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. 2024 Jul 12:68:e230208.
doi: 10.20945/2359-4292-2023-0208. eCollection 2024.

Mental health and weight regain after bariatric surgery: associations between weight regain and psychiatric and eating-related comorbidities

Maria Francisca F P Mauro  1 , Marcelo Papelbaum  1 , Marco Antônio Alves Brasil  2 , João Regis Ivar Carneiro  2 , Ronir Raggio Luiz  3 , João C Hiluy  1 , José Carlos Appolinario  1
Affiliations

Mental health and weight regain after bariatric surgery: associations between weight regain and psychiatric and eating-related comorbidities

Maria Francisca F P Mauro et al. Arch Endocrinol Metab. .

Abstract

Objective: Weight regain is a common outcome of weight loss interventions. Mental health-related comorbidities, among other factors, can mediate weight regain regardless of the implemented treatment modality. This study explores whether postoperative psychopathological comorbidities are associated with weight regain after bariatric surgery.

Subjects and methods: This cross-sectional study recruited 90 outpatients who underwent Roux-en-Y gastric bypass surgery. Anthropometric measurements were collected retrospectively from medical charts. The Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorder-IV (DSM-IV) Axis I Disorders (SCID-I) was applied to evaluate psychiatry diagnoses. Validated self-report instruments were used to assess depression, anxiety, alcohol use, impulsivity, binge eating, and body image dissatisfaction. Weight regain was defined as a ≥20% increase from the maximum weight lost. Level of evidence: Level III, cross-sectional study based on a well-designed study.

Results: Overall, 55.6% of participants experienced weight regain. Notably, mental disorders such as current binge-eating disorder and lifetime diagnoses including bulimia nervosa, alcohol abuse/dependence, and obsessive-compulsive disorder were significantly associated with weight regain. However, controlled analysis found that, for mental disorders, only current binge-eating disorder (odds ratio [OR] 6.3, 95% confidence interval [CI] 1.26-31.06, p = 0.024) remained associated with weight regain. Eating-related psychopathologies also associated with weight regain included binge eating (d = 0.55; p = 0.013), eating disinhibition (d = 0.76; p = 0.001), higher hunger levels (d = 0.39; p = 0.004), and non-planning trait impulsivity (d = 0.69; p = 0.0001).

Conclusion: Postoperative presence of psychopathological comorbidities, such as eating psychopathology and trait impulsivity, were associated with weight regain after bariatric surgery. These findings highlight the importance of addressing mental health in individuals experiencing postsurgical weight regain.

Keywords: Weight gain; binge eating; eating behavior; impulsivity; psychiatric comorbidity; weight recurrence.

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Conflict of interest statement

Disclosure: Jose Carlos Appolinario receives/has received research grants, consultancy fees, and advisory board fees from Takeda and Janssen Pharmaceuticals.

Figures

Figure 1
Figure 1. Flow chart of the participants' selection.
See this image and copyright information in PMC

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