Evelyn Attia

Should Amenorrhea Be a Diagnostic Criterion for Anorexia Nervosa

OBJECTIVE The removal of the amenorrhea criterion for anorexia nervosa (AN) is being considered for the fifth edition of The Diagnostic and Statistical Manual (DSM-V). This article presents and discusses the arguments for maintaining as well as those for removing the criterion. METHOD The psychological and biological literatures on the utility of amenorrhea as a distinguishing diagnostic criterion for AN and as an indicator of illness severity are reviewed. RESULTS The findings suggest that the majority of differences among patients with AN who do and do not meet the amenorrhea criterion appear largely to reflect nutritional status. Overall, the two groups have few psychological differences. There are mixed findings regarding biological differences between those with AN who do and do not menstruate and the relationship between amenorrhea and bone health among patients with AN. DISCUSSION Based on these findings, one option is to describe amenorrhea in DSM-V as a frequent occurrence among individuals with AN that may provide important information about clinical severity, but should not be maintained as a core diagnostic feature. The possibilities of retaining the criterion or eliminating it altogether are discussed.

The slippery slope: prediction of successful weight maintenance in anorexia nervosa

BACKGROUND Previous research has found that many patients with anorexia nervosa (AN) are unable to maintain normal weight after weight restoration. The objective of this study was to identify variables that predicted successful weight maintenance among weight-restored AN patients. METHOD Ninety-three patients with AN treated at two sites (Toronto and New York) through in-patient or partial hospitalization achieved a minimally normal weight and were then randomly assigned to receive fluoxetine or placebo along with cognitive behavioral therapy (CBT) for 1 year. Clinical, demographic and psychometric variables were assessed after weight restoration prior to randomization and putative predictors of successful weight maintenance at 6 and 12 months were examined. RESULTS The most powerful predictors of weight maintenance at 6 and 12 months following weight restoration were pre-randomization body mass index (BMI) and the rate of weight loss in the first 28 days following randomization. Higher BMI and lower rate of weight loss were associated with greater likelihood of maintaining a normal BMI at 6 and 12 months. An additional predictor of weight maintenance was site; patients in Toronto fared better than those in New York. CONCLUSIONS This study found that the best predictors of weight maintenance in weight-restored AN patients over 6 and 12 months were the level of weight restoration at the conclusion of acute treatment and the avoidance of weight loss immediately following intensive treatment. These results suggest that outcome might be improved by achieving a higher BMI during structured treatment programs and on preventing weight loss immediately following discharge from such programs.

Behavioral management for anorexia nervosa.

A 23-year-old woman with anorexia nervosa visits her internist to discuss possible admission to an inpatient behavioral-treatment program. Behavioral therapy for anorexia nervosa includes direct supervision of eating, establishment of weight-gain goals, and implementation of contingencies if goals are not achieved. The most important adverse effect of such programs is the risk of the refeeding syndrome, a rare but potentially life-threatening metabolic disorder.

Anorexia Nervosa: Current Status and Future Directions

Anorexia nervosa (AN) is a serious mental illness categorized by a failure to maintain a minimally normal weight, a fear of gaining weight or becoming fat, and preoccupations about body shape or weight. AN is associated with significant morbidity and a mortality rate as high as that seen in any psychiatric illness. Biological factors, including genetic predisposition, appear to play a role in the development of AN. Treatment is challenging both because interventions with clear empirical support have not been identified and because individuals affected by AN are typically reluctant to undergo weight restoration. Preliminary studies suggest that family-based treatment may be useful for younger patients with AN. Treatment development for adults with AN and pursuit of neurobiological correlates of AN remain high-priority research areas.

The Clinical Significance of Amenorrhea as a Diagnostic Criterion for Anorexia Nervosa

OBJECTIVE Amenorrhea is a DSM-IV criterion for the diagnosis of anorexia nervosa (AN). Several studies have reported few differences between patients who meet the full DSM-IV criteria for AN and those who meet all but the amenorrhea criterion. Although this suggests that the absence of menses does not provide critical diagnostic information, many of these studies are limited by small sample sizes. This study aims to examine the clinical utility of amenorrhea as a criterion for the diagnosis of AN. METHOD A chart review was conducted of 240 consecutive patients admitted for inpatient treatment at the NY State Psychiatric Institute from 1993 to 2006. Menstrual data were collected from the Eating Disorder Examination conducted upon admission. Independent samples t-tests were performed to evaluate differences in clinical variables, including age, lifetime lowest body mass index (BMI), admission and discharge BMI, previous number of hospitalizations, duration of illness, Beck Depression Inventory total score, Beck Anxiety Inventory total score, and Eating Disorder Examination subscale scores. RESULTS The amenorrheic and menstruating groups differed significantly only on lowest lifetime BMI and admission BMI, with individuals with amenorrhea having lower BMIs on both measures. CONCLUSION These results indicate that amenorrhea does not distinguish between groups on a number of important measures of clinical severity. It may be that amenorrhea reflects weight and nutritional status, rather than providing useful diagnostic information. Future studies are needed to examine the potential prognostic value of menstrual status.

From DSM-IV to DSM-5: changes to eating disorder diagnoses.

Purpose of review This article reviews the modifications to eating disorders that appear in the ‘Feeding and Eating Disorders’ chapter of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). These modifications include the addition of three disorders (avoidant/restrictive food intake disorder, rumination disorder, and pica) previously described in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) section ‘Feeding and Eating Disorders of Infancy or Early Childhood’; clarifications and modifications to anorexia nervosa and bulimia nervosa; and the inclusion of binge eating disorder as a formal diagnosis. Recent findings Research suggests that the majority of individuals seeking treatment for an eating disorder are classified as eating disorder not otherwise specified based on DSM-IV criteria. Using DSM-5 criteria, many of these individuals will be reassigned to a diagnosis with greater clinical utility. A large body of research also supports the inclusion of binge eating disorder as a formal diagnosis. Summary The changes to eating disorders, recommended by the Eating Disorders Work Group, aim to clarify existing criteria and to decrease the frequency with which individuals are assigned to the heterogeneous residual category, eating disorder not otherwise specified, which provides little clinical utility.

Fear of food as a treatment target: Exposure and response prevention for anorexia nervosa in an open series†

OBJECTIVE Anorexia nervosa (AN) is a severe mental illness with high rates of relapse and rehospitalization. New treatment approaches are needed. We aimed to evaluate the potential utility of addressing eating-related fear in the treatment of AN using psychotherapy techniques known to be effective in the treatment of anxiety disorders and obsessive compulsive disorder, namely exposure therapy and response prevention. METHOD We developed a brief treatment intervention for AN (AN-EXRP) and evaluated its effects in an open series of nine individuals with AN towards the end of acute weight restoration. We focused on eating behavior as the primary outcome, as it is related both to anxiety and to longer term course. RESULTS Change in anxiety with AN-EXRP was associated with greater caloric intake. DISCUSSION These findings support the anxiety-centered model of AN and suggest the potential utility of further developing this treatment approach.

Is anorexia nervosa a delusional disorder? An assessment of eating beliefs in anorexia nervosa.

Anorexia nervosa (AN) is a serious mental illness, characterized in part by intense and irrational beliefs about shape and weight, including fear of gaining weight. Although these beliefs are considered to be a diagnostic criterion for the illness, they have not been systematically characterized. This study used the Brown Assessment of Beliefs Scale (BABS) to identify the dominant belief that interfered with eating in a sample of underweight patients with AN (N = 25). The degree of insight was assessed quantitatively. The majority of participants (68%) spontaneously reported a dominant belief consistent with fear of gaining weight or becoming fat. Twenty percent of patients were categorized as delusional. The total score on the BABS was significantly correlated with the drive-for-thinness subscale of the Eating Disorders Inventory (EDI) (r = 0.41, p = 0.04), but did not correlate with overall measures of AN severity (body mass index [BMI], duration of illness, lowest BMI, other subscales of the EDI, or total EDI score). These findings highlight the centrality of fear of fat in AN and suggest the possibility that there is a subgroup of patients whose concerns about their weight reaches delusional proportions. This subpopulation of patients warrants further study, since patients with more delusional beliefs may have a form of AN that is more refractory to treatment.

Olanzapine versus placebo for out-patients with anorexia nervosa

BACKGROUND Anorexia nervosa (AN) is a serious psychiatric illness associated with significant morbidity and mortality. There is little empirical support for specific treatments and new approaches are sorely needed. This two-site study aimed to determine whether olanzapine is superior to placebo in increasing body mass index (BMI) and improving psychological symptoms in out-patients with AN. METHOD A total of 23 individuals with AN were randomly assigned in double-blind fashion to receive olanzapine or placebo for 8 weeks together with medication management sessions that emphasized compliance. Weight, other physical assessments and measures of psychopathology were collected. RESULTS End-of-treatment BMI, with initial BMI as a covariate, was significantly greater in the group receiving olanzapine [F(1, 20)=6.64, p=0.018]. Psychological symptoms improved in both groups, but there were no statistically significant group differences. Of the 23 participants, 17 (74%) completed the 8-week trial. Participants tolerated the medication well with sedation being the only frequent side effect and no adverse metabolic effects were noted. CONCLUSIONS This small study suggests that olanzapine is generally well tolerated by, and may provide more benefit than placebo for out-patients with AN. Further study is indicated to determine whether olanzapine may affect psychological symptoms in addition to BMI.

Confronting fear using exposure and response prevention for anorexia nervosa: A randomized controlled pilot study

OBJECTIVE Anorexia nervosa (AN) is a severe illness with high rates of relapse. Exposure and Response Prevention for AN (AN-EXRP) is a new approach that specifically addresses maladaptive eating behavior by targeting eating-related fear and anxiety. The aim of this study was to evaluate AN-EXRP as an adjunctive strategy to improve eating behavior during weight restoration, at a pivotal moment when treatment goals shift toward relapse prevention. METHOD A randomized controlled trial was conducted to compare AN-EXRP with a comparison condition, Cognitive Remediation Therapy (CRT). Hospitalized patients with AN (n = 32) who had achieved weight restoration to a BMI > 18.5 kg/m(2) received 12 sessions of either AN-EXRP or CRT. Outcome was assessed by change in caloric intake in an objective assessment of eating behavior. RESULTS The average test meal caloric intake of participants who received AN-EXRP increased from 352 ± 263 kcal at baseline to 401 ± 215 kcal post-treatment, while that of participants who received CRT decreased from 501 ± 232 kcal at baseline to 424 ± 221 kcal post-treatment [t(28) = 2.5, p = .02]. Improvement in intake was significantly associated with improvement in eating-related anxiety (Spearmans ρ = 0.40, p = .03). DISCUSSION These data demonstrate that AN-EXRP, compared to a credible comparison intervention, is associated with better caloric intake in a laboratory meal over time in AN. Additional studies are required to determine whether incorporation of these techniques into a longer treatment program leads to enduring and clinically significant change.