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Weight Loss Analysis According to Different Formulas after Sleeve Gastrectomy With or Without Antral Preservation: a Randomised Study

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Abstract

Background

The measurement of weight loss after bariatric surgery is under constant review in order to obtain the ideal standard for reporting weight loss. Several formulas have been proposed for this purpose. Our goal is to analyse weight loss after sleeve gastrectomy, with or without antrum preservation through different measurement formulas.

Methods

A prospective randomised study of 60 patients (30 patients with initial section at 3 cm from pylorus and 30 patients at 8 cm from the pylorus). We calculate the following variables at 3, 6 and 12 months from surgery: BMI, excess weight loss (%EWL), percentage of excess of BMI loss (%PEBMIL), expected BMI, % PEBMIL corrected by EBMI and percentage of total weight loss (%TWL).

Results

Weight evolution is similar in both groups, reaching a mean BMI of 33.62 ± 4.35 and 34.48 ± 4.23 kg/m2 respectively 12 months after surgery, closer to expected BMI. TWL follows the same trend, with losses exceeding 30%, although 3 cm group is above the tables of percentiles made with our series. Regarding PEBMIL, the 3 cm group reaches 67.8% classified as excellent, while 8 cm group reaches 62.8% classified as a good result. EWL situates the best results for 3 cm group.

Conclusions

Group 3 cm obtained a lower percentage of suboptimal results using EWL. %TWL places the 3 cm group in higher percentile than 8 cm group. Through EBMI, both groups are equally effective. It is necessary to have standardised dynamic tables for each surgical technique, becoming essential elements to measure weight loss after surgery.

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Acknowledgements

This study was funded by the “Carlos III Research Institute”/Ministry of Economy and Competitiveness (registration number PI 11/02332), Spain.

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Authors and Affiliations

  1. Surgery Service of Sant Joan University Hospital, Faculty of Medicine and Health Sciences, IISPV, Rovira i Virgili University, Reus, Tarragona, Spain

    Fàtima Sabench Pereferrer, Alicia Molina López, Margarida Vives Espelta, Esther Raga Carceller, Santiago Blanco Blasco, Francisco Buils Vilalta, Marta París Sans, Maria Luisa Piñana Campón, Mercè Hernández González, Antonio Sánchez Marín & Daniel Del Castillo Déjardin

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  1. Fàtima Sabench Pereferrer
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  2. Alicia Molina López
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  3. Margarida Vives Espelta
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  4. Esther Raga Carceller
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  5. Santiago Blanco Blasco
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  6. Francisco Buils Vilalta
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  7. Marta París Sans
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  8. Maria Luisa Piñana Campón
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  9. Mercè Hernández González
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  10. Antonio Sánchez Marín
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  11. Daniel Del Castillo Déjardin
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Corresponding author

Correspondence to Daniel Del Castillo Déjardin.

Ethics declarations

Informed consent was obtained from all individual participants included in the study. All procedures performed were in accordance with the ethical standards of the institutional research committee (registration number CEIC11–04-28/4PROJ3) and with the 1964 Helsinki declaration and its later amendments.

Conflict of Interest

The authors declare that they have no conflict of interest.

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Sabench Pereferrer, F., Molina López, A., Vives Espelta, M. et al. Weight Loss Analysis According to Different Formulas after Sleeve Gastrectomy With or Without Antral Preservation: a Randomised Study. OBES SURG 27, 1254–1260 (2017). https://doi.org/10.1007/s11695-016-2454-z

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  • DOI: https://doi.org/10.1007/s11695-016-2454-z

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