the current criteria do and do not reflect the lived experience. Arguments are presented on why the process of constructing the criteria for SE-AN and the application of the label can be both identified as, and give rise to, epistemic injustice. Epistemic injustice is an injustice that is done to a person as an individual with the capacity of acquiring and sharing knowledge. This type of injustice can occur at any stage of an interaction between people in which knowledge is shared with one another. The paper concludes by giving suggestions on how to pursue epistemic justice in the process of defining longstanding AN.

Discordant conceptualisations of eating disorder recovery and their influence on the construct of terminality

Eating disorders (EDs) are complex, multifaceted conditions that significantly impact quality-of-life, often co-occur with multiple medical and psychiatric diagnoses, and are associated with a high risk of medical sequelae and mortality. Fortunately, many people recover even after decades of illness, although there are different conceptualisations of recovery and understandings of how recovery is experienced. Differences in these conceptualisations influence categorisations of ED experiences (e.g., longstanding vs. short-duration EDs), prognoses, recommended treatment pathways, and research into treatment outcomes. Within recent years, the proposal of a 'terminal' illness stage for a subset of individuals with anorexia nervosa and arguments for the prescription of end-of-life pathways for such individuals has ignited debate. Semantic choices are influential in ED care, and it is critical to consider how conceptualisations of illness and recovery and power dynamics influence outcomes and the ED 'staging' discourse. Conceptually, 'terminality' interrelates with understandings of recovery, efficacy of available treatments, iatrogenic harm, and complex co-occurring diagnoses, as well as the functions of an individual's eating disorder, and the personal and symbolic meanings an individual may hold regarding suffering, self-starvation, death, health and life. Our authorship represents a wide range of lived and living experiences of EDs, treatment, and recovery, ranging from longstanding and severe EDs that may meet descriptors of a 'terminal' ED to a variety of definitions of 'recovery'. Our experiences have given rise to a shared motivation to analyse how existing discourses of terminality and recovery, as found in existing research literature and policy, may shape the conceptualisations, beliefs, and actions of individuals with EDs and the healthcare systems that seek to serve them.

Care pathways for longstanding eating disorders must offer paths to recovery, not managed decline

Eating disorders are historically underserved in healthcare, but are increasingly prevalent and recognised for their high costs regarding mortality, quality of life and the economy. Those with longstanding eating disorders are commonly labelled 'severe and enduring' (SEED), which has been challenged for its conceptual vagueness and potential to discourage patients. Attempts to define individuals from this cohort as having 'terminal' illness have also gained traction in recent years. This paper is grounded in lived/living experience and relevant research. It challenges the logical coherence and utility of SEED, arguing that the word 'enduring' unhelpfully situates intractability of longstanding illness within patients themselves and the nature of their illness. This risks a sense of inevitability and overlooks the important role of contextual factors such as lacking resources and insufficient evidence for withholding active treatment. Recommendations suggest approaches to dismantling unhelpful binaries between early intervention and intensive support, recovery and decline.

Direct and indirect effects of psychological well-being and therapeutic alliance on therapy outcome in eating disorders

Introduction

Outcome research in eating disorders (EDs) is commonly focused on psychopathological dysfunction. However, Ryff's model of psychological well-being (PWB) has shown promising-yet preliminary-results with ED patients. Additionally, despite substantial evidence highlighting the association between the therapeutic alliance and treatment outcome, findings in ED samples remain unclear. The present study aimed at exploring the direct effect of PWB dimensions and the early therapeutic alliance on ED patients' individual treatment responses, as well as the mediating role played by the early therapeutic alliance in the relationship between PWB dimensions and overall pre-post symptom change.

Methods

A sample of N = 165 ED patients assigned female at birth, who were receiving treatment in a residential program, completed the Psychological Well-Being Scale at treatment intake and the Working Alliance Inventory after the first four psychotherapy sessions. Patients also completed the Outcome Questionnaire-45.2 at the same time point and during the week prior to discharge.

Results

The PWB dimensions of autonomy, positive relations, and self-acceptance were associated with clinically significant change, while the dimensions of personal growth and self-acceptance were associated with reliable change. The early therapeutic alliance showed both direct and indirect effects on therapy outcome, predicting clinically significant and reliable symptom reduction. It also emerged as a significant mediator in the relationship between all PWB dimensions and overall symptomatic change.

Conclusion

The identification of individual, adaptive characteristics in ED patients that might influence their development of an early therapeutic alliance may help therapists to predict relationship ruptures and tailor their interventions to enhance treatment effectiveness.

Inclusion of the severe and enduring anorexia nervosa phenotype in genetics research: a scoping review

BACKGROUND

Anorexia nervosa has one of the highest mortality rates of all mental illnesses. For those who survive, less than 70% fully recover, with many going on to develop a more severe and enduring phenotype. Research now suggests that genetics plays a role in the development and persistence of anorexia nervosa. Inclusion of participants with more severe and enduring illness in genetics studies of anorexia nervosa is critical.

OBJECTIVE

The primary goal of this review was to assess the inclusion of participants meeting the criteria for the severe enduring anorexia nervosa phenotype in genetics research by (1) identifying the most widely used defining criteria for severe enduring anorexia nervosa and (2) performing a review of the genetics literature to assess the inclusion of participants meeting the identified criteria.

METHODS

Searches of the genetics literature from 2012 to 2023 were performed in the PubMed, PsycINFO, and Web of Science databases. Publications were selected per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). The criteria used to define the severe and enduring anorexia nervosa phenotype were derived by how often they were used in the literature since 2017. The publications identified through the literature search were then assessed for inclusion of participants meeting these criteria.

RESULTS

most prevalent criteria used to define severe enduring anorexia nervosa in the literature were an illness duration of ≥ 7 years, lack of positive response to at least two previous evidence-based treatments, a body mass index meeting the Diagnostic and Statistical Manual of Mental Disorders-5 for extreme anorexia nervosa, and an assessment of psychological and/or behavioral severity indicating a significant impact on quality of life. There was a lack of consistent identification and inclusion of those meeting the criteria for severe enduring anorexia nervosa in the genetics literature.

DISCUSSION

This lack of consistent identification and inclusion of patients with severe enduring anorexia nervosa in genetics research has the potential to hamper the isolation of risk loci and the development of new, more effective treatment options for patients with anorexia nervosa.

Severe enduring anorexia nervosa (SE-AN) treatment options and their effectiveness: a review of literature

INTRODUCTION

 For nearly 20% of patients diagnosed with Anorexia Nervosa (AN), the eating disorder (ED) is prolonged and becomes long-lasting. It has been reported that patients diagnosed with Severe Enduring Anorexia Nervosa (SE-AN) have worse ED symptoms, higher rates of lifetime hospitalization, and lower psychosocial well-being compared to patients with shorter disease duration.

OBJECTIVES

 This review aims to describe the treatments proposed to date and their effectiveness on SE-AN-related outcomes.

METHODS

 We conducted a PubMed search for studies addressing the issue of treatment approach to SE-AN adults, that were published between 2003 and 2023, peer-reviewed, written in the English language, and available in full-text. Next, we inductively created relevant macro-themes by synthesizing the data from the included articles.

RESULTS

 Of 251 PubMed studies, 25 articles were considered for data extraction, all published between 2003 and 2022. We identified three macro-themes. The first macro-theme, "Psychotherapy", mostly takes into consideration treatment effectiveness of cognitive behavioral therapy (CBT). Various reports determined its greater effectiveness compared to Specialist Supportive Clinical Management (SSCM), and one study proved that outpatient CBT is a valid alternative to hospitalization. The second one involves "Pharmacological Treatments". Research on dronabinol, a synthetic orexigenic cannabinoid, antipsychotics (in particular, olanzapine and haloperidol), and ketamine showed some mixed results regarding the often-complementary areas of weight gain and improvement in ED-related symptoms. Regarding the third macro-theme, "Brain Stimulation Therapies," such as Repetitive Transcranial Magnetic Stimulation (rTMS) and Deep Brain Stimulation (DBS), we found promising results in improving ED-related psychological traits (such as mood and anxiety), affective regulation, and quality of life. However, we have observed divergent results regarding outcome measures such as BMI and weight gain.

CONCLUSIONS

 SE-AN patients are predicted to encounter both medical complications and psychological distress of increasing severity that will inevitably affect their quality of life; to our knowledge, research evidence on treatment options for SE-AN remains limited, and the methodological quality of studies is generally low. These findings denote the need to focus future research efforts on effective treatment strategies specific to long-lasting EDs.

Specialist psychotherapy with emotion for anorexia in Kent and Sussex: An intervention development and non-randomised single arm feasibility trial

OBJECTIVE

Anorexia nervosa (AN) is a serious eating disorder treated using psychological interventions, yet outcomes remain limited. Emotional difficulties are recognised as a treatment target. This research programme developed and evaluated feasibility of an emotion-focused therapy for adults with AN.

METHODS

Phase One intervention development utilised 'intervention mapping'. Qualitative research drew on lived experience highlighting objectives for change. Empirical evidence was synthesised into hypotheses of core emotional difficulties and an associated model of change. Relevant psychotherapeutic theory-based change methods were integrated to form the Specialist Psychotherapy with Emotion for Anorexia in Kent and Sussex (SPEAKS) intervention, guidebook and clinician training package. Phase Two tested SPEAKS in a single-arm, multisite feasibility trial across two specialist services, utilising prespecified progression criteria, and embedded process evaluation.

RESULTS

SPEAKS was 9-12 months (40 sessions) of weekly individual psychotherapy, drawing on a range of psychotherapeutic modalities, predominantly Emotion Focused Therapy and Schema Therapy. Forty-six participants consented to feasibility trial participation; 42 entered the trial and 34 completed. Thirteen of 16 feasibility criteria were met at green level and three at amber, highlighting areas for improving model adherence.

CONCLUSIONS

A randomised controlled trial is indicated. Therapist training and guidebook adjustments to improve model adherence are suggested.

"Ordinary days would be extraordinary": The lived experiences of severe and enduring anorexia nervosa

OBJECTIVE

Approximately 25% of individuals with anorexia nervosa (AN) experience a chronic form of the disorder, referred to as severe and enduring anorexia nervosa (SE-AN). Although the classification of SE-AN remains preliminary, there have been increasing calls for a harm reduction-based, collaborative treatment model for these patients. To provide such care for patients with SE-AN, it is critical to listen to and learn from their lived experiences.

METHOD

Patients (N = 17) admitted to an inpatient eating disorders program who met initial criteria for SE-AN completed semi-structured interviews about the course of their illness and prior treatment episodes. Interviews were audio recorded and transcribed. Data were analyzed using an inductive, reflexive approach to thematic analysis that examined common themes within and across interviews.

RESULTS

Three themes were identified focused on (1) the all-encompassing nature of SE-AN, (2) treatment experiences, and (3) living with chronic illness. Within these themes, there were subthemes. Overall, individuals noted clear insight about their condition, both negative and positive experiences with previous treatment, and hope for better quality of life despite their illness.

DISCUSSION

Individuals with SE-AN describe their illness as a chronic condition and hope for a harm reduction-based treatment. Future work, including the lived experiences of individuals with SE-AN, is important to build our understanding of the classification and clinical characteristics of SE-AN and to develop treatment approaches that may best serve these individuals.

PUBLIC SIGNIFICANCE

Many people with anorexia nervosa do not achieve a full recovery despite repeated treatment episodes throughout their lifespan. Understanding the lived experiences of individuals with SE-AN may help to inform future treatment development efforts that could improve eating disorder and quality of life outcomes for these patients.

Novel treatments for anorexia nervosa: Insights from neuroplasticity research

OBJECTIVE

Treatment for anorexia nervosa (AN) remains challenging; there are no approved psychopharmacological interventions and psychotherapeutic strategies have variable efficacy. The investigation of evidence-based treatments has so far been compounded by an underdeveloped understanding into the neurobiological changes associated with the acute stages of AN. There is converging evidence of deficiencies in neuroplasticity in AN.

METHOD

This paper provides an overview of neuroimaging, neuropsychological, molecular and qualitative findings relating to neuroplasticity in AN, translating these findings to the identification of novel biological and psychotherapeutic strategies.

RESULTS

Novel psychopharmacological approaches that may ameliorate deficiencies in neuroplasticity include medications such as ketamine, psilocybin and human recombinant leptin. Anti-inflammatory medications and brain-derived neurotrophic factor mimetics may emerge as potential treatments following further research. Psychotherapeutic strategies that may target neuroplastic deficiencies, as well as having wider effects on identity, include imagery rescripting, memory specificity training, cognitive remediation therapy, exposure therapies, narrative therapies, cultural interventions (e.g. music and arts therapies) and yoga/mindfulness-based interventions.

CONCLUSIONS

Treatments specifically targeted towards mitigating the neurobiological sequalae of AN are warranted, and emerging neurobiological and neuropsychological research utilising longitudinal designs and large sample sizes, as well as initial feasibility studies, are necessitated to bolster translational efforts.

A novel outpatient treatment model for patients with severe and enduring anorexia nervosa: an observational study of patient characteristics, treatment goals, and treatment course

BACKGROUND

Approximately 20-30% of people with anorexia nervosa develop an enduring form of the disorder. In the present study a newly developed outpatient treatment unit for patients with severe and enduring anorexia nervosa was described. The treatment model is flexible, patient-centered, and aims at enhancing quality of life, maintaining medical stability, and minimizing harm. Treatment contents, patient characteristics, treatment goals, and course of treatment from the first five years of operation were described and analyzed.

METHODS

The participants (N = 22) consisted of all referrals resulting in an assessment or treatment period at the unit between May 2017 and May 2022. All participants were women. The study was a registry study. Information regarding patient characteristics, treatment goals, and the course of treatment was gathered from medical records.

RESULTS

On average, the participants had had a diagnosed eating disorder for 12.80 years, and self-reported eating disorder symptoms for 19 years. Their symptomatology included severe eating disorder symptoms, psychiatric comorbidities, extreme underweight, and co-occurring medical conditions. Their treatment goals commonly concerned improving physical health, reducing eating disorder symptoms, improving psychological well-being, and improving quality of life. The majority of participants for whom this information was available benefited from the treatment (60%) and their treatment goals were met or partly met (66.6%), as measured by evaluations made by the patient or the treatment team. More than two thirds (69.2%) of the participants for whom this information was available remained weight stable or showed an increase in BMI.

CONCLUSIONS

This observational study suggests that many individuals with severe and enduring anorexia nervosa may benefit from flexible treatment, aiming at supporting quality of life. The results highlight the importance of coordinating and integrating the treatment of severe and enduring anorexia nervosa and co-occurring psychiatric disorders as well as medical complications. Further research and international dialogue about the how treatment for this vulnerable patient group should best be organized is called for. Trial registration Trial registration number: NCT05708404. Date of registration: 01/23/2023 (retrospectively registered).

Specific psychological therapies versus other therapies or no treatment for severe and enduring anorexia nervosa

BACKGROUND

Anorexia nervosa is a psychological condition characterised by self-starvation and fear or wait gain or other body image disturbance. The first line of treatment is specific psychological therapy; however, there is no consensus on best practice for treating people who develop severe and enduring anorexia nervosa (SEAN). Notably, there is no universal definition of SEAN.

OBJECTIVES

To evaluate the benefits and harms of specific psychological therapies for severe and enduring anorexia nervosa compared with other specific therapies, non-specific therapies, no treatment/waiting list, antidepressant medication, dietary counselling alone, or treatment as usual.

SEARCH METHODS

We used standard, extensive Cochrane search methods. The last search date was 22 July 2022.

SELECTION CRITERIA

We included parallel randomised controlled trials (RCTs) of people (any age) with anorexia nervosa of at least three years' duration. Eligible experimental interventions were any specific psychological therapy for improved physical and psychological health in anorexia nervosa, conducted in any treatment setting with no restrictions in terms of number of sessions, modality, or duration of therapy. Eligible comparator interventions included any other specific psychological therapy for anorexia nervosa, non-specific psychological therapy for mental health disorders, no treatment or waiting list, antipsychotic treatment (with or without psychological therapy), antidepressant treatment (with or without psychological therapy), dietary counselling, and treatment as usual as defined by the individual trials.

DATA COLLECTION AND ANALYSIS

We used standard methodological procedures expected by Cochrane. Our primary outcomes were clinical improvement (weight restoration to within the normal weight range for participant sample) and treatment non-completion. Results were presented using the GRADE appraisal tool.

MAIN RESULTS

We found two eligible studies, but only one study provided usable data. This was a parallel-group RCT of 63 adults with SEAN who had an illness duration of at least seven years. The trial compared outpatient cognitive behaviour therapy for SEAN (CBT-SEAN) with specialist supportive clinical management for SEAN (SSCM-SE) over eight months. It is unclear if there is any difference between the effect of CBT-SEAN versus SSCM-SE on clinical improvement at 12 months (risk ratio (RR) 1.42, 95% confidence interval (CI) 0.66 to 3.05) or treatment non-completion (RR 1.72, 95% CI 0.45 to 6.59). There were no reported data on adverse effects. The trial was at high risk of performance and detection bias. We rated the GRADE level of evidence as very low-certainty for both primary outcomes, downgrading for imprecision and risk of bias concerns.

AUTHORS' CONCLUSIONS

This review reports evidence from one trial that evaluated CBT-SEAN versus SSCM-SE. There was very low-certainty evidence of little or no difference in clinical improvement and treatment non-completion between the two therapies. There is a need for larger high-quality trials to determine the benefits of specific psychological therapies for people with SEAN. These should take into account the duration of illness as well as participants' previous experience with evidence-based psychological therapy for anorexia nervosa.

Conceptualisation of severe and enduring anorexia nervosa: a qualitative meta-synthesis

BACKGROUND

Severe and enduring anorexia nervosa (SE-AN) is amongst the most impairing of all mental illnesses. Collective uncertainties about SE-AN nosology impacts treatment refinement. Qualitative research, particularly lived experience literature, can contribute to a process of revision and enrichment of understanding the SE-AN experience and further develop treatment interventions. Poor outcomes to date, as evidenced in clinical trials and mortality for people with SE-AN (1 in 20) demonstrate the need for research that informs conceptualisations and novel treatment directions. This interpretative, meta-ethnographic meta-synthesis aimed to bridge this gap.

METHODS

A systematic search for qualitative studies that explored the AN experiences of people with a duration of greater than 3 years was undertaken. These studies included those that encompassed phenomenology, treatment experiences and recovery.

RESULTS

36 papers, comprising 382 voices of SE-AN experiences informed the meta-ethnographic findings. Four higher order constructs were generated through a synthesis of themes and participant extracts cited in the extracted papers: (1) Vulnerable sense of self (2) Intra-psychic processes (3) Global impoverishment (4) Inter-psychic temporal processes. Running across these meta-themes were three cross cutting themes (i) Treatment: help versus harm, (ii) Shifts in control (iii) Hope versus hopelessness. These meta-themes were integrated into conceptualisations of SE-AN that was experienced as a recursive process of existential self-in-relation to other and the anorexia nervosa trap.

CONCLUSIONS

The alternative conceptualisation of SE-AN proposed in this paper poses a challenge to current conceptualisations of AN and calls for treatments to engage with the complex intra and inter-psychic processes of the SE-AN, more fully. In doing so, clinicians and researchers are asked to continue to be bold in testing novel ideas that may challenge our own rigidity and attachment to dominant paradigms to best serve the individual person with SE-AN. The 'global impoverishment of self', found in this synthesis of AN experiences, should inform proposed diagnostic criteria for SE-AN.

Cognitive Flexibility in Hospitalized Patients with Severe or Extreme Anorexia Nervosa: A Case-Control Study

OBJECTIVE

To investigate whether cognitive inflexibility could be identified using the Wisconsin Card Sorting Test (WCST) in patients with severe and extreme anorexia nervosa (AN) compared to healthy control participants (HCs).

METHOD

We used the WCST to assess 34 patients with AN (mean age: 25.9 years, mean body mass index (BMI): 13.2 kg/m²) 3-7 days after admission to a specialized nutrition unit and 34 HCs. The Beck Depression Inventory II and the Eating Disorder Inventory 3 were distributed.

RESULTS

The patients displayed more perseveration than HCs controlled for age and years of education, with moderate effect sizes (perseverative responses (%): adjusted difference = -7.74, 95% CI: -14.29-(-1.20), p-value: 0.021; perseverative errors (%): adjusted difference = -6.01, 95% CI: -11.06-(-0.96), p-value: 0.020). There were no significant relationships between perseveration and depression, eating disorder symptoms, illness duration, or BMI.

DISCUSSION

Patients with severe and extreme AN demonstrated lower cognitive flexibility compared to HCs. Performance was not related to psychopathology or BMI. Patients with severe and extreme anorexia nervosa may not differ from less severe patients in cognitive flexibility performance. As this study exclusively focused on patients suffering from severe and extreme AN, potential correlations might be masked by a floor effect.

Inaccessibility of care and inequitable conceptions of suffering: a collective response to the construction of "terminal" anorexia nervosa

Informed by our lived experiences with eating disorders, our work providing direct support to communities underserved by existing healthcare structures, and our commitment to social justice, we are deeply troubled by several aspects of the proposed characteristics for "terminal" anorexia nervosa outlined by Gaudiani et al. in Journal of Eating Disorders (10:23, 2022). We have identified two substantial areas of concern in the proposed characteristics provided by Gaudiani et al. and the subsequent publication by Yager et al. (10:123, 2022). First, the original article and the subsequent publication fail to adequately address the widespread inaccessibility of eating disorder treatment, the lack of parameters for what constitutes "high quality care", and the prevalence of trauma experienced in treatment settings for those who do access treatment. Second, the characteristics proposed for "terminal" anorexia nervosa are constructed largely based on subjective and inconsistent valuations of suffering which build on and contribute to harmful and inaccurate eating disorder stereotypes. Overall, we believe these proposed characteristics in their current form stand to detract from, rather than assist, the ability of patients and providers to make informed, compassionate, and patient-centered decisions about safety and autonomy both for individuals with enduring eating disorders and for individuals with more recently diagnosed eating disorders.

A mechanistic staging model of reward processing alterations in individuals with binge-type eating disorders

Altered reward processing is thought to characterize binge-type eating disorders, but the exact nature of these alterations is unclear. A more fine-grained understanding of whether specific aspects of reward processing contribute to the development or maintenance of binge eating may point to new therapeutic targets and personalized treatments. The incentive sensitization theory of addiction proposes that repeated use of a substance increases the desire to approach a reward ('wanting') but not pleasure when consuming the reward ('liking'), suggesting that reward processes driving addiction change over time. We hypothesize that the same may be true for binge eating. Further, consistent with the maladaptive scaling hypothesis, reward processing may be heightened for multiple reinforcers in at-risk individuals but become tuned toward food once binge eating is initiated. In this article, we propose a mechanistic staging model of reward processing in binge-type eating disorders that synthesizes existing data and posits that alterations of reward processing depend on illness stage and reward type. We outline translational methods for testing key hypotheses and discuss clinical implications. Considering reward processing alterations in relation to illness stage has the potential to improve treatment outcomes by ensuring that the mechanisms targeted are personalized to the individual patient. PUBLIC SIGNIFICANCE: Individuals with binge-type eating disorders experience alterations in their desire for, and pleasure from, food. We believe that the exact nature of these alterations in reward processing change over the course of illness-from the at-risk state to an established illness. If true, treatments for binge-type eating disorders that target reward processing should be personalized to the illness stage of the patient.

Association of emotion recognition ability and interpersonal emotional competence in anorexia nervosa: A study with a multimodal dynamic task

OBJECTIVE

Interpersonal difficulties are evidenced in Anorexia Nervosa (AN) and are thought to contribute to disease onset and maintenance, however, research in the framework of emotional competence is currently limited. Previous studies have often only used static images for emotion recognition tasks, and evidence is lacking on the relationships between performance-based emotional abilities and self-reported intra- and interpersonal emotional traits. This study aimed to test multimodal dynamic emotion recognition ability in AN and analyze its correlation with the psychometric scores of self- and other-related emotional competence.

METHOD

A total of 268 participants (128 individuals with AN and 140 healthy controls) completed the Geneva Emotion Recognition Test, the Profile of Emotional Competence, the Reading the Mind in the Eyes Test, and measures of general and eating psychopathology. Scores were compared between the two groups. Linear mixed effects models were utilized to examine the relationship between emotion recognition ability and self-reported measures and clinical variables.

RESULTS

Individuals with AN showed significantly poorer recognition of emotions of both negative and positive valence and significantly lower scores in all emotional competence dimensions. Beside emotion type and group, linear mixed models evidenced significant effects of interpersonal comprehension on emotion recognition ability.

DISCUSSION

Individuals with AN show impairment in multimodal emotion recognition and report their difficulties accordingly. Notably, among all emotional competence dimensions, interpersonal comprehension emerges as a significant correlate to emotion recognition in others, and could represent a specific area of intervention in the treatment of individuals with AN.

PUBLIC SIGNIFICANCE

In this study, we evidence that the ability to recognize the emotions displayed by others is related to the level of interpersonal emotional competence reported by individuals with anorexia nervosa. This result helps in understanding the social impairments in people with anorexia nervosa and could contribute to advancements in the application of the training of emotional competence in the treatment of this disorder.

Early Course of Symptom Development in Anorexia Nervosa

PURPOSE

Anorexia nervosa (AN) commonly begins in adolescence; however, detailed knowledge of symptom trajectories, including their temporal sequence, is less well elucidated. The purpose of the present study is to describe the onset and duration of disordered eating behaviors prior to a diagnosis of AN, examine concordance between child and parent report, and examine the relationships between timing of symptom onset and illness severity.

METHODS

Seventy-one adolescents (ages 12-18 years) and their parents were interviewed about dieting, restriction, loss of control/binge eating, purging, excessive/compulsive exercise, weight history, and amenorrhea. Body mass index percentiles were calculated, and adolescents completed the Eating Disorder Examination-Questionnaire.

RESULTS

Restriction, being underweight, dieting, and excessive exercise were reported by most of the sample; purging, loss-of-control eating, and having been overweight were reported by less than a third. Dieting typically emerged first, on average around age 14; the remainder of behaviors tended to emerge between ages 14 and 14½; and average age of formal diagnosis was slightly over 15 years. Dyads had good agreement regarding presence and timing of all behaviors except for dieting, for which children reported about 6 months earlier onset/longer duration, compared to parents. Although older age at interview was associated with lower body mass index percentile and higher EDE-Q score, neither age of onset nor duration was associated with severity when controlling for current age.

DISCUSSION

Teens and parents describe a similar sequence of behavior changes leading up to a diagnosis of AN that typically begins with dieting and occurs over an approximate 1- to 1½-year period. Querying teens and parents about eating behavior changes may aid in identification and early intervention in AN; adolescents with normal weight who engage in persistent dieting or restrictive eating may warrant more frequent weight monitoring.

Treatment response in children and adolescents with anorexia nervosa: a naturalistic, case-control study

PURPOSE

Although a few recent articles describe adults with treatment-resistant anorexia nervosa (TR-AN), no study addresses the specific features of subjects not responding to treatment in the developmental age. This study reports on the clinical and psychopathological variables that distinguish children and adolescents who did not respond to treatment (here "TR-AN") from good-outcome controls, in a multidisciplinary hospital treatment setting.

METHODS

Naturalistic, case-control study conducted on individuals showing lack of response to treatment and good-outcome controls. TR-AN was defined as two or more incomplete admissions and no complete admissions, consistently with studies in adults. Good-outcome was defined as complete first admission, availability for follow-up visit after 6 months, and maintaining at follow-up a %BMI > 70% in the absence of binging or purging in the preceding 3 months. Psychopathological (Eating Disorders Inventory-3 EDI-3; Beck Depression Inventory-II), clinical, and treatment variables at admission were compared. Significant differences in the univariate analyses were included in an exploratory binary logistic regression.

RESULTS

Seventy-six patients (30 TR-AN, 46 good-outcome AN controls) were enrolled (mean age 14.9 ± 1.9 years, F = 94.7%). TR-AN individuals had a higher age at admission and higher EDI-3 Eating Disorder Risk (EDRC) scores, were treated less frequently with a nasogastric tube (NGT), and achieved a lower BMI improvement at discharge than good-outcome controls. A predictive model for TR-AN status was found (X² = 19.116; Nagelkerke-R² = 0.478, p < 0.001), and age at admission (OR = 0.460, p = 0.019), EDI-3 EDRC (OR = 0.938, p = 0.043), and NGT (OR = 8.003, p = 0.019) were associated with a TR-AN status.

CONCLUSIONS

This is the first report on the psychopathological and clinical characteristics of children and adolescents not responding to treatment. These patients showed higher age and eating disorder scores, and were less frequently fed with NGT than controls. Despite the multiple incomplete admissions of our subjects, the short included follow-up limits the possibility for direct comparisons with adult samples of treatment-resistant patients. Thus, the specific features of children and adolescents with TR-AN should be assessed in longitudinal studies.

LEVEL OF EVIDENCE

III, Observational, case-control study.

Suicidality in adolescents with onset of anorexia nervosa

OBJECTIVES

The mortality rate in patients with anorexia nervosa (AN) is 5 to 10 times higher than in general population and, suicide is one of the main causes of death. We evaluated the prevalence of suicidality (ideation, self-injurious behaviour, suicidal attempts) in 100 adolescents with onset of AN and we explored the correlation between suicidality, severity of AN symptoms and psychiatric comorbidity.

METHODS

We subdivided AN patients into restrictive (R-AN; n = 66) and restrictive atypical (A-AN; n = 34), according to the European Guidelines criteria. Assessment was performed using the eating disorder inventory 3rd version, the schedule for affective disorders and schizophrenia for school-age children-present and lifetime version interview, and the Columbia-suicide severity rating scale. Fisher's exact test and Mann-Whitney test (with correction for multiple testing) were used to compare the distribution of categorical and continuous variables between R-AN and A-AN patients, and between patients with vs. without suicidal behaviours.

RESULTS

Twenty-seven patients (27%) presented suicidality as clinical feature, expressed as at least one of the following: suicidal ideation (24%), self-cutting (19%), and suicidal attempt (6%). Patients with suicidality showed greater severity of psychiatric symptoms related to AN psychopathology and presented psychiatric comorbidity, especially depression, more often than patients who did not reported suicidality (70,4% vs 29,6%). No significant differences in terms of suicidal behaviours and AN-specific psychopathology were found between R-AN and A-AN.

CONCLUSIONS

Suicidality in adolescent patients with R-AN and A-AN seems to be related to ED symptoms. These data highlight the importance of screening for suicidality among adolescents at onset of AN, and confirms that A-AN should not be considered a milder disease.

LEVEL OF EVIDENCE

Level IV: Evidence obtained from multiple time series analysis such as case studies. (NB: Dramatic results in uncontrolled trials might also be regarded as this type of evidence).

Comparing illness duration and age as predictors of treatment outcome in female inpatients with anorexia nervosa

It has been widely assumed that longer illness duration predicts poorer treatment outcome in persons with anorexia nervosa (AN). However, studies on the prognostic effects of illness duration have produced mixed results. Thus, the aim of the current study was to examine the relationship between illness duration and short-term treatment outcome in a large sample of female inpatients with AN (n = 902, aged 12-73 years). Treatment outcome variables included body mass index, therapist-rated global functioning (Global Assessment of Functioning scale and Clinical Global Impression-Improvement scale) and subscales of the Eating Disorder Inventory-2. Longer illness duration predicted smaller weight gain, smaller improvements in global functioning, and smaller decreases in self-reported eating disorder symptoms. However, illness duration was almost perfectly correlated with patients' age (r = .81, 95% CI [.76, .85]), and comparing regression models revealed that models using either illness duration or age were indistinguishable. Results suggest that longer illness duration does indeed relate to worse short-term treatment outcome in inpatients with AN. This effect, however, does not add significant information above and beyond patients' age and, thus, the importance of illness duration for anticipating treatment outcome both in research and in clinical practice must be critically examined.

Creating a care pathway for patients with longstanding, complex eating disorders

BACKGROUND

Recovery rates for people with eating disorders are low; fewer than half recover and approximately 20% develop a longstanding eating disorder. Patients with longstanding eating disorders are often referred to as "SEED" (severe and enduing eating disorders) although this remains controversial and is not acknowledged in the British treatment guidance. This project aimed to generate recommendations for a longstanding eating disorder care pathway by identifying what proportion of patients have longstanding eating disorders and how to best identify and support them.

METHODS

Initially, a literature review was completed, followed by interviews with service-users who consider themselves to have longstanding eating disorders, and focus groups with staff members. The results were combined to create a definition of a longstanding eating disorder which was used to establish how many service-users could benefit from the pathway. The qualitative data was used to produce recommendations for a tailored pathway for those with longstanding eating disorders.

RESULTS

The results highlighted that, although "SEED" is often used, participants preferred to be referred to as "longstanding" or having no label. Qualitative analysis identified four themes in relation to supporting this population group which described how to structure the service and individualise care, as well as patients' relationship to the service, and how to build a life after eating disorder services.

CONCLUSIONS

Recommendations included promoting a hopeful message, focusing on quality of life and introducing peer support. Crucially, accessing the pathway should not result in being labelled "SEED", nor should it prevent access to recovery focused interventions including weight restoration. The full list of recommendations are included as well as the implications of the project and limitations.

The importance of an eating disorder treatment support center in Japan: A survey from 2017 to 2020

We investigated the impact of medical collaboration between the Chiba Eating Disorder (ED) Treatment Support Center (CSC) in Chiba Prefecture and the ED treatment center at Kohnodai Hospital. We calculated the number of consultations performed by the CSC and referral rate to other medical facilities from October 2017 to March 2020, as well as the clinical characteristics of the patients treated at our hospital from April 2016 to March 2020. Data on duration of hospitalization and increase in body mass index (BMI) during hospitalization were recorded. Patients were divided into all of the Japan and Chiba Prefecture groups. Data were evaluated by Poisson's regression analysis or one-way analysis of variance. A p-value < 0.05 was considered significant. The 2019 data served as reference values. Our data demonstrated that while the number of CSC consultations increased (2017:201, 2018:547, 2019:552) annually, the number of hospitalizations for EDs decreased (197, 194, 134, respectively). In comparison, the number of outpatient consultations for EDs across all of Japan peaked in 2018 and decreased significantly thereafter (2016:110, 2017:139, 2018:193, 2019:142). After the CSC was established, the number of patients treated in our department decreased as expected. Patients with anorexia nervosa (AN) who were treated on an outpatient basis across all of Japan were younger in 2019 (27.0 ± 1.2) than in 2018 (31.9 ± 1.2). Severe cases had better outcomes, and there was a significant increase in BMI of inpatients with AN in both groups. Overall, the activities of such ED treatment support center promoted successful treatment of severe ED cases.

Terminal anorexia nervosa is a dangerous term: it cannot, and should not, be defined

A recent article (JED 10:23, 2022) proposed defining terminal anorexia to improve access to palliative and hospice care, and to medical aid in dying for a minority of patients with severe and enduring anorexia nervosa (SE-AN). The authors presented three cases and, for two, the first author participated in their death. Anorexia nervosa is a treatable psychiatric condition for which recovery may be uncertain. We are greatly concerned however regarding implications of applying the label "terminal" to anorexia nervosa and the risk it will lead to unjustified deaths in individuals whose mental illness impairs their capacity to make a reasoned treatment decision.

Severe and Enduring' Stage in Anorexia Nervosa: Comparing Eating Attitudes, Impairment and Associated Psychopathology

This study aimed to assess differences in eating attitudes, impairment, and related psychopathology at treatment presentation for patients with "Non-severe and enduring Anorexia Nervosa" (illness duration of <7 years) and patients with "severe and enduring Anorexia Nervosa" (illness duration of 7 years or more). One hundred and thirty-nine patients diagnosed with Anorexia Nervosa participated in this study. Participants were interviewed with the Eating Disorder Examination (EDE) and asked to complete several questionnaires at the end of the first treatment appointment. We also explored differences at treatment presentation by considering alternative criteria to define groups, namely a composite of illness duration and clinical impairment (≥16 CIA total score). No differences were found when comparing participants based on illness duration. However, when participants were classified into a different classification scheme: "Non-severe and enduring Anorexia Nervosa" (illness duration <7 years and a CIA total score <16) vs. "severe and enduring Anorexia Nervosa" (illness duration ≥7 years and CIA total score ≥16), significant differences were found in terms of eating pathology, depressive symptomatology, psychological distress, and emotion dysregulation. Further research is needed to better understand the role of illness duration and clinical impairment in informing the course of AN.

Terminal anorexia nervosa: three cases and proposed clinical characteristics

BACKGROUND

Most individuals with eating disorders will either recover, settle into an unrecovered but self-defined acceptable quality of life, or continue to cycle from crisis to relative stability over time. However, a minority of those with severe and enduring eating disorders recognize after years of trying that recovery remains elusive, and further treatment seems both futile and harmful. No level of harm reduction proves achievable or adequately ameliorates their suffering. In this subgroup, many of those with anorexia nervosa will experience the medical consequences of malnutrition as their future cause of death. Whereas anyone who wishes to keep striving for recovery despite exhaustion and depletion should wholeheartedly be supported in doing so, some patients simply cannot continue to fight. They recognize that death from anorexia nervosa, while perhaps not welcome, will be inevitable. Unfortunately, these patients and their carers often receive minimal support from eating disorders health professionals who are conflicted about terminal care, and who are hampered and limited by the paucity of literature on end-of-life care for those with anorexia nervosa.

CASE PRESENTATION

Three case studies elucidate this condition. One patient was so passionate about this topic that she asked to be a posthumous co-author of this paper.

CONCLUSIONS

Consistent with literature on managing terminal illness, this article proposes clinical characteristics of patients who may be considered to have a terminal eating disorder: diagnosis of anorexia nervosa, older age (e.g. age over 30), previous participation in high quality care, and clear and consistent determination by a patient who possesses decision-making capacity that additional treatment would be futile, knowing their actions will result in death. By proposing the clinical characteristics of terminal anorexia nervosa, we hope to educate, inspire compassion, and help providers properly assess these patients and provide appropriate care. We hope that this proposal stimulates further expert consensus definitions and clinical guidelines for management of this population. In our view, these patients deserve the same attendant care and rights as all other patients with terminal illness, up to and including medical aid in dying in jurisdictions where such care is legal.

New developments in cognitive-behavioural therapy for eating disorders (CBT-ED)

PURPOSE OF REVIEW

This review summarizes recent developments in cognitive-behavioural therapy for eating disorders (CBT-ED). More specifically, the past five years were covered, with the latest UK and Dutch guidelines for eating disorders as a starting benchmark, and with special consideration of the past 18 months.

RECENT FINDINGS

The new research can be divided into findings that have: (1) reinforced our existing understanding of CBT-ED's models and impact; (2) advanced our understanding and the utility of CBT-ED, including its application for the 'new' disorder Avoidant/Restrictive Food Intake Disorder (ARFID); (3) suggested new directions, which require further exploration in clinical and research terms. These include learning from the circumstances of the COVID-19 pandemic.

SUMMARY

CBT-ED has developed substantially in the past 5 years, with consolidation of its existing evidence base, further support for real-life implementation, extension of methods used, and the development of new approaches for working with younger people - particularly in the form of treatments for ARFID. Over the past 18 months, even more promising changes in delivery occurred in response to the COVID19 pandemic, showing that we can adapt our methods in order to work effectively via remote means. Challenges remain regarding poor outcomes for anorexia nervosa.

Description of characteristics and outcomes of a cohort of patients with severe and enduring eating disorders (SE-ED)

OBJECTIVE

To describe the characteristics of the patients, as well as the treatment outcomes for the people treated in an Endocrinology and Nutrition unit with a diagnosis of SE-ED (> 7 years evolution despite evidence-based conventional treatment).

METHODS

A descriptive observational study was conducted. Patients with a diagnosis of SE-ED (anorexia nervosa and bulimia nervosa) treated in the Endocrinology and Nutrition service of the Virgen del Rocío University Hospital between 2014 and 2019 were included.

RESULTS

67 patients were contacted and accepted to participate in the study. 95.5% were women. 67.2% were diagnosed with AN (anorexia nervosa) and 32.8% with BN (bulimia nervosa). Their median ages (years) at the onset of symptoms, beginning of follow-up and at present were 17, 32 and 42.5 respectively. Their median time of follow-up was 9 years. 73.1% had mental comorbitidy and AN patients had more osteoporosis (48.9% vs 22.7%, p = 0.04) and hypogonadotropic hypogonadism (31.1% vs. 4.5%, p = 0.014).

DISCUSSION

The SE-ED patients in our sample began treatment years after the onset of symptoms, which may have led to their chronification. This emphasizes the importance of an early diagnosis in eating disorders. They presented with a high rate of physical complications and mental comorbidity. In the current sample, it was determined that patients with AN presented with higher rates of osteoporosis and hypogonadotropic hypogonadism than patients with BN.

LEVEL OF EVIDENCE

Level III: Evidence obtained from well-designed cohort or case-control analytic studies. At present, the criteria for severe and enduring eating disorders (SE-ED) are not sufficiently clearly defined. It has been calculated that approximately 20% of patients with anorexia nervosa (AN) and 10% of patients with bulimia nervosa (BN) suffer a chronification. We evaluated the characteristics of the patients, as well as the treatment outcomes for the people treated in an Endocrinology and Nutrition unit with a diagnosis of SE-ED (which was made based on an evolution greater than 7 years despite conventional treatment). The SE-ED patients in our sample began treatment years after the onset of symptoms, which may have led to their chronification. They presented with a high rate of physical complications and mental comorbidity. In the current sample, it was determined that patients with AN presented with higher rates of osteoporosis (health condition that weakens bones, making them fragile and more likely to break) and hypogonadotropic hypogonadism (illness in which testes or ovaries produce little or no sex hormones due to a problem in the pituitary gland) than patients with BN.

Establishing consensus for labeling and defining the later stage of anorexia nervosa: A Delphi study

OBJECTIVE

Varied perspectives on the later stage of anorexia nervosa (AN) have left the field of eating disorders without a consistent label or definition for this subpopulation. As a result, diverse criteria when recruiting participants have led to incomparable results across research studies and a lack of guidance when assessing and treating patients in the clinical context. The aim of the current study was to develop consensus-based guidelines on the labeling and defining of the later stage of AN.

METHOD

Utilizing the Delphi methodology, a professional panel of experts (N = 21) participated in three rounds of questionnaires. Five open-ended questions (Round 1) were analyzed using content analysis to form statements relating to a classification system for labeling and defining the later stage of AN. A total of 80 statements were rated in terms of panelists' level of agreement (Rounds 2 and 3).

RESULTS

Consensus was achieved for 28.8% of statements and a further 16.3% of statements reached near consensus in the second and third round of questionnaires. Two labels were identified with five defining features achieving consensus.

DISCUSSION

Findings from the study suggest an alternative approach to labeling be adopted with consensus-based guidelines established for defining the later stage of AN. Implications that may occur from a unified classification system are explored with longitudinal research required to assess the impact on patients experiencing the later stage of AN.

How and why does the disease progress? A qualitative investigation of the transition into long-standing anorexia nervosa

OBJECTIVE

Despite an increased interest in understanding characteristics of long-standing anorexia nervosa (AN), there is a lack of knowledge into the processes that occur with the development and maintenance of the disease. This has impeded the development of novel treatment approaches that may prove more effective than traditional medical models of therapy. To improve the prognosis of these long-standing presentations, an understanding as to how and why the AN disease progresses is required. It was therefore the aim of the current study to investigate the transition of AN from earlier to later stages.

METHOD

The study adopted a narrative inquiry approach and a total of 11 women with long-standing AN participated in an interview. The newly developed photovoice method assisted in data collection with typologies of chronic illness facilitating the emergence of salient themes.

RESULTS

The qualitative analysis resulted in the identification of five themes: (a) transition, (b) trauma, (c) functionality, (d) identity, and (e) failure of current models of treatment.

CONCLUSIONS

Together with identifying key themes, the study provides insight into some possible reasons why current treatment models are failing to promote recovery. Future research examining the effectiveness of treatment that targets underlying causes and maintaining factors of the illness are suggested. Additional education for health professionals is also recommended in order to reduce the trauma that is currently being experienced by some patients with a long-standing illness.

Lived experience perspectives on labeling and defining long-standing anorexia nervosa

OBJECTIVE

Since efforts to stage anorexia nervosa (AN) revealed the existence of various presentations, research into the long-standing subgroup has increased. A change in treatment has been proposed with the intention to use more effective evidence-based methods that target symptoms of the long-standing presentation and improve prognosis. A barrier in achieving this goal in both research and clinical contexts is the lack of a consistent label and definition. This makes the ability to assess, recruit and treat these presentations difficult. Investigations into how this subgroup may be differentiated from other stages of the disorder have included the opinions of practitioners and researchers with little consideration for the perspectives of individuals living with this illness. It was the aim of the current study to investigate lived experience perspectives on the way long-standing AN should be labeled and defined.

METHODS

Data were collected through a semi-structured interview within a narrative inquiry framework. This approach is beneficial when examining processes that occur over time, such as investigations into a long-term illness. A total of 11 women with a presentation of long-standing AN participated in an interview. Data were divided into two categories for analysis based on the association to labeling or defining the features of the long-standing AN illness.

RESULTS

Two labels emerged during the analysis with participants describing a preference for the use of 'severe and enduring' over 'chronic' when referring to their presentation of AN. When defining the illness, the most preferred criterion was illness duration with mixed perspectives for the use of previously failed treatment attempts. Participants described a consistent dislike for the use of low body weight as a feature in the defining of the illness.

CONCLUSIONS

The current study describes how individuals with a lived experience prefer to have the long-standing AN presentation labeled and defined. It is the hope of the authors that these insights will be adopted into any guidelines developed to ensure individuals most affected by this disorder have a voice and continue to be given the opportunity to contribute to topics related to their illness. Anorexia nervosa (AN) is a complex illness that has been divided into stages based on the severity of symptoms. Little is known about the AN stage that persists over lengthy periods of time with research pursuits underway to determine characteristics that allow this disorder to persevere. A barrier in researching and treating these individuals is the lack of a consistent label to refer to these presentations and criteria that will allow us to identify this stage of AN. The aim of the current study was to determine how individuals with a lived experience of long-standing AN prefer to have their illness labeled and defined. A total of 11 women who had experienced this stage of AN were interviewed with the majority of participants reporting to prefer the label 'severe and enduring' over the term 'chronic'. Additionally, most of the participants had a preference for defining their illness based on the duration of time the illness had persisted with mixed opinions for using the number of previously unsuccessful treatment attempts as criterion. The authors are hopeful that any guidelines established for labeling and defining long-standing AN will incorporate the perspectives of individuals with a lived experience of the illness.

The Neuropsychological Profile of Severe and Enduring Anorexia Nervosa: A Systematic Review

Characteristics of Severe and Enduring Anorexia Nervosa (SE-AN) are being investigated to differentiate the patients experiencing SE-AN from those at earlier stages of the AN disease. The current systematic review was the first step in exploring neuropsychological functioning as a potentially identifying characteristic for long-term presentations. With a subgroup of AN patients reflecting a unique neuropsychological profile that is proportionate to the quantity of patients that go on to develop SE-AN, it was the aim of this review to assess neuropsychological functioning in the later stage of the disease. In accordance with PRISMA guidelines, a literature search was conducted using four electronic databases (PsycINFO, MEDLINE, Web of Science, and Scopus) for neuropsychological research on AN participants with a seven or more year illness duration. Datasets that met inclusion criteria were screened for SE-AN participants (N = 166) and neuropsychological data extracted together with potentially confounding variables and information required to conduct a quality assessment. In research investigating decision-making, participants with a SE-AN presentation demonstrated significantly lower functioning compared to healthy controls. There was conflicting evidence for differences in intellectual functioning and set-shifting abilities with no variability indicated in central coherence, memory, attention, reasoning, or processing speed. If findings from this preliminary analysis are confirmed through empirical research, implications include earlier identification of SE-AN patients and more effective treatment development.

Inpatients with severe-enduring anorexia nervosa: Understanding the "enduringness" specifier

Background

Despite the need for a common definition of severe and enduring anorexia nervosa (SE-AN) with the overarching goal to optimize treatments, this definition still is being debated. Therefore, in this study we conducted an in-depth investigation of the history of AN and its clinical outcomes on inpatients with AN to ascertain the eventual “profiles” for individuals with varying durations of the illness (DOI).

Methods

We recruited 169 inpatients with AN, grouping them according to DOI: <3 years (short duration, SD-AN); 3–6.99 years (medium duration, MD-AN); and ≥7 years (long duration, LD-AN). We then performed a self-report and interview-based investigation of AN history, clinical data, eating, and general psychopathology, including personality, premorbid traits, stage of change, and quality of life. We measured the clinical outcomes for hospitalization as well.

Results

The majority of the measures did not differ across groups. Those with LD-AN were older and diagnosed mostly with the binge-purging AN subtype, failed more previous AN-related treatments, reported a lower lifetime body mass index, and trended toward a younger age at onset when compared to the other groups. All patients responded equally well to hospitalization, but patients with SD-AN improved less in drive for thinness and body-related concerns.

Conclusions

We did not find the “enduringness” of AN to be a specifier of severity. Hospitalization was effective for those with LD-AN and MD-AN, while interventions for the core cognitive aspects of over-evaluation of body shape should be offered to patients with SD-AN.

The 17-year outcome of 62 adult patients with longstanding eating disorders-A prospective study

OBJECTIVE

Although studies with short and intermediate observation time suggest favorable outcomes in regard to eating disorders (ED), there is limited knowledge on long-term outcomes. The present study aimed to investigate the 5- and 17-year outcome of adult patients with longstanding ED who were previously admitted to an inpatient ED unit. ED diagnoses and recovery, comorbid and general psychopathology, along with psychosocial functioning and quality of life were evaluated.

METHOD

Sixty-two of the 80 living patients (78% response rate) with anorexia nervosa (n = 23), bulimia nervosa (n = 25), or other specified feeding or eating disorders (n = 14) at admission were evaluated. The mean age at the 17-year follow-up point was 46.2 (SD 7.5). The Eating Disorder Examination (EDE) was used to assess recovery. The Mini International Neuropsychiatric Interview (M.I.N.I.) and self-report instruments provided additional information.

RESULTS

There was a significant reduction in patients fulfilling criteria for an ED from the 5-year to the 17-year follow-up, meanwhile recovery rates were stable. A total of 29% of the patients were fully recovered and 21% were partially recovered while the remaining 50% had not recovered. No significant changes were found in any self-report measures and more than 70% had a comorbid disorder at both assessments.

DISCUSSION

The findings illustrate the protracted nature of ED for adults with longstanding ED. A long illness duration prior to treatment is unfortunate and early detection and treatment is advisable.

Intolerance of Uncertainty and Eating Disorder Symptoms Over the Course of Intensive Treatment

There is a critical need to identify processes that may influence outcome in existing treatments for eating disorders (EDs). Intolerance of uncertainty (IU), which refers to excessive distress regarding uncertain situations, is a well-established feature of anxiety disorders. Emerging work suggests that IU decreases over the course of cognitive-behavioral treatments and may relate to better treatment outcomes. As some literature has suggested IU may functionally maintain ED symptoms, testing whether changes in IU over treatment relate to outcome may result in the identification of novel treatment targets. This study aimed to build upon past work documenting links between IU and ED symptoms by exploring changes in IU over treatment and links between early change in IU (1-month) and discharge symptoms. Participants (N = 274) receiving partial hospitalization treatment completed the Eating Pathology Symptoms Inventory and Intolerance of Uncertainty Scale at admission, 1-month post-admission, and discharge. Results suggested that IU significantly reduced from admission to discharge and that reductions in IU scores from admission to 1-month related to cognitive restraint, dietary restriction, and body image at discharge. However, this pattern did not hold for exercise, binge eating, or purging. Altogether, these results replicate past work supporting IU as a common feature across ED diagnoses and provide initial data suggesting that targeting IU early in treatment may enhance treatment outcomes.

Optimising care pathways for adult anorexia nervosa. What is the evidence to guide the provision of high-quality, cost-effective services?

The aim of this paper is to consider how changes in service planning and delivery might improve the care pathways for adult anorexia nervosa. Although anorexia nervosa has a long history in Europe, its framing as a mental disorder is quite recent. The changing forms and increasing epidemiology of eating disorders has led to the expansion of specialised services. Although some services provide care over the entire clinical course, more often services are divided into those that care for children and adolescents or adults. The transition needs to be carefully managed as currently these services may have a different ethos and expectations. Services for adults have a broad range of diversity (diagnostic subtype, medical severity, comorbidity, stage of illness and psychosocial functioning) all of which impacts on prognosis. A tailored, approach to treatment planning could optimise the pathway. Facilitating early help seeking and rapid diagnosis in primary care and reducing specialised services waiting lists for assessment and treatment could be a form of secondary prevention. The use of precision models and /or continuous outcome monitoring might reduce the third of patients who require more intensive care by applying augmentation strategies. Finally, gains from intensive care might be sustained by relapse prevention interventions and community support to bridge the transition home. Together these measures might reduce the proportion of patients (currently a third) with ill health for over 20 years. For this group rehabilitation strategies may improve functioning until new treatment emerge.

The impact of duration of illness on treatment nonresponse and drop-out: Exploring the relevance of enduring eating disorder concept

OBJECTIVE

There are no generally accepted definitions or markers of treatment nonresponse in eating disorders (EDs). The aim of this paper was to examine how the duration of illness and other potential prognostic markers impacted on nonresponse and drop-out from treatment across different EDs subtypes.

METHODS

A total sample of 1199 consecutively treated patients with EDs, according to Diagnostic and Statistical Manual of Mental Disorders, fifth edition criteria, participated in this study. Kaplan-Meier curves were calculated for each ED diagnosis in which the probability of recovery was plotted against the duration of illness.

RESULTS

Full remission was more likely for people with binge eating disorder (BED; 47.4%) and anorexia nervosa (AN; 43.9%) compared to bulimia nervosa (BN; 25.2%) and other specified feeding and EDs (OSFED; 23.2%). The cut-off points for the duration of the illness related with high likelihoods of poor response was 6-8 years among OSFED, 12-14 years among AN and BN and 20-21 years among BED. Other variables predicting nonresponse included dysfunctional personality traits.

CONCLUSIONS

Nonresponse to treatment is associated with duration of illness which is in turn associated with poor response to previous treatment. However, there was no evidence for staging the illness using specific duration of illness criteria. Nevertheless, the shorter temporal trajectory for OSFED suggests that early interventions may be of importance for this group.

Severe and Enduring Anorexia Nervosa: Enduring Wrong Assumptions?

To the extent that severe and lasting anorexia nervosa (SE-AN) is defined in terms of refractoriness to the best treatments available, it is mandatory to scrutinize the proven effectiveness of the treatments offered to patients. The array of so-called current evidence-based treatments for anorexia nervosa (AN) encompasses the entire spectrum of treatments ranging from specialized brand-type treatments to new treatments adapted to the specific characteristics of people suffering from AN. However, after several randomized control trials, parity in efficacy is the characteristic among these treatments. To further complicate the landscape of effective treatments, this "tie score" extends to the treatment originally conceived as control conditions, or treatment as usual conditions. In retrospection, one can understand that treatments considered to be the best treatments available in the past were unaware of their possible iatrogenic effects. Obviously, the same can be said of the theoretical assumptions underpinning such treatments. In either case, if the definition of chronicity mentioned above is applied, it is clear that the responsibility for the chronicity of the disorder says more about the flagrant inefficacy of the treatments and the defective assumptions underpinning them, than the nature of the disorder itself. A historical analysis traces the emergence of the current concept of "typical" AN and Hilde Bruch's contribution to it. It is concluded that today's diagnostic criteria resulting from a long process of acculturation distort rather than capture the essence of the disorder, as well as marginalizing and invalidating patients' perspectives.

Reward Learning Through the Lens of RDoC: a Review of Theory, Assessment, and Empirical Findings in the Eating Disorders

PURPOSE OF REVIEW

Reward-related processes may represent important transdiagnostic factors underlying eating pathology. Using the NIMH Research Domain Criteria as a guide, the current article reviews theories, behavioral and self-report assessments, and empirical findings related to reward learning in the eating disorders.

RECENT FINDINGS

Data from behavioral tasks suggest deficits in reinforcement learning, which may become more pronounced with increasing disorder severity and duration. Self-report data strongly implicate positive eating and thinness/restriction expectancies (an element of reward prediction error) in the onset and maintenance of eating pathology. Finally, self-report measures of habit strength demonstrate relationships with eating pathology and illness duration; however, behavioral task data do not support relationships between eating pathology and a propensity towards general habit development. Existing studies are limited, but provide preliminary support for the presence of abnormal reward learning in eating disorders. Continued research is needed to address identified gaps in the literature.

A Perspective on Chronic and Long-Lasting Anorexia Nervosa

Anorexia Nervosa (AN) is a severe eating disorder which typically develops in younger females. Many studies focus on this specific population, a majority of which will eventually partially or fully recover. A minority will become chronic despite extensive treatment. These patients are treatment-resistant and may not necessarily benefit from usual treatment. In this article we will reflect on possible mechanisms which may explain the maintenance of disease, and especially on the possible role of affective and anxiety disturbances. We will use, due to the lack of large-scale studies, data from risk and prognostic factors, treatment options and neurobiological correlates in chronic AN patients. Lastly, we will propose how these elements may advise further research and treatments.

Discharge Body Mass Index, Not Illness Chronicity, Predicts 6-Month Weight Outcome in Patients Hospitalized With Anorexia Nervosa

Proposed treatments for severe and enduring anorexia nervosa (SE-AN) focus on quality of life, and psychological and social functioning. By de-emphasizing weight restoration as a priority, however, premature diagnosis of SE-AN may reduce potential for recovery. The present study assessed the effect of weight restoration, illness duration, and severity on treatment outcome 6 months after discharge from an intensive, meal-based behavioral treatment program. Participants included hospitalized adult women (N = 191) with AN or underweight other specified feeding and eating disorder (OSFED). Participants were characterized as short-term (ill <7 years; n = 74) or long-term ill (ill ≥ 7 years; n = 117). Compared with short-term ill, long-term ill patients were older, had lower lifetime body mass index (BMI), more prior admissions, and exhibited greater depression and neuroticism. Long-term vs. short-term ill patients gained weight at the same rate (~2 kg/wk) and were equally likely to be weight restored by discharge (>75% reached BMI ≥ 19 kg/m² in both groups). At 6-month follow-up (n = 99), both groups had equivalent self-reported BMI, and depression, drive for thinness, body dissatisfaction, and bulimia scores. The only predictor of BMI ≥ 19 kg/m² at follow-up was discharge BMI. The likelihood of a BMI ≥ 19 kg/m² at follow-up was 5-fold higher for those with discharge BMI ≥ 19 kg/m². Few studies of long-term ill inpatients with AN have examined the impact of full weight restoration on short-term outcomes. This study supports the therapeutically optimistic stance that, regardless of illness duration, hospitalized patients with AN benefit from gaining weight to a BMI ≥ 19 kg/m².

Rehospitalization and "Revolving Door" in Anorexia Nervosa: Are There Any Predictors of Time to Readmission?

Objective: Anorexia nervosa (AN) is a severe psychiatric illness with multifactorial etiology and unsatisfactory treatment outcomes. Hospitalization is required for a substantial number of patients, and readmission (RA) commonly occurs. Some individuals need multiple hospitalizations sometimes over a short amount of time, thus, delineating the "revolving door" (RD) phenomenon. However, very little is known about readmissions and their frequency in AN. Therefore, we aimed to longitudinally investigate readmissions in AN in order to: (a) characterize patients with AN who need readmission (i.e., RA-AN), sometimes rapidly (RD-AN); (b) ascertain differences between RA-AN and non-RA-AN groups during baseline hospitalization; (c) investigate as to whether clinical or psychometric parameters worsened on RA; and (d) analyze predictors of time-to-readmission in AN. Methods: A total of 170 inpatients with AN were enrolled at their baseline hospitalization; all their subsequent rehospitalizations were recorded with a longitudinal design by which each patient has been observed for 3 years. Patients were classified as RD-AN if requiring a readmission <12 months since last discharge. Clinical characteristics were measured upon admission and discharge for each hospitalization, and at all time points, patients completed questionnaires assessing eating and general psychopathology, and body shape concerns. Results: Sixty-seven patients (39.4%) needed at least one readmission and 62 (92.5% of RA-AN) reported RD. Compared with non-RA-AN, those with RA-AN were younger, reported a shorter duration of illness, and were more frequently diagnosed with AN-BP. Also, greater severity of anxious and depressive symptoms and body shape concerns emerged in the RA-AN group. The outcome of baseline hospitalization did not differ between groups, and only depressive symptoms worsened at readmission. Shorter duration of AN and low weight gain during baseline hospitalization predicted early readmission but did not survive statistical control. In contrast, high scores on drive for thinness upon baseline hospital entry robustly predicted a shorter time to readmission even after statistical control. Discussion: Individuals with AN who require readmission do so over a short period notwithstanding a positive treatment outcome during their baseline hospitalization. Shorter time-to-readmission can be predicted mostly in case of marked drive for thinness and poor weight gain at baseline hospital admission.

Advances in Eating Disorders

Eating disorders (EDs) are a group of mental disorders characterized by an altered food intake and the presence of inappropriate behaviors for the control of body weight, framed as an excessive concern regarding one's weight and figure [...].

Relationship between eating disorder duration and treatment outcome: Systematic review and meta-analysis

OBJECTIVE

This systematic review and meta-analysis examine the contribution of duration to treatment outcome for eating disorders.

METHOD

Studies (n = 31) were identified that examined associations (r) between duration and 45 different outcomes. We were unable to extract r for seven studies (9 outcomes) and extracted r for 36 outcomes across 24 studies (2,349 participants). Indicators of treatment outcome were heterogeneous and thus a series of different meta-analyses, aimed at increasing homogeneity, were conducted.

RESULTS

First, we examined the average effect size for one primary eating disorder related outcome from each of the 24 studies. There was no association between duration and treatment outcome (r = .05, 95% CI: -.03:.13), with high heterogeneity. Second, we conducted three sub-group analyses to explore possible sources of heterogeneity (diagnosis: anorexia nervosa versus bulimia nervosa; nature of the outcome: binary versus continuous; or type of outcome: binary indicator of recovery, eating disorder psychopathology, weight gain). There was no significant moderation or associations between duration and outcome (ranging from .02-.08), with low to medium heterogeneity. Third, two stand-alone analyses examined outcomes related to weight gain (n = 8) and eating disorder psychopathology (n = 5), with nonsignificant rs of .23/-.06, respectively. High levels of heterogeneity were present.

DISCUSSION

Duration did not influence treatment outcome across any of our meta-analyses. Increasing homogeneity and power will allow more stable estimates of the impact of duration on outcome to be calculated; to this end, future treatment studies should include outcome related to weight gain (anorexia nervosa) and improvements in eating disorder psychopathology.

Self-admission to inpatient treatment in anorexia nervosa: Impact on healthcare utilization, eating disorder morbidity, and quality of life

OBJECTIVE

Little evidence exists concerning the optimal model of inpatient care for patients with longstanding anorexia nervosa (AN). Self-admission has been developed as a treatment tool whereby patients with a history of high healthcare utilization are invited to decide for themselves when brief admission is warranted. The aim of this study was to evaluate the impact of a self-admission program on healthcare utilization, eating disorder morbidity, health-related quality of life (HRQoL), and sick leave for patients with AN.

METHOD

In this cohort study, 29 participants with AN in a Swedish self-admission program were compared to 113 patients with longstanding illness but low previous utilization of inpatient treatment, matched based on age, illness duration, and body-mass index (BMI). Data on healthcare utilization, eating disorder morbidity, and sick leave were obtained from national population and eating disorder quality registers.

RESULTS

Participants displayed a >50% reduction in time spent hospitalized at 12-month follow-up, compared to nonsignificant changes in the comparison group. A sensitivity analysis comparing participants to a moderate-utilization comparison subgroup strengthened this observation. In contrast, the approach did not affect participants' BMI or eating disorder morbidity. Regarding HRQoL, mixed results were observed. In terms of sick leave, a beneficial but nonsignificant pattern was seen for participants.

DISCUSSION

These findings indicate that self-admission is a viable and helpful tool within a recovery model framework, even though it does not lead to symptom remission. In its proper context, self-admission could potentially transform healthcare from crisis-driven to pre-emptive, and promote autonomy for severely ill patients.

Effectiveness of intensive cognitive behavioral therapy in adolescents and adults with anorexia nervosa

OBJECTIVE

This study aimed to compare the effectiveness of an intensive treatment based on enhanced cognitive behavioral therapy (CBT-E) in adolescent and adult patients with anorexia nervosa.

METHODS

A total of 150 consecutive patients (74 adolescents and 81 adults) were admitted to a 20-week intensive CBT-E program (13 weeks of inpatient followed by 7 weeks of day-hospital treatment). All patients had responded poorly to previous outpatient treatments and were assessed at admission, end of treatment (EOT), and 20- and 60-week follow-ups.

RESULTS

About 70% of eligible patients began the program, and more than 85% completed it. Body mass index (BMI) in adults and BMI-for-age percentile in adolescents improved significantly from baseline to EOT, remained stable until 20-week follow-up, and slightly decreased from 20-week follow-up to 60-week follow-up, while remaining in the lower normal range. Eating disorder psychopathology, general psychopathology, and clinical impairment scores decreased significantly at EOT and showed only a slight increase from EOT to follow-ups. No difference was found between adolescent and adult patients in treatment acceptance, dropout, or any outcome measure.

DISCUSSION

These findings indicate that intensive CBT-E seems to be an effective treatment for severely ill adolescent and adult patients with anorexia nervosa.

Severe and enduring anorexia nervosa: No easy solutions

There is currently no evidence-based definition of severe and enduring anorexia nervosa (SE-AN) with which to reliably inform clinical practice and research. Indeed, data on the effect of AN severity and duration on treatment outcome are inconsistent. A large group of patients with SE-AN are repeatedly unsuccessfully managed with the available eating disorders treatments and have no access to adequate treatment for their illness. Cognitive behavioral therapy (CBT) adapted for SE-AN has been designed to enhance quality of life and reduce harm rather than promoting weight gain in such patients, and has had some success. However, a percentage of patients with SE-AN achieves remission, or at least returns to a normal weight range, with available evidence-based treatments for eating disorders, such as enhanced CBT (CBT-E). It would therefore be worth conducting a large-scale randomized controlled trial comparing CBT adapted for SE-AN with CBT-E to assess their relative acceptability; efficacy, including their effect on quality of life and medical stability; cost-effectiveness; and the treatment response moderators that might allow better matching of patients with SE-AN to a treatment oriented either to harm reduction or to change.

Severe and enduring anorexia nervosa: Update and observations about the current clinical reality

Several objectives underlie the current article. First, to review historical diagnostic issues and clinical strategies for treating SE-AN. Second, to provide an overview of recent evidence informed strategies and clinical innovations for the treatment of SE-AN. Third, based on the authors' collective clinical and research experience, we offer eight observations that we believe capture the current clinical experience of patients with SE-AN. Some of these observations represent empirically testable hypotheses, but all are designed to generate a meaningful discussion about the treatment of this group of individuals with eating disorders. Finally, we hope to call clinicians, scientists, professional organizations, advocates, and policy makers to action to attend to critical issues related to the care of individuals with SE-AN. We believe that an international discussion could clarify areas of need for these patients and identify opportunities for clinical innovation that would enhance the lives of individuals with SE-AN and their families.