Eating Disorders in Child and Adolescent Psychiatry Preface Tr e a t i n g E a t i n g D i s o r d e r s i n Children and Adolescents: An Update James Lock, MD, PhD Jennifer Derenne, MD Editors It was a pleasure to edit this issue of Child and Adolescent Psychiatric Clinics of North America focused on eating disorders. Despite the fact that eating disorders retain the distinction of having the highest mortality of all mental illnesses, access to appropriate treatment remains problematic for many youth and their families. Outcomes data suggest that there is still much room for improvement, but ongoing research strives to better understand biological vulnerabilities to the illness, develop innovative treatments, and establish a strong evidence base to support those interventions. Many child and adolescent psychiatrists feel underprepared to assess and make treatment recommendations for patients with eating disorders. All the same, with a relative dearth of subspecialty providers available, general child and adolescent psychiatrists are often asked to evaluate and treat these patients. They are also likely to encounter disordered eating in the context of their work with other patients; eating disorders are highly comorbid with mood, anxiety, obsessive compulsive disorders, substance use disorders, and personality disorders. Careful child and adolescent psychiatrists need to consider disordered eating when evaluating psychiatric symptoms that could be a manifestation of malnutrition. For this reason, we decided to curate this issue of the Child and Adolescent Psychiatric Clinics of North America with an eye toward updating clinical recommendations for treating anorexia nervosa, bulimia nervosa, binge-eating disorder, and avoidant restrictive food intake disorder in children, adolescents, and transitional age youth. In addition to reviewing the evidence base for outpatient psychotherapeutic treatments, we include articles on higher levels of care, psychopharmacology in child and adolescent eating disorders, and a review of the medical complications of eating disorders as well as the assessment and treatment of malnutrition. We round out the Child Adolesc Psychiatric Clin N Am 28 (2019) xiii–xiv https://doi.org/10.1016/j.chc.2019.06.001 1056-4993/19/ª 2019 Elsevier Inc. All rights reserved. childpsych.theclinics.com xiv Preface issue with articles on genetic contributions and the neurobiological basis for the development of eating disorders and conclude with a discussion of underrepresented populations (including male adolescents), and ways in which technology can be harnessed to aid in the successful treatment of eating disorders. We are grateful to our contributing authors for sharing their research findings and clinical wisdom, and for the time and effort involved in this undertaking. James Lock, MD, PhD Psychiatry and Behavioral Sciences and Pediatrics Division of Child and Adolescent Psychiatry Eating Disorder Program Stanford University School of Medicine 401 Quarry Road MC 5719 Stanford, CA 94305, USA Jennifer Derenne, MD Psychiatry and Behavioral Sciences Comprehensive Care Program Division of Child and Adolescent Psychiatry Stanford University School of Medicine 401 Quarry Road MC 5719 Stanford, CA 94305, USA E-mail addresses: jimlock@stanford.edu (J. Lock) jderenne@stanford.edu (J. Derenne)