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Long-term weight loss outcomes after bariatric surgery: a propensity score study among patients with psychiatric disorders

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Abstract

Introduction

To analyze the safety and long-term result of bariatric surgery in patients with psychiatric disorders.

Material and methods

From January 2009 to December 2018, n = 961 patients underwent bariatric surgery in a tertiary center. Among them, two groups of patients were created: a group of patients with psychiatric disorders (PG) and a group without psychiatric disorders (CG), using a propensity score matched (PSM). Primary endpoint was long-term outcomes and secondary endpoints were the postoperative morbidity 90 days after surgery, late morbidity, occurrence of psychiatric adverse events, and resolution of obesity-related comorbidities.

Results

Analysis with PSM permitted to compare 136 patients in each group, with a ratio 1:1. TWL% at 2 years in the PG was 32.7% versus 36.6% in the CG (p = 0.002). Overall surgical morbidity was higher in the PG than the CG (28% vs 17%, p = 0.01). Severe surgical complications were not statistically significant (4% vs 3%, p = 0.44). Psychiatric adverse events were significantly more frequent in the PG than in the CG. The resolution of obesity comorbidities was equivalent for both groups at 2 years.

Conclusion

Substantial weigh loss was reported among patients with psychiatric disorders receiving bariatric surgery at the cost of more non-severe surgical complications. Further, a psychiatric postoperative follow-up visit may be warranted for patients with preoperative psychiatric disorders, given the incidence of psychiatric adverse events.

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Correspondence to Benjamin Menahem.

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Ludovic Dupont, Benjamin Menahem, Jean-Jacques Parienti, Arnaud Alves, Eric Bui, Adrien Lee Bion, Hugo Meunier, and Anaïs Briant have no conflicts of interest or financial ties to disclose.

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Dupont, L., Alves, A., Bui, E. et al. Long-term weight loss outcomes after bariatric surgery: a propensity score study among patients with psychiatric disorders. Surg Endosc 37, 8362–8372 (2023). https://doi.org/10.1007/s00464-023-10343-z

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