Abstract

Anorexia nervosa (AN) is a complicated and life-threatening mental illness. Restoration of weight and nutrition rehabilitation are key elements for the treatment of AN. However, gastrointestinal (GI) complications often develop due to eating disorder behaviors, concomitant malnutrition, and during the refeeding process. These problems may give rise to significant medical complications and contribute to increased difficulties with refeeding and weight restoration. This review aims to describe common GI complications in AN including delayed gastric emptying, gastric dilatation, superior mesenteric artery (SMA) syndrome, refeeding hepatitis, and refeeding syndrome. Recommendations for clinicians refeeding a patient with AN are provided. Knowledge of these GI manifestations is required for correct management and successful nutritional rehabilitation of patients with AN.

Highlights

  • Anorexia nervosa (AN) is a serious psychiatric illness

  • While research on the genetic predisposition for developing eating disorders continues to progress, it is increasingly clear from twin studies that approximately 60% of the variance in risk for developing AN is due to genetic factors [5]

  • The purpose of this paper is to explore the role that these complications, including delayed gastric emptying, constipation, gastric dilatation, superior mesenteric artery (SMA) syndrome, refeeding hepatitis, and refeeding syndrome, may play in the treatment of AN

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Summary

Introduction

Anorexia nervosa (AN) is a serious psychiatric illness. The American Psychiatric Association (DSM-5) defines. Eating disorders have the highest rate of medical complications among all psychiatric disorders [3]. Several factors, such as childhood eating and gastrointestinal problems, increased body image concerns, negative self-evaluation and sexual abuse, have all been identified as possible etiologic factors in the development of AN [4]. The RD is the member of the multidisciplinary team who often guides the weight restoration process by determining a starting kilocalorie point for the patient’s meal plan and working with the patient to apply continuous increases in energy intake while monitoring patterns of weight gain as well as any medical side effects from the refeeding process [10,12]. A qualitative review of mostly medical literature was conducted

Delayed Gastric Emptying
Gastric Dilatation
SMA Syndrome
Refeeding Hepatitis
Refeeding Syndrome
Findings
Conclusion

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