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Harrison's Principles of Internal Medicine, 18e
Chapter 79. Eating Disorders
Sections: Eating Disorders: Introduction, Anorexia Nervosa, Bulimia Nervosa, Binge Eating Disorder, Global Considerations, Further Readings.
Topics Discussed: eating disorder.
Excerpt:"Anorexia nervosa and bulimia nervosa are characterized by severe disturbances of eating behavior. The salient feature of anorexia nervosa (AN) is a voluntary restriction of food intake relative to caloric requirements leading to an inappropriately low body weight. Bulimia nervosa (BN) is characterized by recurrent episodes of binge eating followed by abnormal compensatory behaviors, such as self-induced vomiting. AN and BN are distinct clinical syndromes but share common features. Both disorders occur primarily among previously healthy young women who become overly concerned with body shape and weight. Many patients with BN have past histories of AN, and many patients with AN engage in binge eating and purging behavior. In the current diagnostic system, the critical distinction between AN and BN depends on body weight: patients with AN are, by definition, significantly underweight, whereas patients with BN have body weights in the normal range or above. Binge eating disorder (BED) is a more recently described syndrome characterized by repeated episodes of binge eating, similar to those of BN, in the absence of inappropriate compensatory behavior...."
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