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Factors Related to Weight Loss up to 4 Years after Bariatric Surgery

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Abstract

Background

Gastric bypass is the bariatric surgery most frequently performed in the world. It is responsible for sustainable weight loss, resolution of comorbidities, and improvement of quality of life. However, weight loss is not homogeneous, at times being insufficient in some patients. Our objective was to assess which factors were important in influencing this differentiated weight loss over a period of 4 years after surgery.

Methods

In this retrospective study, we assessed several physical, socioeconomic, behavioral, surgical, and demographic factors in morbidly obese patients submitted to Roux-en-Y gastric bypass that might influence excess weight loss over a period of 4 years after surgery. The same factors were assessed in order to characterize insufficient excess weight loss (<50% EWL).

Results

Review of the medical records of 149 patients showed that type-2 diabetes mellitus and dyslipidemia were the most important factors related to a lower EWL up to the third year. Preoperative weight loss, lower schooling, and lack of adherence to nutritional guidelines were important after 2 and 3 years. The presence of depression and lack of adherence to nutritional guidelines were the factors related to EWL of less than 50%.

Conclusions

Special attention and clarification should be provided to patients with diabetes mellitus type 2 and dyslipidemia and to patients with depression and lower schooling, since these patients tend to lose less excess weight after surgery. Multiprofessional care should also be provided so that the patients will follow nutritional guidelines more rigorously after surgery.

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Conflict of Interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Surgery and Anatomy, University Hospital, Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil

    Wilson Salgado Júnior & Júlia Lopes do Amaral

  2. Division of Nutrition, Department of Internal Medicine, University Hospital, Faculty of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil

    Carla Barbosa Nonino-Borges

  3. R Antônio Chiericato, 760, Ribeirão Preto, SP, Brazil, 14096 510

    Wilson Salgado Júnior

Authors
  1. Wilson Salgado Júnior
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  2. Júlia Lopes do Amaral
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  3. Carla Barbosa Nonino-Borges
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Correspondence to Wilson Salgado Júnior.

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Júnior, W.S., do Amaral, J.L. & Nonino-Borges, C.B. Factors Related to Weight Loss up to 4 Years after Bariatric Surgery. OBES SURG 21, 1724–1730 (2011). https://doi.org/10.1007/s11695-011-0420-3

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  • DOI: https://doi.org/10.1007/s11695-011-0420-3

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