Sleeve gastrectomy!
This is the portion of the stomach that was removed during a laparoscopic sleeve gastrectomy, a type of bariatric (surgical weight loss) procedure. Sleeve gastrectomy entails resecting the greater curvature and fundus of the stomach. The partial gastrectomy is oriented vertically, parallel to the lesser curvature of the stomach, which results in a gastric volume reduction of 70 to 80%, leaving a narrow gastric tube or sleeve. No intestines are removed or bypassed during the sleeve gastrectomy. The main mechanism of action is that it promotes weight loss through two principal mechanisms of action, mechanical (creation of restriction) and endocrine (creation of anorexia). The newly created stomach is considerably smaller and facilitates significantly smaller meals, which translates into less calories consumed. Sleeve gastrectomy removes the gastric fundus and, therefore, significantly decreases the postprandial levels of ghrelin, a hormone referred to as the “hunger hormone” which promotes satiety and suppress hunger. Decreasing the levels of ghrelin promotes weight loss by inducing satiety. Like any surgical operation, sleeve gastrectomy has possible complications, such as leakage, dilation or stricture of the sleeve , gastric dilatation, and gastroesophageal reflux. Photo by @medschoolposts
guys what about megaloblastic anemia because they remove intrinsic factor where b 12 is absorbed so it will be chronic anemia i am right ?
Parietal cells should still be left intact (as this is a partial gastrectomy) they produce IF. B12 is then absorbed in T. Ileum alongside IF as its cofactor.
If formed in parietal cells I. E in fundus and body of stomach and vitb12 binds with haptoglobulin in salivary secretion in duodenum they divide and bind with IF and absorbed in illeum 🔚
I always thought b12 had to be taken as a supplement because body couldn't absorb it after a gastric surgery??
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