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Obesity Surgery

, Volume 27, Issue 2, pp 303–309 | Cite as

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

  • Manuel Ferrer-Márquez
  • Juan José García-Díaz
  • Almudena Moreno-Serrano
  • José Miguel García-Díez
  • Manuel Ferrer-Ayza
  • Raquel Alarcón-Rodríguez
  • Enrique G. Artero
  • Alberto Soriano-Maldonado
Original Contributions

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.

Keywords

Laparoscopic sleeve gastrectomy Obesity Esophagogastroduodenal transit Gastric volume Weight loss 

Notes

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).

Compliance with ethical standards

Conflict of Interest

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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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Manuel Ferrer-Márquez
    • 1
  • Juan José García-Díaz
    • 2
  • Almudena Moreno-Serrano
    • 1
  • José Miguel García-Díez
    • 3
  • Manuel Ferrer-Ayza
    • 1
  • Raquel Alarcón-Rodríguez
    • 4
  • Enrique G. Artero
    • 5
  • Alberto Soriano-Maldonado
    • 6
  1. 1.Bariatric Surgery DepartmentComplejo Hospitalario TorrecárdenasAlmeríaSpain
  2. 2.Torrecárdenas HospitalAlmeríaSpain
  3. 3.Department of RadiologyTorrecárdenas HospitalAlmeríaSpain
  4. 4.Medical areaUniversity of AlmeríaAlmeríaSpain
  5. 5.Department of EducationArea of Physical Education and Sport, University of AlmeríaAlmeríaSpain
  6. 6.Department of Physical Education and Sport, Faculty of Sport SciencesUniversity of GranadaGranadaSpain

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