Feeding and eating disorders

Abstract

Feeding and eating disorders occur across the age range from infancy to adulthood, varying in type and severity. In the case of children and adolescents there has been a relatively poor fit between available diagnostic categories and commonly described clinical presentations, which has contributed to a situation characterized by limited knowledge about epidemiology, prognosis, course and outcome. Some presentations, such as anorexia nervosa and bulimia nervosa, have received greater research attention than others, resulting in a patchy field in terms of evidence based guidance for assessment and intervention. This presents challenges for clinicians treating patients with feeding and eating disturbances, in particular for those who do not regard themselves as specialists in this field. This chapter aims to cover the full range of feeding and eating disorders likely to be seen in child and adolescent mental health care settings from presentations in infancy to those approaching adulthood. These include: anorexia nervosa, bulimia nervosa, binge eating disorder, avoidant/restrictive food intake disorder, pica and rumination disorder. The diagnostic category feeding disorder of infancy or early childhood no longer exists as a specific diagnosis in DSM-5, although feeding disorder of infancy and childhood remains in use in ICD-10, and is therefore also discussed. Our aim is to present the practicing clinician with a concise, scholarly update on the field of child and adolescent feeding and eating disorders and as well as to provide a useful source chapter to guide assessment and intervention.

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