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Related Experiment Video

Updated: Jun 7, 2025

Roux-en-Y Gastric Bypass Operation in Rats
07:37

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Gastric Pouch Resizing for Recurrent Weight Gain After Roux-en-Y Gastric Bypass-Does It Have Its Rational?

Stefanie Josefine Hehl1,2, Dominique Lisa Birrer3, Renward Hauser4

  • 1Department of Visceral and Transplant Surgery, Swiss HPB Center, University Hospital Zurich, 8091, Zurich, Switzerland. stefanie-hehl@gmx.ch.

Obesity Surgery
|November 12, 2024
PubMed
Summary
This summary is machine-generated.

Gastric pouch resizing (GPR) after Roux-en-Y gastric bypass (RYGB) effectively manages weight regain and resolves obesity comorbidities. This safe secondary surgery improves patient outcomes and satisfaction in well-selected individuals.

Keywords:
Bariatric surgeryPouch resizingRecurrent weight gain

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Area of Science:

  • Bariatric Surgery
  • Metabolic Surgery
  • Obesity Management

Background:

  • Metabolic-bariatric surgery (MBS) is the most effective obesity treatment.
  • Up to 40% of patients experience weight regain after Roux-en-Y gastric bypass (RYGB), leading to comorbidity recurrence.
  • Gastric pouch resizing (GPR) is a secondary surgery to address weight regain.

Purpose of the Study:

  • To analyze the long-term effects of GPR after primary RYGB.
  • To evaluate GPR's impact on weight loss, comorbidity resolution, safety, and patient satisfaction.

Main Methods:

  • Retrospective analysis of 48 patients undergoing laparoscopic GPR between 2016-2020.
  • GPR involved pouch resection and gastrojejunostomy redo.
  • 37 patients completed a survey on patient-reported outcome measures (PROMs).

Main Results:

  • GPR was performed a mean of 106 months post-RYGB at a mean BMI of 39 kg/m².
  • Mean follow-up was 56 months; BMI decreased significantly by 1 and 5 years post-GPR.
  • Obesity comorbidities resolved in 53% of patients (p<0.05); minor/major complications occurred in 12.5%/10.4%.

Conclusions:

  • GPR is a safe procedure for managing recurrent weight gain after RYGB.
  • It leads to weight stabilization and resolution of obesity-associated comorbidities.
  • GPR is a valuable option for carefully selected patients.