At Discover Weight Loss, we provide a number of weight loss surgery options including the gastric sleeve, one Anastomosis gastric bypass, roux en y gastric bypass, as well as revisional procedures.
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Gastric Sleeve
One Anastomosis Gastric Bypass
Roux en Y Gastric Bypass
Gastric Sleeve
The gastric sleeve is currently the most popular weight loss procedure around the world.
The gastric sleeve, also known as a sleeve gastrectomy, dramatically reduces the size of your stomach by removing 80-90% of it. This leaves behind a narrow banana shaped pouch with a volume of about half a cup (100-150ml).
This significant reduction in stomach size has two key effects on weight loss:
1. Restriction: With a much smaller stomach, you physically cannot eat large amounts of food. This restriction promotes early satiety, meaning you feel full after smaller meals, naturally reducing your calorie intake.
2. Hormonal changes: The removed portion of the stomach is responsible for producing Ghrelin, a hormone that stimulates hunger. After surgery, ghrelin levels significantly decrease, leading to reduced appetite and less frequent cravings.
Combined, these effects lead to significant weight loss. On average, patients lose 60-70% of their excess weight after gastric sleeve surgery.
One Anastomosis Gastric Bypass (OAGB)
The one anastomosis gastric bypass , also known as the single anastomosis gastric bypass (SAGB) or mini gastric bypass (MGB), is a weight loss operation that achieves its effects through two mechanisms:
- Restriction: A small pouch is created from the upper portion of your stomach, limiting the amount of food you can comfortably eat. This leads to earlier feelings of fullness and reduced calorie intake.
- malabsorption: A section of the small intestine is bypassed, where most nutrients are typically absorbed. This results in fewer calories being extracted from your food, contributing to weight loss.
Additionally, the surgery alters gut hormones that regulate hunger and satiety, further suppressing your appetite and aiding in weight management.
On average, patients undergoing OAGB experience a 60-80% loss of their excess weight. However, it’s important to remember that individual results may vary.
Roux en Y Gastric Bypass (RNYGB)
Over the past 50 years, Roux-en-Y gastric bypass surgery has become a reliable tool for weight loss.
Let’s break down how it works:
1. Remodeling your stomach: A small pouch is crafted from the upper portion of your existing stomach, significantly reducing its volume. This limits the amount of food you can comfortably eat, leading to earlier feelings of fullness and reduced calorie intake (restriction).
2. Bypassing a section of intestine: A portion of your small intestine is rerouted, bypassing the bypassed stomach and the first part of the small intestine. This reduces the surface area available for nutrient absorption, leading to some calorie and nutrient malabsorption.
3. Hormonal shifts: The surgery also impacts gut hormones that regulate hunger and satiety, further contributing to reduced appetite and increased feelings of fullness.
Combined, these effects create a powerful formula for weight loss. On average, individuals undergoing Roux-en-Y gastric bypass experience a 70% loss of their excess weight. However, it’s important to remember that individual results can vary depending on several factors.
Find out more about what’s involved in your weight loss journey.