What Amount of Weight Loss Can Entail Anorexia Nervosa or Atypical Anorexia Nervosa After Bariatric Surgery?

IF 4.7 2区医学 Q1 NUTRITION & DIETETICS International Journal of Eating Disorders Pub Date : 2024-09-05 DOI:10.1002/eat.24286

Johannes Hebebrand, Jochen Antel, Eva Conceição, Abigail Matthews, Anke Hinney, Triinu Peters

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Abstract

Objective

Post-operative development of restrictive eating disorders can occur in patients after bariatric surgery. In children and adolescents with anorexia nervosa (AN) or atypical AN, premorbid body mass index (BMI) has recently been shown to predict total weight loss. We hypothesized that pre-operative BMI similarly predicts weight loss and the development of a restrictive eating disorder in adult bariatric patients.

Method

A PubMed search identified case studies/series of 29 adult females who developed AN or atypical AN/eating disorder not otherwise specified following bariatric surgery. Non-parametric Spearman's correlation (r _s) between pre-operative BMI and total weight loss was calculated; a scatterplot was used to illustrate the relationship between pre-operative/premorbid BMI and weight loss in kg for 29 bariatric patients and 460 children and adolescents with AN or atypical AN as published previously.

Results

The correlation between pre-operative BMI and weight loss among bariatric patients was r _s = 0.65 (p = 0.0001). Scatterplot data of this relationship fit the previously identified pattern in children and adolescents with AN or atypical AN.

Discussion

The prediction of weight loss by pre-operative/premorbid BMI appears applicable across the weight spectrum, from underweight to severe obesity, thus strengthening our hypothesis of underlying regulatory mechanisms for the development of AN and atypical AN. Such data may guide the determination of critical weight loss thresholds that trigger eating disorder development in predisposed individuals.

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减肥手术后体重下降多少会导致神经性厌食症或非典型神经性厌食症？

目的：减肥手术后的患者可能会出现术后限制性进食障碍。在患有神经性厌食症（AN）或非典型性厌食症的儿童和青少年中，病前体重指数（BMI）最近已被证明可预测总重量的下降。我们假设，术前体重指数同样可以预测成年减肥患者的体重减轻情况和限制性进食障碍的发展情况：方法：我们在PubMed上搜索到了29名成年女性的病例研究/系列研究，这些女性在接受减肥手术后出现了自闭症或非典型自闭症/未另作说明的进食障碍。计算了术前体重指数（BMI）与总减重之间的非参数斯皮尔曼相关性（rs）；使用散点图说明了29名减肥患者和460名患有自闭症或非典型自闭症的儿童和青少年的术前/病前体重指数（BMI）与以千克为单位的减重之间的关系：减肥患者术前体重指数与体重下降之间的相关性为 rs = 0.65 (p = 0.0001)。这一关系的散点图数据符合之前在患有AN或非典型AN的儿童和青少年中发现的模式：讨论：通过术前/病前体重指数预测体重减轻似乎适用于从体重不足到严重肥胖的整个体重谱，从而加强了我们对自闭症和非典型自闭症发展的潜在调节机制的假设。这些数据可为确定引发易感人群进食障碍的临界体重减轻阈值提供指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Eating Disorders 医学-精神病学

CiteScore

10.00

自引率

12.70%

发文量

204

审稿时长

4-8 weeks

期刊介绍： Articles featured in the journal describe state-of-the-art scientific research on theory, methodology, etiology, clinical practice, and policy related to eating disorders, as well as contributions that facilitate scholarly critique and discussion of science and practice in the field. Theoretical and empirical work on obesity or healthy eating falls within the journal’s scope inasmuch as it facilitates the advancement of efforts to describe and understand, prevent, or treat eating disorders. IJED welcomes submissions from all regions of the world and representing all levels of inquiry (including basic science, clinical trials, implementation research, and dissemination studies), and across a full range of scientific methods, disciplines, and approaches.