Duodenal switch or biliopancreatic diversion with duodenal crossing combines two techniques: sleeve gastrectomy and biliopancreatic bypass.

Duodenal switch is a surgery that consists of reducing the volume of the stomach by 80%, leaving a tube-shaped stomach; together with the modification of the intestine, so that after the surgery only 40% of it is used.

Patients who undergo this operation can lose up to 80% of their excess weight in two years. The greatest decrease occurs in the first months and then this decrease gradually decreases until the patient reaches, generally, what is considered the ideal weight.

If you are interested in the Duodenal Switch Technique but have any doubt, you can request your first free appointment, by video conference, from your place of residence at our clinic in Madrid.

Duodenal Switch



Duodenal Switch

Surgery Duration

Surgery Duration

4 hours.

Admission Time

Admission Time

72 hours.

Type of Anaesthesia

Type of Anaesthesia


Type of Surgery

Type of Surgery


Recovery Time

Recovery Time

10/12 days.



12.000 €

This price includes:

Preoperative tests

Preoperative evaluation

Surgery and Admission

Follow up

Nutritional Monitoring

Follow-up of bariatric surgery with Psychology (includes 2 consultations)

And if necessary in follow-up:

Endoscopic Evaluation

Analytical Evaluation

Eco-graphic Evaluation

Although the duodenal switch with biliopancreatic diversion is very effective, it involves risks such as malnutrition and vitamin deficiency. This procedure is normally recommended for patients who have a BMI over 55.

In the Duodenal Switch the size of the stomach is reduced, as in the sleeve gastrectomy, for this reason the patient feels satiated with less food, that is to say, it has a restrictive component.

Some of the most striking advantages are:

- It is the technique that achieves the greatest weight reduction.

- By removing the major curvature of the stomach, the production of the hormone ghrelin, which controls the feeling of satiety, is eliminated.

- The normal functioning of the stomach is maintained by keeping the pylorus.

- The diseases associated with obesity improve or even disappear.

- It significantly improves the patient's quality of life.

As with any other type of intervention, there are a number of disadvantages and drawbacks. Among the latter are:

- It is a more complex technique to perform.

- Many times patients have to take vitamin supplements after the intervention, because the absorption of some vitamins and minerals can be affected.

As soon as the patient recovers from the intervention, he will start with a liquid diet, generally one week later with purees, after from 4 to 6 weeks with a soft diet and finally with a normal diet but in small quantities, chewing slowly and avoiding carbonated drinks.

The doctor will tell you if you should follow any drug treatment and when to start it. The necessary time off work is around 2/3 weeks, depending on the type of work activity that each person performs.

After leaving the hospital, the patient must follow a strict diet for 3 to 6 months combined with regulated physical activity.

During the first week there may be discomfort in relation to the wounds and some difficulty with food intake. You may also notice different bowel movements and a cramping sensation. Both the person and the new stomach must learn to eat again and coordinate with each other, and the intestines must adjust to their new disposition.

Weight loss is progressive during the first year, being more important during the first 6 months.

The patient must go to monthly medical check-ups during the first 6 months and then annual check-ups, all of these can be done throw video conference from your residence.

If the patient is a woman and wants to get pregnant, our recommendation is that she wait at least one year after surgery. The pregnancy and the development of the baby are not affected by surgery, although closer monitoring by the obstetrician is recommended during the first weeks of gestation.

Your ideal weight

The IMC/BMI is used to classify the state of the person, and is calculated from the formula: weight (kg) / height (m2). This is a common calculation for both men and women. Remember that this nutritional index only applies to adults.

  • IMC/BMI is less than 18.5, it corresponds to "underweight."
  • IMC/BMI between 18.5 and 24.9, "normal" or healthy weight value.
  • IMC/BMI is between 25.0 and 29.9, it corresponds to “overweight”.
  • IMC/BMI is 30.0 or higher, it corresponds to “obesity”.
  • To calculate your IMC/BMI, see the IMC/BMI Calculator.
Last update / January 8, 2024
Clínica Fuensanta
Miembro SECE
Centro autorizado por la Comunidad de Madrid
Miembro SECO
Miembro SEEDO
AE Cirujanos
World Professional Association for Transgender Health
Sociedad Española de Directivos de la Salud
International Federation for the Surgery of Obesity
European College of Aesthetic Medicine & Surgery