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Obesity Surgery

, Volume 27, Issue 10, pp 2515–2521 | Cite as

Preoperative Weight Loss and Operative Outcome After Laparoscopic Sleeve Gastrectomy

  • Atsushi WatanabeEmail author
  • Yosuke Seki
  • Hidenori Haruta
  • Eri Kikkawa
  • Kazunori Kasama
Original Contributions

Abstract

Background

Use of a preoperative diet before bariatric surgery to improve postoperative complications and weight loss has been reported. However, evidence supporting this diet for laparoscopic sleeve gastrectomy (LSG) is insufficient. We aimed to investigate postoperative outcomes influenced by preoperative diet before LSG.

Methods

This study included 247 patients who underwent LSG after preoperative weight management. They were classified according to preoperative weight changes (group 1, weight gain; group 2, 0–3.0% total weight loss (TWL); group 3, 3.1–5.0% TWL; group 4, >5.1% TWL) and investigated for early postoperative complications and weight loss at 1 year.

Results

There were 37 patients in group 1, 79 in group 2, 64 in group 3, and 67 in group 4. There were no statistical differences in initial physical status among the 4 groups. The median BMI declined to 27.6 kg/m2 in the entire group. Although the average %TWL during the combined preoperative and postoperative periods showed no statistical differences (P = 0.69), the average %TWL during the postoperative period decreased gradually as the extent of preoperative weight loss increased (P = 0.01). The early postoperative complication rate for the entire group was 6.9%; it tended to be lower as the extent of preoperative weight loss increased. However, a multiple logistic regression model demonstrated that the preoperative diet was not a statistical predictor of reduced early postoperative complications (P = 0.28).

Conclusion

The extent of preoperative weight loss statistically affected postoperative weight loss. A preoperative diet might have minor advantages in reducing the risk of early postoperative complications.

Keywords

Bariatric surgery Laparoscopic sleeve gastrectomy Morbid obesity Postoperative weight loss Preoperative weight loss 

Notes

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no competing interests.

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 this study.

Grant Information and an Acknowledgment of Grant Support

This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of SurgeryJikei University School of MedicineTokyoJapan
  2. 2.Weight Loss and Metabolic Surgery CenterYotsuya Medical CubeTokyoJapan
  3. 3.Clinical Institute of Digestive Disease Surgical BranchJichi Medical UniversityTochigiJapan

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