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Changes in Gastric Volume and Their Implications for Weight Loss after Laparoscopic Sleeve Gastrectomy

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Abstract

Background

Laparoscopic sleeve gastrectomy (LSG) is a relatively new surgical technique for the treatment of morbid obesity. It is unclear whether the volume of the gastric remnant can expand after surgery as a result of intraluminal pressure maintained over time. If this were the case, the increased volume could affect weight loss and the improvement in comorbidities. This study aims to assess the evolution of residual gastric volume (RGV) during the first year after LSG and its relationship with weight loss.

Material and Methods

We conducted a prospective study of 112 patients who underwent LSG from February 2009 to December 2013. In order to measure the RGV after surgery, all patients were evaluated radiologically by an esophagogastroduodenal (EGD) transit at 1 and 12 postoperative months.

Results

All patients showed a significant reduction in BMI compared with the preoperative measurement (33.48 ± 5.78 vs. 50.54 ± 6.69 kg/m2; p < 0.001). Increased RGV was observed when comparing the results obtained by EGD transit at 1 (68.39 ± 25.89 cm3) and 12 postoperative months (122.58 ± 38.76 cm3; p < 0.001). There was no association between increase in gastric volume and weight loss at 1-year follow-up (r = 0.01; p = 0.910).

Conclusions

The volume of the gastric remnant increased significantly during the first year after LSG. However, this increase was not associated with weight loss. Further prospective research with longer follow-up periods is needed to confirm or contrast the present results.

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Acknowledgments

A S-M was funded by the Spanish Ministry of Education, Culture, and Sport (grant number FPU12/00963). E.G.A. was funded by the Spanish Ministry of Economy and Competitiveness (MINECO) (RYC-2014-16390).

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Authors and Affiliations

  1. Bariatric Surgery Department, Complejo Hospitalario Torrecárdenas, Almería, Spain

    Manuel Ferrer-Márquez, Almudena Moreno-Serrano & Manuel Ferrer-Ayza

  2. Torrecárdenas Hospital, Almería, Spain

    Juan José García-Díaz

  3. Department of Radiology, Torrecárdenas Hospital, Almería, Spain

    José Miguel García-Díez

  4. Medical area, University of Almería, Almería, Spain

    Raquel Alarcón-Rodríguez

  5. Department of Education, Area of Physical Education and Sport, University of Almería, Almería, Spain

    Enrique G. Artero

  6. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain

    Alberto Soriano-Maldonado

Authors
  1. Manuel Ferrer-Márquez
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  2. Juan José García-Díaz
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  3. Almudena Moreno-Serrano
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  4. José Miguel García-Díez
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  5. Manuel Ferrer-Ayza
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  6. Raquel Alarcón-Rodríguez
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  7. Enrique G. Artero
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  8. Alberto Soriano-Maldonado
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Correspondence to Manuel Ferrer-Márquez.

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The authors declare that they have no conflict of interest.

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed Consent

Informed consent was obtained from all individual participants included in the study.

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Ferrer-Márquez, M., García-Díaz, J.J., Moreno-Serrano, A. et al. Changes in Gastric Volume and Their Implications for Weight Loss after Laparoscopic Sleeve Gastrectomy. OBES SURG 27, 303–309 (2017). https://doi.org/10.1007/s11695-016-2274-1

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  • DOI: https://doi.org/10.1007/s11695-016-2274-1

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