Difference between RNY and Sleeve
Here are the high points:
With the Sleeve, you have a fully-functional stomach, just much smaller than before. It still does everything a stomach is supposed to do---primarily, mix and break down your food, and let small bits of it pass into the small intestine, at discrete intervals. There's no malabsorption with the Sleeve, but you WILL need to take vitamins---you simply can't eat enough food to supply everything your body needs. The excess stomach tissue is completely removed from the body, never to trouble you again.
The RNY is much more drastic. The stomach is divided into a tiny food pouch, and a huge remnant stomach. The pylorus is a part of the remnant stomach, so the food moves from your food pouch into your intestine via a stoma, whcih is always open. This is why dumping happens to some people. The stoma has a number of potential problems---strcitures, stretching out (and thereby losing restriction), and marginal ulcers. This is also why you're not suppoed to drink with meals, or for 30 minutes to an hour after a meal---the liquid will push food right through the stoma and you'll be hungry again in no time.
The RNY also has malabsorption---two kinds. Macronutrients/calories, and micronutrients, aka vitamins and minerals. The malabsorption of micronutrients is permanent, but the malabsorption of macronutrients is usually gone by 24 months post-op.
Both the Sleeve and the RNY have about the same success rate, but we don't have a lot of long-term info on the Sleeve yet---it just hasn't been around as a stand-alone surgery long enough yet.
The Sleeve is the stomach portion of the Duodenal Switch, also called the BPD/DS, or, more correctly, the Vertical Sleeve Gastrectomy with Duodenal Switch. The DS has a malabsorption component that gives PERMANENT malabsorption of calories, especially fats. If you're still pre-op, you really should research the DS as well---it's been around since 1988, and it's been shown to have the very BEST long-term, maintained weight loss AND the best resolution or prevention of co-morbs like diabetes and high cholesterol.
With the Sleeve, you have a fully-functional stomach, just much smaller than before. It still does everything a stomach is supposed to do---primarily, mix and break down your food, and let small bits of it pass into the small intestine, at discrete intervals. There's no malabsorption with the Sleeve, but you WILL need to take vitamins---you simply can't eat enough food to supply everything your body needs. The excess stomach tissue is completely removed from the body, never to trouble you again.
The RNY is much more drastic. The stomach is divided into a tiny food pouch, and a huge remnant stomach. The pylorus is a part of the remnant stomach, so the food moves from your food pouch into your intestine via a stoma, whcih is always open. This is why dumping happens to some people. The stoma has a number of potential problems---strcitures, stretching out (and thereby losing restriction), and marginal ulcers. This is also why you're not suppoed to drink with meals, or for 30 minutes to an hour after a meal---the liquid will push food right through the stoma and you'll be hungry again in no time.
The RNY also has malabsorption---two kinds. Macronutrients/calories, and micronutrients, aka vitamins and minerals. The malabsorption of micronutrients is permanent, but the malabsorption of macronutrients is usually gone by 24 months post-op.
Both the Sleeve and the RNY have about the same success rate, but we don't have a lot of long-term info on the Sleeve yet---it just hasn't been around as a stand-alone surgery long enough yet.
The Sleeve is the stomach portion of the Duodenal Switch, also called the BPD/DS, or, more correctly, the Vertical Sleeve Gastrectomy with Duodenal Switch. The DS has a malabsorption component that gives PERMANENT malabsorption of calories, especially fats. If you're still pre-op, you really should research the DS as well---it's been around since 1988, and it's been shown to have the very BEST long-term, maintained weight loss AND the best resolution or prevention of co-morbs like diabetes and high cholesterol.
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