The biliopancreatic bypass technique leaves a small stomach, with a capacity of 100 to 200 c.c., but with a very large exit of food from the stomach. Currently, it is the antiobesity surgical technique that allows the patient to ingest a greater amount of food.

A more aggressive intestinal bypass is performed from the functional point of view, so that bile and pancreatic juice only mix with food in the last 60/80 cm. small intestine. This surgery is the one that requires a stricter postoperative control.

If you are interested in biliopancreatic bypass 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.

Biliopancreatic Bypass



Biliopancreatic Bypass

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

The biliopancreatic bypass is considered a mixed restrictive-malabsorptive technique. It consists of delaying the contact of ingested food with the bile and pancreatic secretion as much as possible, so that the absorption of fats and starch is made difficult.

The consequence is that, by means of an intestinal short circuit and a horizontal subtotal gastrectomy that reduces the amount of food to be eaten, the patient is able to lose weight without seeing substantial alterations in protein absorption. But the absorption of other substances such as vitamin B12, fat-soluble vitamins and folic acid would be affected.

First of all, less food is eaten due to the reduction of the stomach. This mechanism is only useful in the first postoperative months, it is not the objective of this intervention but it helps the patient to get used to eating less.

Second, there is a significant reduction in food absorption, due to the existence of a long bypass.

Third, there is a very important decrease in the absorption of fats, because they are practically only absorbed in the last 60 cm of the small intestine, in the part where bile mixes with food.

In this technique we don't do any change in the stomach located close to the esophagus, in contrast with most bariatric procedures. That's the reason why we consider it the procedure of choice in secondary operations in which a gastric band has to be removed. In such a situation, we'll find in the high stomach, in which the gastric band is placed, a fibrotic tissue, the worst tissue for wound healing, therefore we have to avoid any bariatric procedure that has to place wounds and stitches in that area. The risk to place stitches in a fibrotic tissue is the wound leak, a life-threating complication. If we perform a biliopancreatic by pass instead of other techniques when we have to remove a gastric band, this complication is avoided.

This technique or any other bypass surgery is the first choice in patients with morbid obesity with metabolic syndrome, that is, risk factors such as diabetes, high blood pressure or apneas that are seriously affecting their health.

The surgeon will determine if the patient is suitable for this surgery.

It is possible to lose between 70 and 80 percent of excess weight in two years. However, the weight each patient loses also depends on the changes they make in their lifestyle.

It is important for the patient to attend all follow-up visits after weight loss surgery so that the surgeon can monitor their progress. If the patient notices that he is not losing weight or that any complications arise after the surgery, he should immediately consult with the surgeon. All the consultations can be done throw a video conference from your residence.

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