Gastric bypass surgery is a weight loss surgery to shrink the size of stomach and prevent the patient to eat as much as before. During the surgery, the surgeon re-routes or bypasses part of the digestive system to avoid absorbing much food.
You should know that the gastric bypass is not a reversible procedure. This surgery is done when diet or exercise haven’t worked and the person faces serious health problems because of the obesity or being overweight.
This surgery also helps cure type 2 diabetes. Up to 70% of type 2 diabetic patients are cured or their need for insulin is significantly decreased.
Before surgery the patient will meet with the surgeon for an examination. The surgeon will explain how the procedure is done and let the patient know the risks and complications of the surgery. Some lab tests are required to make sure the patient is in good health for this surgery.
Other general recommendations before the procedure are:
To do the gastric bypass surgery, the patient needs to go under general anesthesia. Depending on the patient's condition, there are two techniques to do the surgery. The traditional technique, in which large and open incisions are made, and the laparoscopical technique, which is done by inserting an instrument through multiple small incisions.
In both techniques, the surgeon cuts part of the upper stomach making a small pouch, then sews it directly to the part of the intestine. As the result, the food bypasses most of the stomach and goes directly to the middle part of the intestine.
The surgeon then stitches the incision part and wraps it with bandages. The patient goes to recovery room and will need to stay in hospital for a few days.
During the bypass surgery, the surgeon re-routes part of the digestive system to avoid absorbing much food.
Pain, tiredness, feeling cold, having dry skin, hair loss, mood changes, vomiting and nausea are normal till 6 months after the gastric bypass surgery.
Gastric bypass reduces the absorption of nutrients and vitamins and you need to take supplements to make up the vitamin and iron for the whole life time.
You will typically need to stay at hospital for 2-3 days before being able to go home. The average time for a full recovery at home after gastric bypass is five weeks but it can vary for different individuals. Below are usually advised to follow: