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Obesity Surgery

, Volume 26, Issue 6, pp 1343–1351 | Cite as

Commercial Very Low Energy Meal Replacements for Preoperative Weight Loss in Obese Patients: a Systematic Review

  • Lynda J. RossEmail author
  • Siobhan Wallin
  • Emma J. Osland
  • Muhammed Ashraf Memon
Review

Abstract

Background

This systematic review assessed feasibility and effectiveness of preoperative meal replacements to improve surgical outcomes for obese patients.

Methods

PRISMA guidelines were followed and electronic databases searched for articles between January 1990 and March 2015.

Results

Fifteen studies (942 participants including 351 controls) were included, 13 studies (n = 750) in bariatric patients. Adverse effects and dropout rates were minimal. Ten out of 14 studies achieved 5–10 % total weight loss. Six of six studies reporting liver volume achieved 10 % reduction. Endpoints for perioperative risks and outcomes were too varied to support definitive risk benefit.

Conclusions

Commercial meal replacements are feasible, have minimal side effects and facilitate weight loss and liver shrinkage in free-living obese patients awaiting elective surgery. A reduction in surgical risk is unclear.

Keywords

Very low energy diet Meal replacements Preoperative weight loss Surgical outcomes 

Notes

Acknowledgments

Thank you to Paula MacDermott for providing a third opinion in the review process and assisting with time lines for the review.

Compliance with Ethical Standards

Conflict of Interest

Lynda Ross has no conflict of interest.

Siobhan Wallin has no conflict of interest.

Emma Osland has no conflict of interest.

Muhammed Ashraf Memon has no conflict of interest.

Funding

No funding was provided for the conduct of this review.

Human and Animal Rights and Informed Consent

This article does not contain studies with human participants or animals performed by any of the authors. Informed consent did not apply.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Lynda J. Ross
    • 1
    • 2
    Email author
  • Siobhan Wallin
    • 1
  • Emma J. Osland
    • 1
    • 3
  • Muhammed Ashraf Memon
    • 4
    • 5
    • 6
    • 7
    • 8
  1. 1.Department of Nutrition and DieteticsRoyal Brisbane & Women’s HospitalBrisbaneAustralia
  2. 2.Menzies Health Institute QueenslandGriffith University, Gold Coast campusSouthportAustralia
  3. 3.School of Human Movement and Nutrition Sciences, University of QueenslandBrisbaneAustralia
  4. 4.Sunnybank Obesity Centre and South East Queensland Surgery (SEQS)SunnybankAustralia
  5. 5.Mayne Medical School, School of MedicineUniversity of QueenslandBrisbaneAustralia
  6. 6.Faculty of Health Sciences and MedicineBond UniversityGold CoastAustralia
  7. 7.Faculty of Health Sciences, Mathematics and Computing, Australian Centre for Sustainable CatchmentsUniversity of Southern QueenslandToowoombaAustralia
  8. 8.Faculty of Health ScienceBolton UniversityBoltonUK

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