Roux-en-Y Gastric Bypass (RYGB)

Gastric bypass is an effective weight loss procedure which limits the amount of food you eat as well as reduces calorie absorption. You can expect to lose 70% of excess weight within 12 to 18 months after surgery. 

What is a Roux-En-Y gastric bypass?

Roux-En-Y gastric bypass surgery, often referred to as RYGB or simply as ‘gastric bypass’, is a weight loss procedure that involves creating a small pouch from the stomach and connecting it directly to the small intestine. 
Laparoscopic bypass surgery is a minimally invasive weight loss procedure performed under general anaesthesia. During this procedure, we make a few small incisions in the abdomen. A laparoscope (a thin tube with a camera at the end) is inserted in one of these incisions. This allows us to get a clear vision on a screen in the operating theatre. 
With gastric bypass surgery, your stomach is reduced in size, and you will feel full after eating less, reducing calorie intake. This reduction in stomach size is the restrictive component of the surgery. 
However, there is also a malabsorptive component with gastric bypass surgery. The rerouting of your small intestines means that not only are you eating less, your body also absorbs fewer calories and nutrients from the food you consume.
Gastric bypass surgery also impacts the production of hunger hormones. After the procedure these hormones typically decrease. This can significantly reduce feelings of hunger.