Let's know everything about Gastric Bypass Surgery for weight loss.

Obesity is a serious health problem that many people face in our country and around the world today. Sometimes, no matter how much exercise and diet you do, it is very difficult to lose weight. It is at times like these that doctors recommend weight loss surgery for some people. So today, let's talk about one such major surgery, the gastric bypass surgery, which many have heard of. Let's simply understand what it really is, how it is done, and what happens after it.

What actually happens with this gastric bypass surgery?

Simply put, this is a two-step surgery. It combines two methods of weight loss. Let's take a look at what those two steps are.

Step 1: Creating a small pouch in the stomach

In this, the surgeon divides your stomach into two parts. One large part, and the other very small part. Then, the small part is sewn or stapled together to form a small pouch. The amount of food that can be put into this small pouch is very small, about the size of a cup to be exact. So because you have such a small stomach, you feel full even after eating a little . So the amount you eat automatically decreases. We call this method a 'restrictive' method. That is, it limits the amount of food you can eat.

Step Two: Bypass

Now, there's that little pouch that's been created, and the doctor separates it from the large part of the stomach and the first part of the small intestine (duodenum). Then, that little pouch is connected directly to a part of the small intestine (jejunum). This surgical procedure is called a "Roux-en-Y." When connected in this way, the food you eat goes directly from that little pouch to the lower part of the small intestine. That is, it bypasses the first part of the small intestine. Because of this, the body absorbs much less of the calories and nutrients in the food you eat. This procedure is called a 'malabsorptive' procedure. Usually, both of these steps are done in the same surgery, and the entire procedure is called a "Roux-en-Y gastric bypass." Most often, surgeons perform this surgery laparoscopically. That is, surgery is performed by inserting a camera and instruments through several small holes, rather than making a large incision in the abdomen. However, in some cases, if this is not possible, surgery may need to be performed through a large incision in the abdomen (laparotomy).

What can you expect after surgery?

Since this is a major surgery, it is important to be aware of certain things. You will need to stay in the hospital for 2 to 3 days after the surgery. It may take about 2 to 3 weeks before you can resume normal activities. As with all surgeries, there are risks and complications. Let's look at these possible complications in the table below. But remember, this risk is very low in hospitals with experienced surgeons who have performed more than 100 such operations . When this operation is performed by an experienced doctor, the risk of death is less than 0.5% (that is, less than one in 200). In addition, the body's absorption of nutrients is reduced, which can lead to long-term deficiencies of things like iron and calcium, which can lead to conditions like anemia and osteoporosis. However, if you take the nutritional supplements prescribed by your doctor exactly and get your blood tests done on time, you can greatly reduce this risk.

What are the results of the surgery?

Weight loss after surgery is often very successful. On average, patients lose about 60% of their excess weight . For example, imagine that a person's ideal weight is 70 kg, but he currently weighs 150 kg. He has 80 kg of excess weight. After this surgery, about 60% of that excess weight, that is, about 48 kg, can be lost. Along with the weight loss, many health problems caused by obesity, such as diabetes, high blood pressure, asthma, and obstructive sleep apnea, can be completely cured or largely controlled .

What other types of weight loss surgeries are available?

If you're considering weight loss surgery, there are several other options besides gastric bypass. Let's take a look at that as well.

Type of surgery	How to do it and important points
Sleeve Gastrectomy	This is the most commonly performed weight loss surgery in the world. In this, about half of the stomach is removed, and the remaining part is shaped into a long tube (sleeve) like an arm. This is also a 'restrictive' procedure.
Vertical Banded Gastroplasty	This is a combination of gastric stapling and banding. However, it is not performed as often anymore due to the high complications and low weight loss.
Biliopancreatic Diversion	This is similar to gastric bypass. However, here the stomach pouch is connected to the lower part of the small intestine (ileum). Therefore, the number of calories absorbed by the body is even lower. However, this is a difficult surgery to perform and the risk of nutritional deficiencies is very high.

Ultimately, having a surgery like this is a big life decision. So before you decide, talk to your doctor about your options, their pros and cons, and what works best for you.

Take-Home Message

• Gastric bypass is a major weight loss surgery that consists of two main steps ( stomach reduction and bypass).
• This can significantly reduce weight and control diseases such as diabetes and high blood pressure .
• As with all surgeries, there are some risks and complications .
• The success of the surgery depends entirely on you permanently changing your lifestyle (diet and exercise) after the surgery.
• This is not a decision to be taken lightly. It is essential to discuss this with your doctor to determine whether this surgery is right for you.