Gastric sleeve vs. gastric bypass: which is the best operation for you?

Gastric sleeve vs. gastric bypass

Gastric sleeve vs. gastric bypass, Which is best and why? Are you still unsure which of the two surgeries is better for weight loss or which is safer? In this post, we will answer all your questions.

Both gastric bypass and gastric sleeve are bariatric surgeries, meaning surgical operations used for rapid weight loss and to treat problems arising from morbid obesity.

Although both are very effective at helping you lose a significant amount of weight, they have key differences, especially in the types of procedures involved.

Therefore, to understand what the best operation for you might be, you need to know what each one entails. Here's more information.

What is gastric sleeve?

The gastric sleeve, also called vertical gastrectomy, is a bariatric surgery that involves making a cut in the stomach that reduces its volume by 80%. This percentage of the stomach is removed. It is a simple and minimally invasive procedure.

The gastric sleeve is very effective, it is the procedure preferred by many surgeons because it does not alter the digestive system, only the stomach is reduced. 

In other words, recovery and postoperative treatment will be simpler, and you are unlikely to have malabsorption disorders, or in other words, you will absorb fewer vitamins.

Additionally, gastric sleeve surgery reduces the production of the hormone ghrelin (which stimulates appetite). This will allow you to feel full prematurely, so you won't need to eat as much.

However, gastric sleeve does not offer results as quickly as bypass. Weight loss can take between 1 to 2 years, and only after that time will you have the most noticeable results.

What is gastric bypass?

The gastric bypass, also known as gastric bypass, is a bariatric surgery that involves making a cut in the stomach that divides it into two, a small part will connect to the digestive tract with the large intestine and the rest will connect directly to the intestine.

The process reduces weight by 80%% with rapid results, you will see the physical change within a month of undergoing surgery.

Furthermore, the surgery is safe and minimally invasive, and it is the most effective operation for weight loss.

Gastric bypass has many pros and cons. First of all, it's a reversible surgery because it doesn't remove parts of the stomach like gastric sleeve. However, you'll very likely suffer from malabsorption syndrome and have to take vitamin supplements for the rest of your life.

On the other hand, gastric bypass is a more complex surgery than gastric sleeve, making it more expensive and requiring more care. However, the results are much more noticeable in less time.

What is the difference between gastric sleeve and bypass?

Both gastric sleeve and gastric bypass have several differences. Let's look at some of the main ones:

In gastric sleeve surgery, part of the stomach is cut out and removed.

While with gastric sleeve around 80%% of the stomach is cut, with gastric bypass it is simply divided into two, a small part and a larger one. Both parts will remain divided but will be connected independently to the large intestine.

2. Gastric bypass is more complex

Although both surgeries require a specialist and have their risks, gastric bypass is a more complex operation than gastric sleeve. While the latter takes about 1 hour and 40 minutes, gastric bypass takes 2 hours and 45 minutes.

3. Weight loss is faster with gastric bypass.

Both surgeries are effective for weight loss, but the time in which their results are noticed varies greatly. 

While with the gastric sleeve, you will have to wait between 1 or 2 years to see physical results, with gastric bypass, you will see results within a few months. In fact, in the first month, you will likely see a significant difference in weight loss.

This is why, the changes between the before and after gastric bypass tend to be more pronounced, even in short periods of time.

4. Gastric bypass surgery requires more post-operative care.

Recovery with the gastric sleeve is faster than with gastric bypass. 

Additionally, it is unlikely that you will need to take vitamin supplements with the sleeve because, by not dividing parts of the stomach, you will not suffer from malabsorption syndrome. In contrast, with bypass, you will have to take supplements for life.

5. With gastric sleeve surgery, you will feel less hungry

This is one of the most significant differences between gastric sleeve and bypass. 

Basically, with gastric sleeve surgery, you won't feel as much desire to eat because this operation decreases the production of the hormone ghrelin. 

In contrast, with the bypass, you will feel hunger in a usual way because the production of this hormone is not reduced. Therefore, you will have to follow a rigorous diet with several meals a day.

Gastric sleeve or bypass

What is better, gastric sleeve or gastric bypass?

If you're looking for maximum effectiveness and are interested in rapid weight loss, gastric bypass is the best operation. However, you'll always need to consider your health conditions, and it's also important to remember that it's a more delicate procedure than gastric sleeve.

On the other hand, gastric sleeve takes longer to show results, but offers a faster postoperative recovery and requires less long-term care, and is also less expensive.

In any case, remember, choosing bariatric surgery for yourself does not only involve considering how much does gastric bypass cost not the gastric sleeve or its advantages, but rather to understand which one best suits you, your goals, and your health situation. In all of this, the guidance of an experienced bariatric surgeon is essential.

Dr Cristóbal Garza Bariatric Surgeon

Dr. Cristobal Garza

I am a bariatric surgeon certified by the Mexican College of Obesity Surgery. Over the last 10 years, I have helped more than 3,500 patients overcome their obesity and live a happier, healthier life.

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