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Review
. 2016 Dec;5(6):617-624.
doi: 10.21037/gs.2016.12.02.

Weight regain after gastric bypass: etiology and treatment options

Almantas Maleckas  1 , Rita Gudaitytė  2 , Rūta Petereit  3 , Linas Venclauskas  2 , Džilda Veličkienė  4
Affiliations
Review

Weight regain after gastric bypass: etiology and treatment options

Almantas Maleckas et al. Gland Surg. 2016 Dec.

Abstract

Roux-en-Y gastric bypass (RYGB) is one of the most common operations performed for the patients with morbid obesity. Weight regain (WR) is a complication that may decrease efficiency of the surgical treatment and demand further interventions. Different factors including lifestyle, mental health, hormonal/metabolic and surgical plays role in WR after RYGB. Various treatment options have been proposed for WR. Conservative treatment is less effective than surgery. Endoscopic refashioning of gastric pouch/stoma fails to achieve sustainable weight loss. Surgical reduction of pouch has acceptable short-term results, but WR after 3 years is substantial. Banded gastric bypass achieves good short-term results, but long-term follow-up data are needed. Distalization of RYGB has a high risk of protein calorie malnutrition (PCM) and conversion to BP diversion (BPD)/duodenal switch (DS) is a technically demanding procedure. Both procedures achieve sustainable long-term weight loss. More studies are needed to explore long-term results of various surgical interventions for WR after RYGB.

Keywords: Bariatric surgery; gastric bypass; review; weight regain etiology; weight regain treatment.

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Conflict of interest statement

The authors have no conflicts of interest to declare.

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