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Psychological predictors of poor weight loss following LSG: relevance of general psychopathology and impulsivity

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Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity Aims and scope Submit manuscript

Abstract

Purpose

After bariatric surgery (BS) a significant minority of patients do not reach successful weight loss or tend to regain weight. In recent years, interest for the psychological factors that predict post-surgical weight loss has increased with the objective of developing interventions aimed to ameliorate post-surgical outcomes. In the present study, predictive models of successful or poor weight loss 12 months after BS were investigated considering pre-surgery level of psychopathological symptoms, dysfunctional eating behaviors and trait impulsivity at baseline (pre-surgery).

Methods

Sixty-nine patients with morbid obesity canditates for laparoscopic sleeve gastrectomy were assessed regarding metabolic and psychological dimensions. Successful post-surgery weight loss was defined as losing at least 50% of excess body weight (%EWL).

Results

Logistic models adjusted for patient sex, age and presence of metabolic diseases showed that the baseline presence of intense psychopathological symptoms and low attentional impulsivity predict poor %EWL (< 50%), as assessed 12-month post-surgery.

Conclusions

The present findings suggest that intensity of general psychopathology and impulsivity, among other psychological factors, might affect post-surgery %EWL. Conducting adequate psychological assessment at baseline of patients candidates for BS seems to be crucial to orient specific therapeutic interventions.

Level of evidence

Level III, case-control analytic study. 

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Acknowledgements

This research and some of the authors (G.T. and F.F-A.) were partially funded by Instituto de Salud Carlos III (ISCIII) (Grant numbers: PI17/01167). CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn) is an initiative of ISCII.

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Authors and Affiliations

  1. Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain

    Giulia Testa & Fernando Fernández-Aranda

  2. CIBER Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Barcelona, Spain

    Giulia Testa, Roser Granero & Fernando Fernández-Aranda

  3. Department of Psychobiology and Methodology, Autonomous University of Barcelona, Barcelona, Spain

    Roser Granero

  4. Department of Medicine—DIMED, University Hospital of Padua, Padua, Italy

    Cinzia Siragusa, Anna Belligoli, Marta Sanna, Paolo Angeli, Roberto Vettor, Luca Busetto & Sami Schiff

  5. Department of Human and Social Sciences, University of Bergamo, Bergamo, Italy

    Giulia Testa & Maria Luisa Rusconi

  6. Centre for the Study and the Integrated Treatment of Obesity (Ce.S.I.T.O), University Hospital of Padua, Padua, Italy

    Anna Belligoli, Marta Sanna, Roberto Vettor, Mirto Foletto & Luca Busetto

  7. Week Surgery, Department of Surgery, Padova University Hospital, Padua, Italy

    Mirto Foletto

  8. Clinical Sciences Department, School of Medicine, University of Barcelona, Barcelona, Spain

    Fernando Fernández-Aranda

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  1. Giulia Testa
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  2. Roser Granero
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  3. Cinzia Siragusa
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Correspondence to Giulia Testa or Sami Schiff.

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Testa, G., Granero, R., Siragusa, C. et al. Psychological predictors of poor weight loss following LSG: relevance of general psychopathology and impulsivity. Eat Weight Disord 25, 1621–1629 (2020). https://doi.org/10.1007/s40519-019-00800-x

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