One anastomosis gastric bypass
What is it
The Laparoscopic one anastomosis gastric bypass is a variant of the Roux- en-Y Gastric Bypass. It has previously been known as the mini gastric bypass. This operation is now very common because of its excellent results. It is particularily good for people with BMI's greater than 40
​
How is it done
​
The operation is keyhole and involves the formation of a 40ml stomach pouch. Then 1.5 to 2m of the small bowel is bypassed by joining the bowel to the bottom of the stomach pouch. No stomach is removed with this operation
Advantages
-
Weight loss 85% of Excess body weight
-
Takes one year to loss the weight
-
Excellent resolution of obesity related conditions.
-
75% of diabetic patients will go into full remission
-
Lower complication rate than Roux en Y Gastric bypass
-
Dumping syndrome, which is very helpful for providing an aversion to the wrong foods, fat or sugar
-
The quality of eating is very good. Able to eat three small healthy meals per day
Considerations
-
Requirement for lifelong daily vitamins
-
Requirement for lifelong yearly blood tests to check vitamin and micronutrient levels
-
6% risk stomach ulcers, which are treated with medical treatment
-
Care must be taken with anti-inflammatories as may cause ulcers
-
1% risk of internal hernia, which require surgery to fix
-
10% risk of reflux