Related Experiment Video
Updated: Jan 24, 2026

One-anastomosis Gastric Bypass OAGB in Rats
Published on: November 10, 2018
Dilated Gastric Pouch Resizing for Weight Loss Failure After One Anastomosis Gastric Bypass
Adrien Faul1, Jean-Marc Chevallier1, Tigran Poghosyan2
1Department of Digestive, Oncologic and Bariatric Surgery, AP-HP, Hôpital Européen Georges Pompidou and Paris Descartes University, 20 Rue Leblanc, 75015, Paris, France.
Abstract:
Some patients may experience inadequate weight loss or weight regain due to gastric pouch dilation after one anastomosis gastric bypass (OAGB). Dilated gastric pouch resizing (GPR) associated with correction of eating behavior was suggested as an option in the management of these patients. Retrospective analysis of 17 consecutives patients who underwent a GPR between 2007 and 2017 was undertaken. At revision, the mean body mass index (BMI) and percentage of total weight loss (%TWL) were 41.5 ± 11 kg/m2 and 15 ± 10, respectively. Overall morbidity rate was 6.7% (n = 1). Two years after revision, the mean BMI and %TWL were 34.1 ± 5 kg/m2 and 31 ± 13, respectively. GPR appeared to be a satisfactory option resulting in mid-term secondary weight loss in well selected patients at the expense of non-negligible morbidity rate.
Related Concept Videos
Gastric Motility
Peristaltic Waves and Chyme Formation
Upon food entry, the stomach initiates...
Gastric Emptying
Gastric Phase of Digestion
When food enters the stomach, it stretches the stomach walls and activates stretch receptors. This triggers local reflexes of the enteric nervous system, mediated through the myenteric plexus. These...
Line Loss
Line loss impacts power delivery efficiency in a balanced three-phase circuit. The symmetry in such a circuit simplifies the...
Weighted Mean
For example, consider the number of goals scored in the matches of a tournament. While computing the average number of goals scored in the tournament, it may be more important to...
Cardiomyopathy II: Dilated Cardiomyopathy

