Gastric Bypass Surgery is one of the commonly performed bariatric procedure. It involves creating a stomach pouch out of a small portion of the stomach by specially designed surgical staplers and attaching it directly to the small intestine, bypassing a large part of the stomach and duodenum. This means that when you eat, food bypasses the main part of your stomach and the upper part of your small intestine. In this upper part of your small intestine, your food would normally start to digest and take up (absorbed) by your body. So, with this part of your intestine being bypassed, fewer calories are taken up from the food that you eat. Also, because the new stomach pouch that is created is smaller than the size of your whole stomach, the amount of food that you are able to eat is reduced, thereby restricting calories that you take in.
On the day of surgery, you will be made to walk and do the respiratory exercises. On 1st post op day, you will be allowed to have liquids. You are expected to be discharged on second post-operative day. You will be given a printed diet chart. For best result of surgery, you need to stick to the diet chart along with the other medical advices. For the first 2 weeks, liquid diet is advised followed by semiliquid, soft and then normal diet at every 2 weeks interval. There is no restriction of physical activities.
As large part of small intestine and stomach are bypassed, there will be malabsorption of Iron and Vitamin B12. Postoperative nutritional consequences after LRYGB are largely based on patient compliance with devouring of vitamins and vitamin supplements postoperatively. But it is the small price to pay considering the tremendous positive effect and resolution of morbidities along with weight loss.
Due to development in the field of technology, the Laparoscopic Gastric Bypass surgery has become safer nowadays. Still, in small percentages of patients, complications can happen.
Staple line leakage is seen in <1% of patients. The incidence has been decreased nowadays due to the use of modern stapling devices in surgery.
Bleeding can happen, like in any other surgery, but it can be very well controlled laparoscopically intraoperatively
In about 1-3% of patients, a small ulcer forms at the anastomotic site (the junction of pouch and small intestine). It can be prevented if you stick to post-operative advices of your surgeon
There are two potential spaces (although they are repaired during surgery), through which a portion of small intestine can enter and cause internal hernia (4-7%). It can be repaired laparoscopically. But more importantly, early detection of the suggestive symptoms and proper and early management