Anorexia nervosa in adolescents: challenges remain

Depressive symptoms and weight change in inpatients with anorexia nervosa: A cross-lagged panel model

OBJECTIVE

Anorexia nervosa (AN) is marked by a high rate of comorbid depression, which raises the question whether depressive symptoms may adversely affect treatment outcome. Thus, we examined whether depressive symptoms at admission would predict weight change from admission to discharge in a large sample of inpatients with AN. In addition, we also explored the reverse direction, that is, whether body mass index (BMI) at admission would predict changes in depressive symptoms.

METHODS

A sample of 3011 adolescents and adults with AN (4% male) who received inpatient treatment at four Schoen Clinics was analyzed. Depressive symptoms were measured with the Patient Health Questionnaire-9.

RESULTS

BMI significantly increased and depressive symptoms significantly decreased from admission to discharge. BMI and depressive symptoms were unrelated at admission and discharge. Higher BMI at admission predicted smaller decreases in depressive symptoms and higher depressive symptoms at admission predicted larger weight gain. The latter effect, however, was mediated by longer length of stay.

CONCLUSION

Results indicate that depressive symptoms do not adversely affect weight gain during inpatient treatment in persons with AN. Instead, higher BMI at admission is predictive of smaller improvements in depressive symptoms but this effect seems to be negligible in terms of clinical relevance.

Weight suppression and body mass index at admission interactively predict weight trajectories during inpatient treatment of anorexia nervosa

OBJECTIVE

Weight suppression refers to the difference between an individual's current and highest body weight at their current height. Higher weight suppression has been found to predict weight gain in both non-clinical samples and patients with eating disorders. Few studies also have reported interactive effects between weight suppression and current body mass index when predicting weight gain.

METHODS

In this retrospective study, we analyzed clinical records of inpatients with anorexia nervosa (N = 2191, 97% female) and tested whether weight suppression and body mass index at admission would interactively predict different weight trajectories during treatment.

RESULTS

Body weight increased non-linearly during treatment. Higher weight suppression predicted larger weight gain but the nature of this effect depended on body mass index at admission. In patients with a relatively low body weight at admission, those with high weight suppression started at a lower weight and showed a nearly linear and steeper weight gain than those with low weight suppression. In patients with a relatively high body weight at admission, those with high weight suppression started at a similar weight and showed a non-linear and larger weight gain than those with low weight suppression.

CONCLUSION

Findings further support that weight suppression is a robust predictor of weight gain in addition to-and in interaction with-current body weight. As weight suppression can easily be assessed at admission, it may help to anticipate treatment course and outcome in patients with anorexia nervosa.

Effects of interval-based inpatient treatment for anorexia nervosa: An observational study

OBJECTIVE

After inpatient treatment for anorexia nervosa (AN), many patients relapse and need to be readmitted. To obtain a sustained improvement, a pre-planned multistep inpatient procedure might help to improve the patient's skills in dealing with symptoms and transdiagnostic problems, thus decreasing symptoms of AN. However, no data have been reported for such interval treatment yet. Therefore, this study examined effects of interval treatment in inpatients with AN.

METHOD

Data of adult women with AN (N = 304) who received inpatient treatment and either received interval treatment (n = 179) or not (n = 125) were analyzed. Of these, 225 patients completed a follow up measurement after an average of 25 months. Treatment outcome variables were body mass index and subscales of the Eating Disorder Inventory-2 at admission, discharge, and follow up.

RESULTS

Across measurements, the interval treatment group had larger increases in body mass index and larger decreases in drive for thinness and binge/purge symptoms than the no interval treatment group. These differences did not seem to be driven by longer treatment duration.

DISCUSSION

Our data suggest that interval treatment for AN is effective and may even be superior to conventional single inpatient treatment. Given the observational nature of this study, however, controlled studies are necessary to corroborate these findings.

"I found it daunting": An exploration of educational needs and experiences of mental health student nurses working with children and adolescents with eating disorders

WHAT IS KNOWN ABOUT THE SUBJECT?: A therapeutic relationship with a professional who displays an informed approach has a positive effect on outcomes for young people presenting with an eating disorder. There is a dearth of research available on the student mental health nurse experience of working with young people with an eating disorder both internationally and from the Republic of Ireland. Within this limited literature, nursing students were found to hold more negative perceptions towards this group than more experienced clinicians. The causes of eating disorders are complex, which make education and support to understand the individual with an eating disorder essential. Within the Republic of Ireland, child and adolescent mental health historically has received very little attention in the undergraduate mental health nursing curriculum. WHAT DOES THE STUDY ADD TO EXISTING KNOWLEDGE?: Findings from this study recommend that a set of guidelines are made available for students to feel more confident in their role. It is suggested that this resource would include the therapeutic skills to engage the young person with an eating disorder. A specialist clinical placement has been identified as the most appropriate time to consider the development of a study day or days to facilitate learning of the skills and therapeutic techniques to work with adolescents. Application of these skills would occur within the clinical learning environment under supervision and guidance of the clinical preceptor. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Specialized training for student mental health nurses working with this group will enhance confidence and competence levels in forming therapeutic relationships, thereby improving outcomes for those attending the services. Better student experience may also enhance future nursing recruitment into this area. Students need additional support in managing these often complex and ambivalent presentations and their own fears or stigma around people with an eating disorder. This is recommended as taking the form of reflective practice during the placement. There is a need for nursing management to support nurses in their role as preceptor. This would involve protected time for preceptors to engage the student nurse in clinical education and reflective practice. ABSTRACT: Introduction There is limited attention given to child and adolescent mental health in the undergraduate mental health nursing curriculum within the Republic of Ireland. There is a dearth of research available on specifically the student mental health nurse experience both internationally and from the Republic of Ireland. Aim To explore factors that impact on the experience of mental health student nurses working with adolescents who present with eating disorders. Method This qualitative descriptive study was conducted through individual semi-structured interviews with n = 4 mental health student nurses. Data were then subjected to a schematic content analysis. Results The participants experienced developing therapeutic relationships with this group as a challenging process. They believed that the theoretical component of the undergraduate programme facilitated them in their understanding but did not prepare them to engage therapeutically with these adolescents. Discussion Preceptors are identified as the main source of support but improvements to the clinical learning environment would enhance the learning experience. Implications for practice Support for the role of the preceptor in the specialist clinical setting in the form of training and protected time to engage students in clinical education and reflection was suggested as a method to enhance the clinical learning environment.

Short-term metreleptin treatment of patients with anorexia nervosa: rapid on-set of beneficial cognitive, emotional, and behavioral effects

To examine the hypothesis that normalization of low circulating leptin levels in patients with anorexia nervosa ameliorates hyperactivity, three seriously ill females with hyperactivity were treated off-label with metreleptin (recombinant human leptin) for up to 14 days. Drive for activity, repetitive thoughts of food, inner restlessness, and weight phobia decreased in two patients. Surprisingly, depression improved rapidly in all patients. No serious adverse events occurred. Due to obvious limitations of uncontrolled case series, placebo-controlled clinical trials are mandatory to confirm the observed rapid onset of beneficial effects. Our findings suggest an important role of hypoleptinemia in the mental and behavioral phenotype of anorexia nervosa.

Less symptomatic, but equally impaired: Clinical impairment in restricting versus binge-eating/purging subtype of anorexia nervosa

OBJECTIVE

This study investigated subtype differences in eating disorder-specific impairment in a treatment-seeking sample of individuals with anorexia nervosa (AN).

METHOD

The Clinical Impairment Assessment (CIA) and the Eating Disorder Examination-Questionnaire (EDE-Q) were administered to 142 patients. Of these, 54.9% were classified as restricting type (AN-R) and 45.1% were classified as binge-eating/purging type (AN-B/P) based on an average weekly occurrence of binge eating and/or purging episodes (≥4 episodes/28days).

RESULTS

Individuals with AN-B/P exhibited higher levels of core ED psychopathology (dietary restraint, eating concern, shape/weight concerns) in addition to the expected higher frequency of binge/purge episodes. No significant differences existed between AN subtypes in the severity of ED-related impairment. Weight/shape concerns and binge eating frequency significantly predicted level of impairment. Differential associations were observed between the type of ED pathology that significantly contributed to impairment according to AN subtype.

DISCUSSION

Although those with AN-B/P displayed higher levels of core attitudinal and behavioral ED pathology than AN-R, no significant differences in ED-specific impairment were found between AN subtypes. Eating disorder-related impairment in AN was not related to the severity of underweight or purging behaviors, but was uniquely and positively associated with weight/shape concerns and binge eating frequency.

Inpatient treatment has no impact on the core thoughts and perceptions in adolescents with anorexia nervosa

AIM

Examine changes in core perceptions and thoughts during the weight restoration phase of inpatient treatment for adolescents with anorexia nervosa.

METHOD

Forty-four adolescents with anorexia nervosa consecutively admitted (2009-2012) to an inpatient paediatric-psychiatric unit specializing in eating disorders. The programme consisted of a complete inpatient intervention combining weight restoration by structured supervised meals with individual and group cognitive-behavioural therapy, parental training/family intervention and educational activities, followed by a half-way day-treatment weight-stabilizing phase and progressive reintroduction to the community. The study focused on changes from hospital admission to discharge in patients' responses to self-report questionnaires on eating disorder symptoms, depression, anxiety and suicidal ideation.

RESULTS

No significant changes in core anorexic thoughts and perceptions as Body dissatisfaction, Drive for thinness, Weight concern and Shape concern were noted. However, a reduction in the general severity of eating disorder symptoms (including Restraint and Eating concern) was observed, mainly related to the treatment structure. Levels of depression significantly decreased but remained within pathological range. We also found a concerning increase in suicidal ideation not correlated with a concomitant increase in depressive symptomatology.

CONCLUSIONS

Inpatient treatment of anorexia nervosa in adolescents does not significantly modify core anorexic thoughts and perceptions. This may explain the high relapse rates. Changes in core beliefs may be crucial for recovery and prevention of relapse in anorexia nervosa at this critical age. This study may have clinical implications for the development of better treatment strategies to target the gap between disturbed thoughts and distorted perceptions - the core aspects of anorexia nervosa and physical recovery during and after the weight restoration phase.

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.

Homeostasis in anorexia nervosa

Brainstem and hypothalamic “orexigenic/anorexigenic” networks are thought to maintain body weight homeostasis in response to hormonal and metabolic feedback from peripheral sites. This approach has not been successful in managing over- and underweight patients. It is suggested that concept of homeostasis has been misinterpreted; rather than exerting control, the brain permits eating in proportion to the amount of physical activity necessary to obtain food. In support, animal experiments have shown that while a hypothalamic “orexigen” excites eating when food is abundant, it inhibits eating and stimulates foraging when food is in short supply. As the physical price of food approaches zero, eating and body weight increase without constraints. Conversely, in anorexia nervosa body weight is homeostatically regulated, the high level of physical activity in anorexia is displaced hoarding for food that keeps body weight constantly low. A treatment based on this point of view, providing patients with computerized mealtime support to re-establish normal eating behavior, has brought 75% of patients with eating disorders into remission, reduced the rate of relapse to 10%, and eliminated mortality.