Roux-en-Y Gastric Bypass (LRYGB)
	In this procedure, the surgeon creates a small gastric pouch of approximately 30-60ml. The small bowel is then divided and the end brought up and attached to the gastric pouch. In this way, food passes into the pouch and straight down into the lower part of the small bowel. The rest of the stomach and the bypassed part of the small bowel are then re-attached further down. This ensures that the gastric and pancreatic juices enter the small bowel and digest the food. Whilst most of the stomach and upper part of the small bowel is bypassed there is not a significant reduction in the amount of calories and protein absorbed. Most of your weight loss is down to eating less. But patients may develop vitamin and mineral deficiencies – you will need to take tablets daily including a multivitamin and mineral, calcium and vitamin D, Iron, as well as have quarterly vitamin B12 injections. Advantages Weight loss starts from the time of surgery and can be rapid within the first 6 months. You can expect to lose roughly 70 – 80 per cent of your excess weight at 2 years. In most cases, further surgery is not required Patients report decreased hunger and appetite due to hormonal changes Has the highest and fastest remission rate for diabetes (type 2) There can therefore be many benefits to health with weight loss, particularly after obesity surgery particularly gastric bypass. Scientific research demonstrated that gastric bypass surgery can reduce health problems considerably, as shown in the table below: Health improvements after Gastric bypass Health Problem   Gastric bypass Cured of diabetes (Off all medication)   84% Diabetes improved   93% High cholesterol improved   95% High blood pressure (Off all medication)   68% High blood pressure- improved   87% Sleep Apnoea- improved   94%