Psychological treatment of eating disorders.

Significant progress has been achieved in the development and evaluation of evidence-based psychological treatments for eating disorders over the past 25 years. Cognitive behavioral therapy is currently the treatment of choice for bulimia nervosa and binge-eating disorder, and existing evidence supports the use of a specific form of family therapy for adolescents with anorexia nervosa. Important challenges remain. Even the most effective interventions for bulimia nervosa and binge-eating disorder fail to help a substantial number of patients. A priority must be the extension and adaptation of these treatments to a broader range of eating disorders (eating disorder not otherwise specified), to adolescents, who have been largely overlooked in clinical research, and to chronic, treatment-resistant cases of anorexia nervosa. The article highlights current conceptual and clinical innovations designed to improve on existing therapeutic efficacy. The problems of increasing the dissemination of evidence-based treatments that are unavailable in most clinical service settings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Anorexia nervosa and bulimia nervosa: I. Diagnosis and treatment

Disturbed eating behaviour and disturbed body experience are important features for the differential diagnosis of eating disorders from other disorders. Eating disorders occur mainly in young females. The one-year prevalence of anorexia nervosa is 0.4% and that of bulimia nervosa 1.5% among young females. To motivate patients for treatment it is important to discuss physical problems and the high risk of severe complications with them. It is difficult to motivate patients for treatment, because anorexia nervosa patients deny their illness and bulimia nervosa patients are ashamed and hide their disturbed eating behaviour. The treatment of anorexia nervosa consists of two partly overlapping phases: normalizing the eating pattern to improve weight restoration and psychotherapeutic treatment for underlying emotional problems. Family therapy is effective for patients younger than 18 years with a short duration of illness. Cognitive behaviour therapy is the most important form of treatment for bulimia nervosa.     

The potential value of integral membrane proteins in the vaccination of lambs against Haemonchus contortus

Cognitive-behavioral therapy (CBT) is applicable to all eating disorders but has been most intensively studied in the treatment of bulimia nervosa (BN). CBT is designed to alter abnormal attitudes about body shape and weight, replace dysfunctional dieting with normal eating habits, and develop coping skills for resisting binge eating and purging. CBT is effective in reducing all core features of BN and shows good maintenance of therapeutic improvement. Although superior to therapy with antidepressant drugs, CBT has not been shown to be consistently superior to alternative psychological treatments. Different hypotheses about CBT's mechanisms of action are discussed.     

Course and outcome in adolescent anorexia nervosa

OBJECTIVE: To investigate course, outcome, and psychiatric comorbidity in adolescent anorexia nervosa by repeated follow-up assessment. METHOD: Thirty-four subjects (88%) of an original sample of 39 inpatients were followed up personally 3 and 7 years after discharge and classified according to DSM-III-R eating disorder categories. Standardized psychometric instruments were used to assess specific eating disorder symptoms, concomitant general psychopathology, and comorbid psychiatric diagnoses. RESULTS: After 7 years, 1 patient (3%) had anorexia nervosa, 4 patients (12%) bulimia nervosa, and 10 patients (29%) eating disorder not otherwise specified (EDNOS). Anxiety disorders (41%) and affective disorders (18%) were the most prevalent comorbid psychiatric disorders. Concomitant general psychopathology was significantly related to the outcome of the eating disorder. CONCLUSIONS: According to our results, the majority of former adolescent anorexic inpatients had shown substantial improvement in their eating disorders symptomatology after 7 years. Patients with persisting eating disorders mostly suffered from restrictive symptoms. The prevalence and distribution of psychiatric comorbidity were similar to those of adult-onset anorexia nervosa. Subjects with a worse outcome of the eating disorder also displayed higher levels of general psychopathology.     

Personality features and expressed concerns of adolescents with eating disorders

Differences between adolescent females diagnosed with either anorexia nervosa (n = 26) or bulimia nervosa (n = 30) were investigated using the Millon Adolescent Personality Inventory (MAPI; Millon, Green, & Meagher, 1982). About half of the total sample displayed an inhibited (avoidant) personality style. Anorexics scored higher than did bulimics on the Respectful (Compulsive) personality scale. Expressed concerns over self-concept, personal esteem, and sexual acceptance were common in the total sample. The behavioral correlates of MAPI score profiles indicated that few bulimics, and none of the anorexics, were likely to exhibit problems with impulse control, societal conformity, and scholastic achievement. Results are compared with clinical observations of adolescents with eating disorders and findings for adult eating-disordered samples.     

Managed care or mangled care?: Treating eating disorders in the current healthcare climate.

The challenge of treating patients with eating disorders, together with the increasing intrusion of 3rd-party payers into the healthcare system, presents a dual dilemma for mental health clinicians. Although there are potent treatments for patients with anorexia nervosa and bulimia nervosa, most therapies require substantially more than a brief number of sessions in order to be effective. This article provides guidelines to clinicians who treat patients with eating disorders under the constraints of managed care. Practical suggestions for treatment approaches as well as strategies for negotiating with 3rd-party payers are offered to assist clinicians in providing efficient, effective, and compassionate care to patients with eating disorders. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Cognitive treatments for eating disorders.

Cognitive-behavioral therapy (CBT) is applicable to all eating disorders but has been most intensively studied in the treatment of bulimia nervosa (BN). CBT is designed to alter abnormal attitudes about body shape and weight, replace dysfunctional dieting with normal eating habits, and develop coping skills for resisting binge eating and purging. CBT is effective in reducing all core features of BN and shows good maintenance of therapeutic improvement. Although superior to therapy with antidepressant drugs, CBT has not been shown to be consistently superior to alternative psychological treatments. Different hypotheses about CBT's mechanisms of action are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Multifactorial assessment of bulimia nervosa.

Investigated a multifactorial approach to the assessment of bulimia nervosa by means of hierarchical factor analysis. 245 bulimia nervosa patients and 68 patients with either anorexia nervosa or eating disorders not otherwise specified were administered a self-report battery that was organized into 21 dimensions relevant to eating disorder patients. When dimensions from this battery were subjected to hierarchical factor analysis, support for bulimia nervosa as a unique diagnostic category was obtained. However, the emergence of 3 secondary factors and 6 primary factors suggests that bulimia nervosa can also be described more complexly. The emergence of a multifactorial model of bulimia nervosa that incorporates several existing unidimensional models suggests the potential for both divergent and complicated clinical presentation in bulimia nervosa patients. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Childhood abuse, body image disturbance, and eating disorders

Studies have suggested that women who experience child sexual abuse are at risk for developing symptoms related to anorexia nervosa and bulimia. The purpose of the present study was to examine the relationships among childhood sexual and physical abuse, body image disturbance, and eating disorder symptomatology. Of 670 female college students screened for childhood abuse, 29 sexually abused, 32 physically abused, and 29 nonabused women completed measures of eating disorder symptoms, psychological factors thought to be related to eating disorders, and body image distortion. Contrary to previous reports, there was no evidence that child sexual or physical abuse was associated with the development of body image disturbance. Furthermore, the results did not support the hypothesis that child sexual and physical abuse are related to eating disorder symptomatology. It is suggested that subjects who are victims of child sexual abuse and who are receiving psychotherapy manifest higher rates of a number of different types of psychopathology, including eating disorders.     

Disordered eating and substance use in an epidemiological sample: II. Associations within families.

This study investigated familial associations of disordered eating (DE) with substance use and substance use disorders (SU/SUDs) in a community-based sample of 620 adolescent girls, their 310 mothers, and 299 fathers. Female participants completed structured interviews of lifetime anorexia nervosa, bulimia nervosa, binge eating disorder, and SU/SUD; daughters also completed a self-report measure of current DE attitudes and behaviors. Fathers completed interviews assessing lifetime SUD. Evaluation of independent and combined associations of mothers' bulimic eating disturbance (ED) and parents' SUDs with daughters' DE/EDs and SU/SUDs revealed links between mothers' ED and daughters' DE but no relationship between EDs and SU/SUDs across generations. These results suggest that these problems are not cross-transmitted within families and suggest that the addiction model of eating disorders may be simplistic. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A comparison of ever-married and never-married women with anorexia nervosa or bulimia nervosa

OBJECTIVE: The results of the scant research on anorexia nervosa and marriage suggest that married anorexics may exhibit more severely disordered eating. However, past research has not controlled for the greater age of married versus unmarried anorexics, and very little research has been conducted on marriage and women with bulimia nervosa. We investigated differences in disordered eating and clinical traits between ever-married and never-married women with anorexia nervosa or bulimia nervosa and statistically controlled for age. METHOD: Adult women ages 20-45, who were assessed in an outpatient eating disorders clinic and diagnosed with anorexia nervosa (n = 91) or bulimia nervosa (n = 223), completed several measures of disordered eating and related traits at the point of initial evaluation. RESULTS: In simple comparisons, ever-married women differed from their never-married peers with regard to several indices of symptom history and severity. However, after controlling for age, ever-married women differed only with regard to an earlier onset of menarche and, for women with bulimia nervosa, an earlier onset of sexual intercourse. DISCUSSION: Results are discussed with regard to possible explanation and directions for future research.     

Annual treatment rates and estimated incidence of eating disorders in Austria

BACKGROUND: At present, the prevalence and incidence of eating disorders in Austria is unknown; not even rough estimates of countrywide annual treatment rates are available. AIMS: To assess the number of patients in Austria with eating disorders currently under treatment and to compare this rate with the estimated prevalence and incidence of eating disorders, thus providing an estimate of unrecorded cases and the appropriateness of health care for these disorders. METHODS: The number of patients being treated in major out-patient and in-patient facilities was assessed by questionnaires. Prevalence and incidence rates in Austria were estimated by extrapolation of epidemiological data from comparable Western countries to Austrian figures from the most recent population census in 1991. RESULTS: Altogether 1075 patients were being treated in 1994 at 26 institutions, including all specialized centres, pediatric and psychiatric university hospitals. Surprisingly, the annual treatment rates for anorexia and bulimia nervosa were equal. There is a considerable discrepancy between these treatment figures and prevalence/incidence estimates (in absolute numbers): the estimated anorexia nervosa point prevalence is about 2500 girls aged 15-20 years, whilst a minimum of 4400 girls suffer from subclinical eating disorders, and there are about 6500 bulimia nervosa cases in young women aged 20-30 years. The incidence might be about 600 new onset cases per year for anorexia, and about 870 for bulimia nervosa. The size of the problem (lifetime prevalence) may comprise at least 36,000 women with bulimia nervosa. CONCLUSIONS: Eating disorders pose a major public health problem for women in Austria. It is unlikely that the vast majority of unrecorded cases was treated in private practice or in hospitals which failed to respond to our questionnaire. The discrepancy between annual treatment rates and prevalence/incidence estimates points to a lack of specialized eating disorder units in Austria.     

Relation of early menarche to depression, eating disorders, substance abuse, and comorbid psychopathology among adolescent girls.

This prospective study tested whether early menarche partially accounts for the increases in depression, eating pathology, substance abuse, and comorbid psychopathology that occur among adolescent girls, with structured interview data from a community sample (N?=?496). Early menarche (prior to 11.6 years) was associated with elevated depression, substance abuse, and "any" disorder but did not confer increased risk for anorexia nervosa, bulimia nervosa, or binge eating disorder. Although there was significant comorbidity across all three classes of pathology, early menarche was associated only with comorbid depression and substance abuse. Results provide partial support for the assertion that early menarche is a general risk factor for psychopathology among adolescent girls but suggest that this risk may not apply to certain disorders and that the effects are modest in size. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Interview for the Diagnosis of Eating Disorders—IV: Application to DSM–IV diagnostic criteria.

The authors describe the psychometric development of the fourth revision of the Interview for Diagnosis of Eating Disorders (IDED–IV). The IDED–IV was tested for the purpose of differential diagnosis of eating disorders, that is, anorexia nervosa, bulimia nervosa, and binge eating disorder. Evidence for internal consistency was found for symptom ratings relevant to anorexia nervosa, bulimia nervosa, and binge eating disorder. Support was found for the content validity as well as the concurrent and discriminant validity of the IDED–IV. Finally, tests of the interrater agreement for differential diagnosis of eating disorders found the IDED–IV to yield very reliable data. The authors conclude that the IDED–IV yields sufficiently reliable and valid data to be used for determining diagnoses in research studies and clinics specializing in the treatment of eating disorders. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of cognitive style in bulimia nervosa and depression

This study investigated the global and specific cognitive style associated with bulimia nervosa. Three groups of women (women with bulimia nervosa, women with major depression, and controls) completed measures of eating disorder severity, depression, dysfunctional cognitions and irrational beliefs. The control group was found to report significantly lower levels of cognitive distortions and irrational beliefs overall than both women with bulimia nervosa and women with depression. However, no difference was found between the latter two groups. Furthermore, the pattern of individual cognitions and beliefs was exactly the same. When depression was statistically controlled, cognitive style no longer differentiated between the control group and two clinical groups. These results have implications for improving the effectiveness of cognitive behaviour therapy for bulimia nervosa.     

The demand for eating disorder care. An epidemiological study using the general practice research database

BACKGROUND: An epidemiological study of anorexia nervosa and bulimia nervosa in primary care was performed using the General Practice Research Database (GPRD). METHOD: The GPRD was screened between 1988 and 1994 for newly diagnosed cases of anorexia nervosa and bulimia nervosa. The validity of the computer diagnosis was established by obtaining clinical details from a random sample of the general practitioners (GPs). RESULTS: Incidence rates for detection of cases by GPs in 1993 was 4.2 per 100,000 population for anorexia nervosa, and 12.2 per 100,000 for bulimia nervosa. The relative risks of females to males was 40:1 for anorexia nervosa and 47:1 for bulimia nervosa. A threefold increase in the recording of bulimia nervosa was found from 1988 to 1993. Eighty per cent of anorexia nervosa cases and 60% of bulimia nervosa cases were referred to secondary care. CONCLUSION: There is a continuing expansion of service need for bulimia nervosa. The majority of cases of eating disorders are referred to secondary services. There is scope for more effective management of bulimia nervosa in primary care.     

Patterns and predictors of recovery in anorexia nervosa and bulimia nervosa

OBJECTIVE: The purpose of this study was to assess the course and outcome of anorexia nervosa and bulimia nervosa at 1 year in a large cohort of women with eating disorders. METHOD: A prospective, naturalistic, longitudinal design was used to map the course of 225 women with anorexia nervosa, bulimia nervosa, and mixed anorexia and bulimia nervosa. Structured interviews were conducted quarterly. Follow-up data are presented in terms of patterns of recovery, clinical features predictive of time to recovery, and the role of comorbid disorders as fixed predictors. RESULTS: The recovery rate of bulimics was significantly better than that of anorexic or mixed subjects, yet nearly half the anorexic and mixed subjects no longer met full DSM-III-R criteria for at least 8 consecutive weeks during the first year of follow-up. Percent ideal body weight and type of eating disorder were significantly associated with outcome. CONCLUSIONS: Our findings suggest that the diagnosis of anorexia nervosa has severe implications.     

Gastrointestinal and nutritional aspects of eating disorders

Anorexia nervosa (AN) and bulimia nervosa (BN) are potentially fatal eating disorders which primarily affect adolescent females. Differentiating eating disorders from primary gastrointestinal (GI) disease may be difficult. GI disorders are common in eating disorder patients, symptomatic complaints being seen in over half. Moreover, many GI diseases sometimes resemble eating disorders. Inflammatory bowel disease, acid peptic diseases, and intestinal motility disorders such as achalasia may mimic eating disorders. However, it is usually possible to distinguish these by applying the diagnostic criteria for eating disorders and by obtaining common biochemical tests. The primary features of AN are profound weight loss due to self starvation and body image distortion; BN is characterized by binge eating and self purging of ingested food by vomiting or laxative abuse. GI complications in eating disorders are common. Recurrent emesis in BN is associated with dental abnormalities, parotid enlargement, and electrolyte disturbances including metabolic alkalosis. Hyperamylasemia of salivary origin is regularly seen, but may lead do an erroneous diagnosis of pancreatitis. Despite the weight loss often seen in eating disorders, serum albumin, cholesterol, and carotene are usually normal. However, serum levels of trace metals such as zinc and copper often are depressed, and hypophosphatemia can occur during refeeding. Patients with eating disorders frequently have gastric emptying abnormalities, causing bloating, postprandial fullness, and vomiting. This usually improves with refeeding, but sometimes treatment with pro-motility agents such as metoclopromide is necessary. Knowledge of the GI manifestations of eating disorders, and a high index of suspicion for one condition masquerading as the other, are required for the correct diagnosis and management of these patients.     

Reduced protein models and their application to the protein folding problem

It has been well-recognized that starvation in anorexia and bulimia nervosa causes endocrine disturbances. Such disturbances may help understand why many people with eating disorders cannot easily reverse their illness since people with eating disorders often enter a downward spiraling circle with malnutrition sustaining and perpetuating the desire for more weight loss and dieting. Symptoms, such as obsessions and dysphoric mood, and altered appetitive behavior, may be exaggerated by neuropeptide alterations and thus contribute to this downward spiral. While neuropeptide disturbances do not appear to be a permanent feature or cause or anorexia nervosa, these disturbances are strongly entrenched, and are not easily corrected by improved nutrition or short-term weight normalization. This suggests that therapy should be sustained for months after nutritional normalization.     

Biological aspects of anorexia nervosa and bulimia nervosa.

In this article, we review biological factors relevant to the understanding of anorexia nervosa and bulimia nervosa. We consider the physical presentation of these disorders; the medical complications of starvation, binging, and purging; and the cognitive and behavioral effects of starvation. We also review neurophysiological and neurochemical aspects of these illnesses and their biological treatments. These biological variables are most prominent in the perpetuation of the eating disorders. Effective treatment approaches must consider psychosocial as well as biological variables to be optimally effective. (PsycINFO Database Record (c) 2010 APA, all rights reserved)