Anorexia nervosa (AN) is a complex eating disorder associated with a high morbidity and mortality, however, there is a lack of dedicated training for healthcare professionals outside of mental health specialities. There has been a reported increase in acute admissions of patients with AN, which may have been precipitated by the isolation and loss of support networks created by the COVID-19 pandemic. The purpose of this review is to highlight that AN can present with a wide variety of signs and symptoms relating to both the hollow and solid organs of the gastrointestinal (GI) tract some of which may even be life threatening. The overlap of symptoms with several other functional and organic GI diseases makes diagnosis challenging. Gastroenterologists and allied healthcare professionals need to be aware of the wide array of possible GI manifestations not only to help rationalise investigations but to also facilitate early involvement of the relevant multidisciplinary teams. Many of the GI manifestations of AN can be reversed with careful nutritional therapy under the guidance of nutrition support teams.

中文翻译：

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神经性厌食症和胃肠道

神经性厌食症 (AN) 是一种复杂的饮食失调症，发病率和死亡率都很高，但是，除了心理健康专业外，缺乏对医疗保健专业人员的专门培训。据报道，急性入院的 AN 患者有所增加，这可能是由于 COVID-19 大流行造成的支持网络的孤立和丧失所致。本综述的目的是强调 AN 可出现与胃肠道 (GI) 的空心和实心器官相关的多种体征和症状，其中一些甚至可能危及生命。症状与其他几种功能性和器质性胃肠道疾病的重叠使得诊断具有挑战性。胃肠病学家和相关医疗保健专业人员需要了解各种可能的 GI 表现，这不仅有助于合理化调查，还有助于相关多学科团队的早期参与。在营养支持团队的指导下，通过仔细的营养治疗，可以逆转 AN 的许多 GI 表现。