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Laparoscopic Bariatric Surgery in Vienna
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
All costs upfront, no surprises. One package, the full journey.
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
Related conditions, not just a high BMI, can be grounds for 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
Years of diets and medication without any lasting result.
Medical history
Excess weight since childhood or a genetic predisposition
Metabolic disorders
Type 2 diabetes and hypertension associated with obesity
Resistance to conservative treatment
Years of diets and medication without any lasting result.
Surgery is prescribed only when clear criteria are met
To gauge obesity, doctors rely primarily on BMI, which equals body weight (kg) divided by the square of height (m²). An operation is usually warranted with a BMI over 40, or over 35 with serious associated conditions. Occasionally surgery is weighed at lower values as well, once non-surgical options have failed.
It is common to try various diets and exercise for years while the body resists — slower metabolism, stronger appetite, returning weight. When it becomes evident that diet changes and medication by themselves cannot fundamentally help, bariatric surgery becomes the only effective solution.
Key factors
The role of body mass index (BMI)
To gauge obesity, doctors rely primarily on BMI, which equals body weight (kg) divided by the square of height (m²). An operation is usually warranted with a BMI over 40, or over 35 with serious associated conditions. Occasionally surgery is weighed at lower values as well, once non-surgical options have failed.
Why don't diets and exercise work for everyone?
It is common to try various diets and exercise for years while the body resists — slower metabolism, stronger appetite, returning weight. When it becomes evident that diet changes and medication by themselves cannot fundamentally help, bariatric surgery becomes the only effective solution.
Have chronic conditions? Please consult one of the clinic's doctors!
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
During surgery the surgeon removes most of the stomach, turning it into a narrow tube. This greatly reduces portion size and lowers ghrelin, the hunger hormone, so the patient feels full much faster and eats less.
Effectiveness: fits patients with a BMI of 35 to 45. They lose 60–70% of excess weight on average.
Specifics: durability is lower than with bypass operations. If the diet slips, especially with high-calorie drinks and liquid food, lost weight may come back.

Roux-en-Y gastric bypass
The surgeon forms a small 50–70 ml pouch at the top of the stomach and joins it straight to the small intestine. This restricts food intake and cuts calorie absorption by shortening the route food takes through the gut.
Effectiveness: viewed as the “gold standard” for BMI over 45–50 plus type 2 diabetes. It removes 75–85% of excess weight.
Specifics: results last better than after other bariatric methods. Related conditions — diabetes, hypertension — often go into remission. The digestive anatomy is changed, so vitamin and mineral supplements are needed throughout life.

Mini gastric bypass (MGB)
This operation is an improvement on the classic bypass. Compared with the standard technique, the surgeon creates a single connection (anastomosis) between the small stomach and the small intestine. Its simplicity makes it easier for the patient, with less recovery time.
Effectiveness: similar to the classic Roux-en-Y bypass; up to 75–80% of excess weight is lost.
Specifics: surgery takes less time and recovery is faster. It can technically be reversed; the single anastomosis, though, poses a risk of bile reflux.

Single anastomosis duodeno-ileal bypass (SADI-S)
SADI-S is a modern combined technique that unites the benefits of sleeve gastrectomy and intestinal bypass. It is done in two stages: first the stomach is turned into a narrow tube, then the small intestine is rerouted so that most of it is excluded from active digestion.
Effectiveness: among the most powerful bariatric operations — excess weight loss reaches 80–90% with a lasting result.
Specifics: appetite drops because the smaller stomach no longer has its ghrelin-producing zone, and bypassing part of the intestine cuts calorie absorption. It fits super obesity (BMI over 50), severe type 2 diabetes, or serves as a second stage following 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
First comes a consultation with the surgeon — your medical history, the method and a recovery plan

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

Diet
Starting 2–4 weeks pre-surgery, drop fast carbs and fats; on the eve, move to light meals.
Lifestyle
From a month before: no smoking, less physical activity, no stress.
The day before
A light meal in the evening is the last; fluids stop 3–4 hours prior.

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

Diet
Starting 2–4 weeks pre-surgery, drop fast carbs and fats; on the eve, move to light meals.
Lifestyle
From a month before: no smoking, less physical activity, no stress.
The day before
A light meal in the evening is the last; fluids stop 3–4 hours prior.
Skilled bariatric surgeons who genuinely care about patient health

Ruslan S. Menzulin
Bariatric surgeon · surgical oncologist
Trained under Vadim Gushchin at Mercy clinic and spoke at the 2025 World Congress of bariatric surgery. Co-author of an international study published in The Lancet.

Andrey G. Ugay
Lead bariatric surgeon · surgeon
Has done more SASJ operations than anyone else in the country. Sits on the expert council of the national Society of Bariatric Surgeons and regularly speaks at national and international congresses.
City Medical Centre sees obesity comprehensively. From the first examination, each patient has a personal diagnostic program (lab and instrumental) built to identify every disorder present in the body.

A method matched to your goal
Our doctors select the surgical method for each patient individually. Before deciding, they assess your health, weight history and related conditions to suggest the most suitable surgical treatment.

Support that stays in touch
City Medical Centre's team remains with you after surgery. Over the first year specialists watch your weight loss, monitor test results and respond to all questions regarding diet and recovery.

Fast recovery
City Medical Centre performs bariatric operations laparoscopically, which shortens recovery considerably. Most patients are on their feet on day one and back to normal life within a week.

Full diagnostics on site
You won't need to visit several clinics. Our centre covers the whole work-up, from our in-house lab to ultrasound and gastroscopy. Quick preparation with no queues, all in one building.
Much of recovery depends on the individual, but minimally invasive laparoscopic techniques keep the rehab stage as short as possible.

Duration
The length of clinic observation is 1 to 5 days, depending on the extent of the operation and related conditions.
Activity
Soon after surgery — within the first hours — you may sit up, stand and take 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
Following the specialists' advice, patients lose 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! Specialists from City Medical Centre supervise recovery and provide psychological and medical support at each weight-loss stage.

Duration
The length of clinic observation is 1 to 5 days, depending on the extent of the operation and related conditions.
Activity
Soon after surgery — within the first hours — you may sit up, stand and take 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
Following the specialists' advice, patients lose 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! Specialists from City Medical Centre supervise recovery and provide psychological and medical support at each weight-loss stage.
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?
It is common to confuse them, but their goals are fundamentally different. Bariatric surgery treats obesity and related diseases medically. By changing how the digestive tract works, it addresses the causes of excess weight and metabolism. Plastic surgery shapes the body's outer contours; it does not treat obesity and has no effect on metabolism.
How soon can I return to work and normal life?
Will there be visible scars?
We use modern laparoscopic technique. The operation is done through 4 small punctures of 5 to 15 mm. Cosmetic sutures are placed, so once healed the marks become almost invisible.
What diet do I need to follow?
Your diet changes step by step: from liquid food to soft and then to solid. The emphasis is on protein and on cutting high-calorie, fatty food.
What types of bariatric surgery are there?
City Medical Centre performs four core types of bariatric surgery: sleeve gastrectomy, Roux-en-Y gastric bypass, mini gastric bypass (MGB) and SADI-S duodeno-ileal bypass. Selection is individual and takes into account 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 — vitamins are required after bariatric surgery. With the digestive anatomy changed, some nutrients are absorbed less well, and regular vitamin and mineral supplements become a permanent part of life.
Can the weight come back?
Weight may return after bariatric surgery, though that is very unlikely when you follow the doctor's advice. Key factors: proper nutrition, avoiding high-calorie drinks and regular follow-up with City Medical Centre specialists.
A free consultation for any service if you apply before the end of the month
Service
Discounted price
Bariatric surgery is a medical treatment for obesity and related diseases. Unlike plastic surgery, it changes how the digestive tract works and addresses the causes of excess weight. For patients from Vienna, four main methods are available: sleeve gastrectomy, Roux-en-Y gastric bypass, mini gastric bypass and SADI-S. Each is chosen individually based on BMI, related conditions and personal goals.
Recovery is short thanks to the minimally invasive technique, and absorbable sutures dissolve on their own. Office work is usually resumed after 2–4 weeks and physical work after about 1.5 months; swimming is allowed after 30 days, with other exercise added gradually. For the first weeks, no sauna or intense training. Vienna residents get the same step-by-step guidance from the team.
Before spending on another diet, get a professional assessment. A short no-cost talk with the surgeon, about a quarter of an hour, shows whether your BMI and related conditions justify surgery. If they do, one package takes you through tests, the operation, care in the ward and follow-up, with the weight loss result set in a contract. Residents of Vienna can apply online.
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Apply before the end of the year and get a consultation at the clinic's expense!