Differences Between Gastric Sleeve and Gastric Bypass

Excess weight is one of the most serious problems of our time. Often the reason is the reluctance to control appetite. Gastric sleeve and gastric bypass are among the various modern and effective ways for gastric reduction operations.
Differences Between Gastric Sleeve and Gastric Bypass in Turkey Fibemed Healthcare
What is gastric sleeve surgery; It is the longitudinal suturing of the sides of the stomach after the stomach is removed after the surgery. The organ takes the form of a tube. The capacity of the stomach is reduced by 5 times. In the operation performed to shrink the stomach, the part where the hunger hormone ghrelin is produced is removed. Due to the decrease in the hunger hormone, the person loses his appetite.

In recent years, gastric sleeve has become the most commonly applied method worldwide. It has risen to the top of the bariatric surgery list. This operation ranks between gastric band and gastric bypass in terms of practical complexity.

What is gastric bypass; gastric bypass surgery is a reduction and absorption restriction surgery. In gastric bypass surgery, which can be performed laparoscopically or with a robot, the technique involves creating a 15-30 ml gastric bag from the upper part of the stomach and bypassing the rest of the stomach to the small intestine.

That is, some of this food is not absorbed during digestion as it limits the amount of food one can consume.

Differences Between Gastric Sleeve and Gastric Bypass in Turkey Fibemed Healthcare

Before Gastric Sleeve and Gastric Bypass Treatment
Before starting obesity treatment with stomach reduction, it is necessary to determine the stage of the disease; 1 – 2 – Stage 3. Stage 1 is the lowest risk. Stage 3 is at high risk. In order to perform a stomach reduction operation, the cause of the problem must be determined.

Diagnosis of obesity is carried out using the following methods:

  • Blood test
  • Radiography
  • ECG
  • Stomach biopsy

After completing the diagnosis, the treatment process begins. The problem of obesity can be solved in various ways, but a large percentage of patients prefer to reduce the volume of the stomach. Therefore, a choice must be made between gastric sleeve and gastric bypass.

Which Weight Loss Surgery Is Better?
There are many types of weight loss surgery; The choice is made from person to person, depending on body mass index and physical evaluation by specialist doctors.

  • Gastric sleeve surgery; This procedure involves only stomach surgery and does not involve the intestines. A large portion of the stomach is cut along the longer curvature and surgically removed. The stomach remains about 20% of its original size. The result is a banana structure. A newer, smaller stomach restricts food intake, allowing you to consume small amounts of food in one sitting. Due to the removal of the fundus, you experience a feeling of fullness faster. The operation itself takes about 50-60 minutes.
  • Gastric Bypass; It forms a small ventricle, the volume of which varies between 20 ml and 50 ml. The surgeon makes the stomach smaller by cutting the upper part of the organ, and then a loop of small intestine is tied to the remaining stomach with threads. Thus, the food will be eliminated from the body through the shortcut. Since not all food will be absorbed, fat will not be stored in the body. There are two types, Mini and Roux-en-Y.


Mini Gastric Bypass
In this technique, the first 80-150 cm of the small intestine is excluded and the food is absorbed only in the remaining small intestine.

Roux-en-Y Gastric Bypass
In this procedure, the entire small intestine is excluded, except for the last 100-150 cm where food will be absorbed. The small pouch of the stomach makes it possible for the patient to feel full after consuming a small amount of food. Food that passes from the stomach sac to the small intestine is not immediately absorbed. It bypasses part of the small intestine and is absorbed in the rest. Thus, a small portion of the food is consumed, partially digested and absorbed.

Differences Between Gastric Sleeve and Gastric Bypass in Turkey Fibemed Healthcare

Gastric Sleeve And Gastric Bypass; Differences, Advantages and Disadvantages
Gastric sleeve and gastric bypass differences start from the way the surgery is performed.

For the gastric sleeve, the intestines are not touched, but the gastric bypass is about connecting the intestines briefly.
In sleeve gastrectomy surgery, the stomach remains like a long banana, but in gastric bypass, there is almost no stomach left, and food is sent directly to the small intestine.
In gastric sleeve surgery, the digestive system works regularly. In gastric bypass, some steps are skipped.

Advantages of Gastric Sleeve Surgery
The valve at the exit from the stomach remains, allowing the stomach to empty normally, creating a feeling of satiety.

  • Supports oral access to the gastrointestinal tract and biliary tract
  • Limits more than malabsorption
  • Less vitamin and mineral deficiencies occur

Advantages of Gastric Bypass Surgery
The main advantage of gastric bypass surgery is that the patient loses weight quickly without any complications. However, the diet recommended by your doctor should be strictly followed immediately after the bypass surgery.

Disadvantages of Gastric Sleeve and Gastric Bypass

The disadvantages of gastric sleeve and gastric bypass surgery are almost the same. Only the proportions differ.

  • Gastric sleeve surgery and gastric bypass are irreversible surgery.
  • Because of surgical complexity, they require enhanced postoperative rehabilitation
  • The hospital stay lasts for 4-5 days after the operation.
  • Vitamin B12 deficiency develops in 10% of cases in gastrsc sleeve. In gastric bypass, this rate is 90%. Because the factor region responsible for the absorption of vitamin B12 into the blood is removed during the operation, so it is essential to take B12 pills in the diet.
  • Heartburn develops in 50% of patients. With the preservation of the valve between the stomach and the esophagus in tube stomach, this rate may decrease further ( 5%).

Differences Between Gastric Sleeve and Gastric Bypass in Turkey Fibemed Healthcare

After Gastric Sleeve surgery, body weight is reduced as follows:

  • 33-58% after 2 years
  • 58-72% after 3-6 years

After gastric bypass surgery, body weight is reduced by:

  • 50-65% after 2 years
  • Although most people regain weight, most of the weight lost can be maintained for up to 10 years after Roux-en-Y gastric bypass surgery.

Are There Any Differences in Recovery Times?

  • Gastric sleeve surgery recovery time also varies from 2 to 4 weeks depending on the patient. Dumping syndrome can also occur after this surgery. However, your time to recover from the syndrome is shorter.
  • Recovery time for gastric bypass is 2 to 4 weeks. You may experience dumping syndrome during this time or for months longer.

The following tips can help you avoid digestive problems and discomfort:

  • Eat in small portions.
  • Chew food thoroughly.
  • Avoid foods high in fat and sugar, such as convenience foods, cakes, and cookies.
  • Eat only a small amount of food at each meal.
  • Do not drink water while eating solid food.
  • When you follow these details, dumping syndrome is reduced. Your weight loss rate will increase.
  • You should start walking or doing leg exercises the day after the surgery.
  • To avoid blood clots, you should not lie in bed for a long time.
  • After about 1 week, you can return to your normal activities and after a few weeks do normal exercise (such as aerobics or strength training).
  • You should wait for your doctor's approval to start lifting weights. Generally, you should avoid heavy sports activities for 6 weeks.
  • Exercises prevent your body from sagging while losing weight. Therefore, you should exercise gradually. If you don't exercise then you need to have plastic surgery for sagging skin.


Remember; You may feel pain, nausea and vomiting. Constipation is common. To get rid of constipation, you should drink more water and avoid lying in bed. The important point in drinking water is not to drink water 2 hours before and after a meal. In the remaining periods, you should drink sips of water.

Gastric sleeve and Gastric bypass surgeries in Turkey are both very high quality and you can have them done at a very affordable price thanks to the exchange rate advantage in Turkish Lira. You can reach Fibemed Healthcare from the form below or whatsapp line to get a price quote.

Differences Between Gastric Sleeve and Gastric Bypass in Turkey Fibemed Healthcare

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