14,000 CMC patients already live in a new body. An official contract sets out the result with legal force, not as mere words.
Bariatric Surgery for Patients from Brussels
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
No fees hidden away. No shocks. One package for the whole path.
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
Not just high BMI: associated health conditions also warrant a surgical consultation
Medical history
Excess weight since childhood or a genetic predisposition
Metabolic disorders
Type 2 diabetes and hypertension associated with obesity
Resistance to conservative treatment
Diets and medication have brought no lasting result over several years.
Medical history
Excess weight since childhood or a genetic predisposition
Metabolic disorders
Type 2 diabetes and hypertension associated with obesity
Resistance to conservative treatment
Diets and medication have brought no lasting result over several years.
Surgery is prescribed only when clear criteria are met
BMI is the primary tool for judging obesity. The formula: body weight (kg) divided by height squared (m²). Surgery is typically justified at a BMI above 40, or above 35 if there are serious related conditions. At times surgery is also considered with lower figures — provided non-surgical treatment has failed.
Many people keep trying diets and exercise for years while the body resists: metabolism slows, appetite climbs and the weight they lost comes back. When diet changes and medicines alone clearly cannot fundamentally improve the situation, bariatric surgery turns into the only effective way out.
Key factors
The role of body mass index (BMI)
BMI is the primary tool for judging obesity. The formula: body weight (kg) divided by height squared (m²). Surgery is typically justified at a BMI above 40, or above 35 if there are serious related conditions. At times surgery is also considered with lower figures — provided non-surgical treatment has failed.
Why don't diets and exercise work for everyone?
Many people keep trying diets and exercise for years while the body resists: metabolism slows, appetite climbs and the weight they lost comes back. When diet changes and medicines alone clearly cannot fundamentally improve the situation, bariatric surgery turns into the only effective way out.
With chronic diseases, please get advice from a clinic doctor!
Indications

Excess weight

Type 2 diabetes

Hypertension

Sleep apnea

Joint disease

Varicose veins

Fatty liver disease

Reproductive health problems
Contraindications

Age under 18

Malignant tumors

Less than six months since breastfeeding ended

Acute illness or flare-ups of chronic disease

Severe chronic and mental illness

Blood clotting disorders

Pregnancy

Sleeve gastrectomy
Most of the stomach is removed in the operation, leaving a narrow tube. Portion size falls dramatically and ghrelin, the hunger hormone, declines, meaning the patient gets full much sooner and eats less.
Effectiveness: the method suits a BMI of 35 to 45. On average patients lose 60–70% of their excess weight.
Specifics: the result holds up less well than after bypass operations. If the diet is broken, particularly with high-calorie drinks and liquid food, weight may come back.

Roux-en-Y gastric bypass
The surgeon shapes a small pouch, 50–70 ml, from the top of the stomach and routes it directly to the small intestine. Food intake drops and calorie absorption decreases as food covers a shorter distance in the gut.
Effectiveness: with a BMI over 45–50 and type 2 diabetes, this is the “gold standard”. Excess weight loss is as high as 75–85%.
Specifics: compared with other bariatric methods, the result is more stable. Conditions like diabetes and hypertension commonly go into remission. The altered digestive anatomy requires lifelong vitamin and mineral supplements.

Mini gastric bypass (MGB)
An advanced version of the classic bypass. Differing from the standard method, it involves only one connection (anastomosis) from the small stomach to the small intestine. The simpler technique is gentler on patients and needs a shorter recovery period.
Effectiveness: close to the classic Roux-en-Y bypass, with patients losing up to 75–80% of excess weight.
Specifics: less time in surgery and a faster recovery. Technically the procedure is reversible, though the single anastomosis brings a risk of bile reflux.

Single anastomosis duodeno-ileal bypass (SADI-S)
SADI-S is an up-to-date combined technique joining the strengths of sleeve gastrectomy and intestinal bypass. There are two stages: the stomach is first made into a narrow tube, and then the small intestine is rerouted to exclude most of it from active digestion.
Effectiveness: among bariatric operations, one of the most powerful — 80–90% of excess weight goes, and it lasts long.
Specifics: a smaller stomach reduces appetite by removing the ghrelin-producing zone, and rerouting food past part of the intestine limits calorie absorption. It suits super obesity (BMI over 50), severe type 2 diabetes, or as a second stage after an ineffective sleeve.
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Step one is a consultation with the surgeon: your history, the right method and a recovery plan

Lab tests
Tests: complete blood count, urinalysis, biochemistry, HbA1c, coagulation panel (clotting).
Instrumental diagnostics
Chest X-ray and ECG, abdominal and renal ultrasound, Doppler of leg veins.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
GP, cardiologist, endocrinologist, psychiatrist, and a gynecologist for women.

Diet
2–4 weeks before the operation, limit fast carbs and fats; the day prior, eat only light meals.
Lifestyle
Stop smoking a month in advance, reduce exercise and keep stress to a minimum.
The day before
Last light meal the evening before; stop fluids 3–4 hours before surgery.

Lab tests
Tests: complete blood count, urinalysis, biochemistry, HbA1c, coagulation panel (clotting).
Instrumental diagnostics
Chest X-ray and ECG, abdominal and renal ultrasound, Doppler of leg veins.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
GP, cardiologist, endocrinologist, psychiatrist, and a gynecologist for women.

Diet
2–4 weeks before the operation, limit fast carbs and fats; the day prior, eat only light meals.
Lifestyle
Stop smoking a month in advance, reduce exercise and keep stress to a minimum.
The day before
Last light meal the evening before; stop fluids 3–4 hours before surgery.
Veteran bariatric surgeons who truly care about their patients' health

Ruslan S. Menzulin
Bariatric surgeon · surgical oncologist
Studied at Mercy clinic under Vadim Gushchin and gave a talk at the World Congress of bariatric surgery in 2025. Co-author of international research published in The Lancet.

Andrey G. Ugay
Lead bariatric surgeon · surgeon
Has carried out the largest number of SASJ operations in the country. Serves on the expert council of the national Society of Bariatric Surgeons and presents regularly at national and international congresses.
City Medical Centre takes a comprehensive approach to obesity. After the first examination, each patient gets a personal diagnostic program (lab and instrumental) to identify every disorder in the body.

A method matched to your goal
The surgical method is selected individually by our doctors for every patient. Your health, weight history and related conditions are reviewed first, so the most suitable surgical treatment can be offered.

Support that stays in touch
City Medical Centre's team stays with you once surgery is over. During the first year, specialists monitor your weight loss and test results and answer any questions on diet and recovery.

Fast recovery
The laparoscopic approach to bariatric operations at City Medical Centre greatly reduces recovery. Most patients are mobile on day one and return to everyday life within a week.

Full diagnostics on site
No running from clinic to clinic. Our centre has everything for your work-up, from its own lab to ultrasound and gastroscopy. Preparation is fast, queue-free and all under one roof.
Recovery is mostly down to the individual; still, minimally invasive laparoscopic methods keep rehabilitation as short as possible.

Duration
Observation at the clinic lasts 1 to 5 days, based on how extensive the surgery is and on related conditions.
Activity
Within the first hours after surgery you may sit up, stand and drink fluids.
Wound care
Absorbable sutures are used; they dissolve on their own.

Work
You can return to work 7–14 days after surgery, depending on how physical your job is.
Restrictions
In the early weeks, intense exercise, sauna and bathhouse are ruled out.
Diet
The stomach adapts through a staged diet over 1–2 months, progressing from liquids to solids.

Pace
Patients sticking to the specialists' advice shed on average 10% of excess weight per month.
Stabilization
Reaching the final result takes 1.5–2 years. The patient has by then built steady eating habits that prevent weight from returning.
Important! Recovery is supervised by City Medical Centre specialists, who provide psychological and medical support at every stage of weight loss.

Duration
Observation at the clinic lasts 1 to 5 days, based on how extensive the surgery is and on related conditions.
Activity
Within the first hours after surgery you may sit up, stand and drink fluids.
Wound care
Absorbable sutures are used; they dissolve on their own.

Work
You can return to work 7–14 days after surgery, depending on how physical your job is.
Restrictions
In the early weeks, intense exercise, sauna and bathhouse are ruled out.
Diet
The stomach adapts through a staged diet over 1–2 months, progressing from liquids to solids.

Pace
Patients sticking to the specialists' advice shed on average 10% of excess weight per month.
Stabilization
Reaching the final result takes 1.5–2 years. The patient has by then built steady eating habits that prevent weight from returning.
Important! Recovery is supervised by City Medical Centre specialists, who provide psychological and medical support at every stage of weight loss.
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Book a consultation
Call or message us -
our coordinator will contact you shortly
and book your consultation
Bariatric vs plastic surgery: what's the difference?
The two are often confused, yet their goals differ fundamentally. Bariatric surgery is a medical treatment for obesity and its related diseases. It alters how the digestive tract works, tackling the causes of excess weight and metabolism. Plastic surgery changes the body's outer contours; it neither treats obesity nor affects metabolism.
How soon can I return to work and normal life?
Will there be visible scars?
Modern laparoscopic technique is what we use. Just 4 small punctures of 5 to 15 mm are needed for the operation. Cosmetic sutures mean the marks are nearly invisible after healing.
What diet do I need to follow?
In stages, your diet goes from liquid to soft to solid food. The main focus is protein and restricting high-calorie, fatty food.
What types of bariatric surgery are there?
Four main bariatric surgery types are available at City Medical Centre: sleeve gastrectomy, Roux-en-Y gastric bypass, mini gastric bypass (MGB) and SADI-S duodeno-ileal bypass. The method is picked individually, considering BMI, related conditions and the patient's goals.
Can I plan a pregnancy after surgery?
Pregnancy is an option after bariatric surgery, but doctors advise waiting at least 12–18 months. By then the body has stabilized, weight has reached target values and nutritional status has normalized.
Do I need to take vitamins after surgery?
Yes, after bariatric surgery vitamins cannot be skipped. As the digestive anatomy changes, some nutrients are absorbed less well, making regular vitamin and mineral supplements a permanent feature of the patient's life.
Can the weight come back?
Regain after bariatric surgery is possible, but very unlikely if you follow the doctor's advice. Proper nutrition, no high-calorie drinks and regular follow-up visits with City Medical Centre specialists make the difference.
Leave a request by the end of the month: a free consultation on any service
Service
Discounted price
Roux-en-Y gastric bypass creates a small 50–70 ml pouch at the top of the stomach and connects it straight to the small intestine. It is considered the gold standard for a BMI over 45–50 with type 2 diabetes, bringing excess weight loss of 75–85%. Anyone researching bypass in Brussels should know that it requires lifelong vitamin and mineral supplements.
The final result is reached in 1.5–2 years. Throughout the first year the team tracks weight loss, monitors tests and answers questions about diet and recovery, providing psychological and medical support at every stage. For patients in Brussels, regular follow-up with specialists and avoiding high-calorie drinks are the keys to keeping the result for good.
If you are comparing bariatric surgery options in Brussels, look beyond the operation itself. Here the package bundles the work-up in the centre's own lab, laparoscopic surgery, the stay with meals and nursing, a doctor on hand 24/7 and a year of follow-up. Apply for a free surgeon consultation to see how this applies to your case.
This website uses cookies. By continuing to use it, you agree to the Privacy Policy and data processing terms
Apply before the end of the year and get a consultation at the clinic's expense!