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The Impact of Preoperative Weight Loss Before Laparoscopic Gastric Bypass

Obesity Surgery volume 24, pages 669–674 (2014)Cite this article

Abstract

Background

The impact of preoperative weight loss on outcomes following laparoscopic Roux-en-Y gastric bypass (LRYGB) is a controversial issue. We evaluated our outcomes of LRYGB in patients who lost different amount of weight prior to surgery.

Methods

Patients who underwent primary LRYGB were divided in three groups on the basis of preoperative weight loss percentage. Group A comprised 166 patients, who lost <5 % of their weight preoperatively; group B comprised 239 patients who lost >5 to 10 % and group C included 143 patients who lost >10 %. Intra- and postoperative complications at 30 days, hospital stay, and outcomes were evaluated.

Results

Significant difference was found in operative (mean ± SD) time [104.43 ± 36.40 min in group A, 80.08 ± 23.07 min in group B, and 76.99 ± 23.23 min in group C; p < 0.001 in group A versus group B or group C; p = 0.210 in group B versus group C]. Difference in hospital stay was significant (3.33 ± 3.22 days in group A, 2.10 ± 2.77 in group B, and 1.87 ± 1.44 in group C; p < 0.001 in group A versus groups B or C). Overall postoperative morbidity rate was 33.13 % in group A, 19.25 % in group B, and 11.89 % in group C, with significant difference in group A versus groups B or C (p = 0.002 and p < 0.001). Mean excess weight loss was significantly higher (72.7 %) in group C versus group A (63.1 %) (p = 0.015) at 12 months.

Conclusions

Weight loss >5 % prior to LRYGB may reduce morbidity, and preoperative weight loss >10 % may improve weight loss outcomes at 1-year follow-up.

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Conflict of Interest

No commercial associations or disclosures may pose or create any conflict of interest with information presented in this manuscript.

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Affiliations

  1. Department of Plastic and General Surgery, Turku University Hospital, Turku, Finland

    Salvatore Giordano

  2. Department of Gastrointestinal Surgery, Vaasa Central Hospital, Vaasa, Finland

    Salvatore Giordano & Mikael Victorzon

Authors
  1. Salvatore Giordano
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  2. Mikael Victorzon
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Corresponding author

Correspondence to Salvatore Giordano.

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Giordano, S., Victorzon, M. The Impact of Preoperative Weight Loss Before Laparoscopic Gastric Bypass. OBES SURG 24, 669–674 (2014). https://doi.org/10.1007/s11695-013-1165-y

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Keywords

  • Preoperative weight loss
  • Morbid obesity
  • Bariatric surgery
  • Gastric bypass
  • Weight loss, LRYGB