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Gastric Bypass

Gastric Bypass

Bariatric surgery is not the easiest option, often the only one, for people with a high body mass index and comorbidities caused by it.

Gastric bypass surgery – is a type of bariatric, or weight loss, surgery, during which changes are made to the stomach and small intestine to change the way they absorb and digest food. Gastric bypass helps you lose weight by limiting the amount of calories and nutrients your body absorbs. Changes in gut hormones that make you feel well-fed longer help suppress appetite and prevent metabolic syndrome caused by obesity.

After surgery, patients need to take vitamins. If they don't, this can lead to long-term vitamin and mineral deficiencies, especially vitamin B12, iron, calcium, and folic acid. The complication rate is slightly higher than after Sleeve gastrectomy. However, with proper care, complications can be avoided.

Indications for surgery

The requirements for the Gastric bypass are the same as for other bariatric surgeries. A patient may qualify for gastric bypass surgery if:

  • Diagnosed with class III obesity, determined by BMI (body mass index).
  • BMI is at least 35 with at least one obesity-related comorbidity.
  • If diagnosed with type 2 diabetes, which is not treated, and BMI is 30 or higher, the patient may qualify for gastric bypass surgery. It has a positive impact on the regulation of blood sugar levels, helping to manage type 2 diabetes.

What are the benefits of Gastric Bypass?

Like other bariatric surgeries, gastric bypass is recommended for people with clinically severe obesity. It has been shown to help alleviate obesity-related comorbidities: type 2 diabetes, hypertension, hyperglycaemia, heart disease, fatty liver disease, sleep apnea, chronic acid reflux, and osteoarthritis.

If a patient is diagnosed with medically significant obesity, only weight loss can noticeably improve health. However, gastric bypass surgery provides more. It makes long-term changes in the metabolic system, helping to control blood sugar levels, blood pressure and hunger.

Preparing for surgery

The patient must undergo health checks before surgery (blood tests, electrocardiogram, abdominal ultrasound, chest X-ray, fibrogastroscopy, anaesthesiologist consultation).

The surgeon will prescribe to exclude carbohydrates from the menu three to four weeks before surgery, basing your diet on protein. The goal is to lose some fat in the abdomen and liver so the operation is safer.

You should not eat or drink anything for 12 hours before surgery. This is necessary for the stomach to be empty during the procedure. Food or liquid left in the stomach during surgery can cause unpleasant or even dangerous side effects.

Postoperative care

The hospital stay after surgery is two to three days. The patient must strictly adhere to his menu, which is specifically designed after bariatric surgery.

The patient will have to undergo examinations after surgery – blood tests (1 month, 3 months, 6 months; 2 times a year). We monitor the progress of the patient's weight loss, associated health conditions and all possible side effects of surgery. In addition, it is important for the patients to take good care of themselves and follow the necessary postoperative lifestyle recommendations in order to maintain their health and lose weight.

Is it necessary to follow a diet after Gastric Bypass?

Strict dietary guidelines will need to be followed in the short term. After a few months, the patient will be able to switch to normal healthy food, but still have to choose meals wisely. Since the patient will not be able to eat as much as before, he will need to make sure that what he eats is nutritious enough to provide enough energy. Vitamins will need to be taken if necessary.

If you have any questions or need additional information, call +371 27331393 or write to


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