Gastric Sleeve: Weight loss with safe and effective surgery
From 220€/mes
Surgery duration
60 mints
Anesthesia
General
Postoperative rest
48 hours
Visible effects
Immediately
Recovery
3 days
Results
Life-long
We are not a franchise
We have our own medical team
What is the gastric sleeve?
The gastric sleeve, also known as sleeve gastrectomy, is a surgery that permanently reduces the size of the stomach by removing up to 80% of its volume, leaving a small tube-shaped portion. This limits the amount of food that can be consumed, controls hunger, and promotes sustained weight loss. Besides being one of the most effective bariatric procedures, it improves overall health and quality of life, helping to manage conditions such as diabetes and hypertension.
How is a gastric sleeve procedure performed?
The procedure is done under general anesthesia using laparoscopic surgery, which involves small surgical incisions. During the surgery, up to 80% of the stomach is removed, leaving only a tube-shaped portion called the "sleeve." This change in stomach anatomy reduces its capacity and increases feelings of fullness, allowing patients to feel satisfied with smaller portions of food. As a minimally invasive procedure, the hospitalization time is shorter, and recovery is quicker, with most patients resuming normal activities within a few weeks.

Who is a good candidate for gastric sleeve?
The gastric sleeve is ideal for individuals with a BMI (body mass index) between 35 and 40 or those suffering from weight-related conditions such as type 2 diabetes, hypertension, or sleep apnea. It is also recommended for those who have not had success with traditional methods like diet and exercise. The procedure is suitable for individuals over the age of 18, and a personalized evaluation from our specialists is required. A commitment to adopting lifestyle changes, including diet, exercise, and attending follow-up appointments, is crucial to achieving sustainable results.
Pre-Surgery tests for gastric sleeve
Before surgery, a series of tests and preparations are necessary to ensure you are in the best possible condition. These include:
- Comprehensive medical evaluation: Includes blood tests, imaging studies, and a preoperative consultation with the specialist.
- Management of chronic conditions:
- If you have diabetes or other chronic illnesses, they must be under control before surgery.
- Small, frequent meals: Eat 5–6 times a day in small portions.
- Avoid mixing liquids and solids: Keep them separate during meals.
- Prioritize liquids: Exclude sugary drinks and carbonated beverages.
- Avoid whole grains: Remove whole grain products from your diet.
- Follow medical advice: Stick to your doctor’s recommendations.
For more guidance, contact us for a free consultation with our specialists.

Postoperative care for gastric sleeve surgery
For a successful recovery after a gastric sleeve procedure, follow this guide:
- Medical instructions: Follow all directions regarding medications, physical activity, and diet.
- Diet: Start with a liquid diet, then move to soft foods, and finally to a regular diet under nutritional supervision.
- Physical activity: Begin with short walks and gradually increase intensity.
- Emotional support: Seek support from family or support groups to help navigate challenges.
- Medical monitoring: Attend regular follow-up appointments to detect any complications early.
This approach ensures effective long-term recovery and maintenance.
Significant weight loss
Improved metabolic health
Sustainable results
Rapid recovery
What is the cost of a gastric sleeve?
The cost of gastric sleeve surgery varies and can only be determined through a specialist consultation. At EGOS, we offer a free consultation with a specialist to establish the exact price for your procedure.
Factors that influence the price of gastric sleeve
- Duration of Hospitalization: The length of time spent in the hospital post-surgery will affect the total cost.
- Preoperative Tests: Necessary studies and tests before surgery, such as blood tests, X-rays, and psychological evaluations, can influence the cost.
- Postoperative Follow-up: The number of required check-ups and post-surgery care may increase the overall cost.
- Surgical Team and Technology Used: Advanced technology or specialized equipment may contribute to higher costs.
- Additional Treatments: Long-term vitamin supplements or nutritional treatments will also affect the total cost of the procedure.

Where can i undergo a gastric sleeve?
At EGOS Clinic, we offer the gastric sleeve procedure at several of our locations, providing easy access to the treatment you need in a convenient, nearby location.
Frequently asked questions about gastric sleeve surgery
What are the risk factors associated with gastric sleeve surgery?
The risks associated with gastric sleeve surgery include:
- Infection: As with any surgery, there is a risk of infection at the incision site or in the stomach area.
- Gastric leaks: The newly sectioned stomach may leak, which can lead to serious complications.
- Blood clots: There's a risk of developing clots in the legs or lungs (thrombosis or embolism).
- Acid reflux: Some people experience increased gastroesophageal reflux after surgery.
- Nutritional deficiencies: Reduced absorption of certain nutrients can lead to vitamin and mineral deficiencies.
- Gastric stenosis: In some cases, the remaining part of the stomach can narrow, making it difficult to eat.
- Nausea and vomiting: During the adaptation to the new stomach size, episodes of nausea or vomiting may occur.
How much weight can I lose?
On average, patients lose between 50% and 70% of their excess weight within 12–18 months after surgery, as long as they maintain healthy habits.
Does the procedure affect digestion?
It doesn’t significantly affect digestion, but the reduced food intake may limit the absorption of certain nutrients. That’s why it’s important to take vitamin supplements as prescribed by your doctor.
Can I get pregnant after the procedure?
Yes, but it’s recommended to wait 12 to 18 months until your weight stabilizes before becoming pregnant.
Is it necessary to take supplements after gastric sleeve surgery?
Yes, lifelong vitamin and mineral supplementation is recommended to prevent nutritional deficiencies.
How does it affect nutrient absorption and long-term health?
Gastric sleeve surgery reduces stomach size, limiting intake. This may affect absorption of nutrients like vitamin B12, iron, calcium, and vitamin D. Following medical advice and taking supplements is essential.
Is a specific diet or lifestyle change necessary after surgery?
Yes. You’ll need to follow a specific diet and adopt new lifestyle habits. Initially, only liquids and soft foods are consumed, then solids are gradually introduced. Eat small portions, avoid fatty and sugary foods, and exercise regularly.
What are the first foods I can eat after surgery?
The first weeks begin with a liquid diet (broths, sugar-free juices). At 2 weeks, soft foods like purées, low-fat yogurt, and liquid proteins can be introduced. Solid foods can be gradually added at 4–6 weeks in small amounts.
Will I need a specific exercise plan after surgery?
Yes. Avoid intense exercise during the first 4 weeks; start with walking. From week 6, you can add more intense activities like cardio or strength training.
Is it possible for the stomach to stretch after a sleeve?
Although the procedure permanently reduces stomach volume, over time, excessive food intake may slightly stretch it. However, if healthy habits are maintained, the effects of surgery are usually not reversed.
When can I fly after surgery?
It’s usually recommended to wait at least 2 weeks after surgery. Stay well hydrated and avoid fatigue during the flight.
What should I do if I feel hungry after surgery?
It’s normal to feel occasional hunger, but you need to distinguish between physical and emotional hunger. Protein- and fiber-rich foods help you feel full. During the initial stages, follow the prescribed liquid and purée diet.
Is gastric sleeve surgery reversible?
No. Gastric sleeve is a permanent procedure, as it involves the removal of a large part of the stomach and cannot be reversed.

Treatments related to gastric sleeve surgery
Our weight loss team

Dr. Ricard Sorio
The gastric sleeve is a technique that I, as a specialist, have always recommended to patients seeking a significant and sustainable change in their health and quality of life. My main goal with this surgery is to reduce the size of the stomach in order to limit the amount of food a person can eat, without altering the normal functioning of the digestive system. This not only supports effective weight loss but also helps improve the patient’s metabolic health. What makes me most proud is witnessing how, little by little, my patients regain their energy, confidence, and vitality after the procedure with a lasting impact on their overall well-being.
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Dr. Carlos Rodríguez
The gastric sleeve has transformed how we treat obesity in our clinic, and I am deeply committed to ensuring the long-term safety and success of my patients. I always emphasize that this procedure is not just a tool for weight loss it is also an effective way to reverse or improve related conditions such as type 2 diabetes, high blood pressure, and sleep apnea. What sets me apart is my personalized approach and the close relationship I maintain with each patient throughout the entire process, from the very first consultation to postoperative follow-up. Knowing that this procedure can truly change lives is what drives me to continuously refine my technique, day after day.
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