Gastric bypass in Iran


Gastric bypass in Iran: gastric bypass is a weight loss (bariatric) surgery that helps people with obesity to lose weight and improve their health. It alters the digestive system, making it easier to lose weight. We at DoitMedTour do all the arrangements for your trip to Iran to get a gastric bypass surgery done with the best bariatric surgeons Iranian.

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Gastric bypass is the second most common weight loss surgery after gastric sleeve. Studies have shown that gastric bypass patients lose 60 percent of their excess weight and maintain that weight, even ten years after surgery.

Commonly performed using the minimally-invasive laparoscopic surgery, gastric bypass has several variations, the most common version being Roux-en-Y.

Roux-en-Y (roo-en-wy) gastric bypass, is a surgical procedure that involves creating a small pouch from the stomach and connecting the newly created pouch directly to the small intestine. After gastric bypass, swallowed food will go into this small pouch of stomach and then directly into the small intestine, thereby bypassing most of your stomach and the first section of your small intestine. Because of this, your body will not get all of the calories from the food you eat.


The Roux-en-Y gastric bypass works in two ways:

Restriction: it restricts the amount of food you can eat by decreasing the size of the stomach.

Malabsorption: it allows the food you eat to bypass the main part of your stomach and small intestine so that the food you do eat is not fully absorbed, prompting an even faster weight loss.

Because of these two functions, gastric bypass is a restrictive-malabsorptive weight loss surgery.

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Consulting a surgeon before your surgery helps you get a good understanding of the procedure, results, and your life after surgery. Your doctor will advise you about any changes you need to make to medicines and diet in the weeks or days before surgery.

You should stop smoking several weeks before surgery in order to have a satisfactory and safe surgery. Also, you need to avoid taking some medications such as aspirin, ibuprofen (Advil, Motrin), vitamin E, and warfarin for two weeks before surgery.

You will need to have various lab tests and exams before surgery. Do not eat or drink anything the night before your surgery. Arrange for someone to take you home from the hospital and make sure that you will have appropriate post-operative care at home or hotel.


Typically, a gastric bypass is performed under general anesthesia so you will be unconscious during the procedure. Most surgeons perform gastric bypass using the minimally-invasive laparoscopic technique. In this technique, which is also called keyhole surgery, the surgeon makes small incisions in the abdomen through which he/she inserts surgical instruments, a laparoscope (a long instrument with a camera and light at its end, used to see the inside of the body), and a tube to perform the operation.

After making the incisions, the surgeon cuts across the top of the stomach and seals it off from the rest of the stomach. The resulting pouch is about the size of a walnut and can hold a very small amount of food, so your appetite will be reduced dramatically.

The surgeon then cuts the small intestine into two sections and sews the lower section, which is called “Roux limb”, directly onto the pouch. Food then goes into this small pouch of stomach and then directly into the small intestine sewn to it, bypassing most of the stomach and the first section of the small intestine, which is where some calories from food are absorbed. In the end, the end of the duodenum is reattached to the small intestine at a lower point to allow flowing of other digestive juices.

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Typically, you will need to stay in the hospital for 2-3 days following surgery. Depending on the age, weight, overall health, and lifestyle, recovery time can vary for each individual. But the average time for a full recovery at home after gastric bypass is five weeks. You may experience changes as your body reacts to the rapid weight loss in the first three to six months after gastric bypass, including pain, feeling tired, as if you have the flu, feeling cold, dry skin, hair thinning and hair loss, mood changes.

Immediately after surgery, you may have liquids but no solid food as your stomach and intestines begin to heal. You will then move on to pureed food and eventually add solid food to your diet. Some post-op instructions are listed below.


  • Eating is not permitted for the first two days after the operation
  • Liquids and soft foods (whole meal soup, juices, stew, milk and other soft foods with rich nutrition) are recommended for the first two weeks
  • pureed foods are recommended for the second two weeks
  • After 4 weeks, you are permitted to eat solid foods, like fruits, cooked vegetables, and small slices of chicken or meat
  • Eat and drink slowly. If you eat and drink fast and have a sweet tooth, dumping syndrome happens
  • Chew carefully. Food has to become like a pureed food before swallowing
  • Don’t drink while eating
  • Drink 6-8 glasses of water every day during the recovery period
  • Do not eat too much food. Only 30 grams of food is accepted by your stomach after the surgery, or else vomiting and nausea are inevitable
  • Eat organic food
  • Avoid frequent snacking
  • Take vitamin and mineral supplements, including a multivitamin with iron, calcium and vitamin B-12 to ensure you are getting all the nutrients your body needs for a healthy lifestyle
  • Take daily exercises

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In general, gastric bypass and other weight-loss surgeries could be an option for you if:

  • You are committed to losing weight and maintaining your weight loss through lifestyle and gastric bypass diet changes.
  • Your body mass index (BMI) is 40 or higher.
  • Your BMI is 35 to 39.9 (obesity), and you have other medical conditions such as type 2 diabetes, severe sleep apnea, or high blood pressure that may be improved by losing weight.
  • You are fit enough to have a general anesthetic and surgery.
  • You haven’t seen a significant weight loss by dieting and exercising.


Each type of weight loss surgery has some advantages and disadvantages. The main benefits and drawbacks of gastric bypass are as follows:


  • Generally higher average excess weight loss than in patients who have had restrictive surgeries such as sleeve gastrectomy and gastric banding. It means that it is the most effective bariatric surgery.
  • Weight loss will be more rapid after surgery compared to other procedures such as the lap band.
  • It doesn’t require that an external device be placed inside the body.
  • Up to 70% of type 2 diabetic patients are cured or their need for insulin is significantly decreased after gastric bypass.
  • Sleep apnea and high blood pressure are likely to be improved or cured after gastric bypass.
  • Less weight regains, an average of 10 to 13 percent after 10 to 14 years, according to medical studies.
  • You would not feel excessive pain and no scar would remain on your body as it is usually performed laparoscopically.
  • It can be done for people aged 18 to 70.

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  • Since it takes some time for the digestive organs to heal and get used to the new circumstances, recovery time is longer than other procedures (except gastric sleeve).
  • You will have to stick to a low-starch and low-sugar diet because you may experience vomiting and diarrhea.
  • This bariatric surgery reduces the absorption of vitamins and nutrients and you need to take supplements to make up the vitamin and iron.
  • There is a small risk of complications, including bleeding, leakage, infection, and blockage.


There is no doubt that any kind of surgery might cause a number of side effects and complications.

Possible risks of gastric bypass include:

  • Allergic reaction to anesthesia
  • Blood clots in legs (preventable by taking blood-thinning drugs)
  • Leakage in the connection area between the stomach and small intestines
  • Infection
  • Bowel obstruction
  • Dumping syndrome, causing diarrhea, nausea or vomiting
  • Difficulty in swallowing
  • Indigestion
  • Sagging skin
  • Bloating
  • Stomal stenosis
  • Gallstones
  • Hernias
  • Low blood sugar (hypoglycemia)
  • Malnutrition
  • Stomach perforation
  • Ulcers
  • Vomiting

Most of the complications can be prevented by following your surgeon’s instructions and adhering to a healthy diet and lifestyle. Constant visits help you avoid many of the mentioned complications.

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Mini gastric bypass surgery is a simpler less invasive procedure, compared to the regular gastric bypass. During this surgery, a banana-shaped pouch is created in the stomach and then connected to the small intestine through a so-called anastomosis, bypassing a portion of the small intestine. The mini gastric sleeve works the way a Roux-en-Y gastric bypass works.


If you are in a dilemma about whether to opt for a gastric bypass or a gastric sleeve it is important to consider the similarities and differences between the two surgeries in order to make an informed decision.


  • After both gastric bypass and gastric sleeve surgeries you need to stay in hospital.
  • You will eat less after both procedures because your new stomach will hold a small amount of food.
  • The recovery period for both surgeries are almost the same.
  • Both procedures deliver a significant weight loss.
  • Both procedures cannot be reversed.


  • Gastric bypass is usually recommended for extremely obese patients with a BMI over 40, but gastric sleeve can be done for those with BMI 35.
  • Gastric bypass alters how your digestive system handles the food but in the gastric sleeve, the digestion doesn’t change.
  • In the gastric bypass, the stomach is not partially removed from the body while in the gastric sleeve a large portion of the stomach is taken out.

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