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World J Gastroenterol. Nov 28, 2014; 20(44): 16649-16664
Published online Nov 28, 2014. doi: 10.3748/wjg.v20.i44.16649
Published online Nov 28, 2014. doi: 10.3748/wjg.v20.i44.16649
Table 1 Anatomic and physiologic changes due to bariatric surgery
Stomach | Duodenum | Proximal intestine | Distal intestinal | |
RYGB | Decreased capacity to 15-30 mLChyme bypasses 90% of stomachDecreased gastric transit time | Bypassed by chyme | Proximal jejunum bypassed by chymeRapid exposure of distal jejunum to chymeBile mixes with chyme in proximal ileum | Earlier exposure to chyme |
AGB | Restrictive band around gastric cardiaDirect pressure on vagus nerves | No alterations | No alterations | No alterations |
BPD/DS | Decreased capacity to 60-150 mL85%-90% of stomach removedAccelerated gastric emptying by 2-fold to 3-fold | Bypassed by chyme | Chyme bypasses jejunum Rapid exposure of ileum to chymeBile mixes with chyme in distal ileum | Rapid exposure to chime |
SG | Decreased capacity to 60-150 mL85%-90% of stomach removedAccelerated gastric emptying by 2-fold to 3-fold | More rapid exposure to chyme | Possibly earlier exposure to chyme | Possibly earlier exposure to chyme |
- Citation: Finelli C, Padula MC, Martelli G, Tarantino G. Could the improvement of obesity-related co-morbidities depend on modified gut hormones secretion? World J Gastroenterol 2014; 20(44): 16649-16664
- URL: https://www.wjgnet.com/1007-9327/full/v20/i44/16649.htm
- DOI: https://dx.doi.org/10.3748/wjg.v20.i44.16649