guarantee
Laparoscopic Bariatric Surgery in Duisburg
for good —
14,000 CMC patients already live in a new body. The result is fixed in an official contract, legally and not only verbally.
patients
experience
from excess weight
rating
Laparoscopic Bariatric Surgery in Duisburg
for good —
Everything for the result — included
Bariatric surgery —
is it right for me?
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
Everything needed for the result —
already included
Nothing hidden, nothing unexpected. One package for every step.
Bariatric surgery —
is it right for me?
Tick the situations that sound familiar.
From 2 matches — a reason to talk to a surgeon.
Reasons to see a surgeon
Grounds for a surgeon's consultation include related conditions as well as a high BMI
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.
When is bariatric surgery justified?
Surgery is prescribed only when clear criteria are met
The role of body mass index (BMI)
The degree of obesity is mainly assessed with BMI: body weight (kg) divided by height squared (m²). As a rule, surgery is justified when BMI exceeds 40, or exceeds 35 alongside serious related conditions. In some cases lower values may also qualify for surgery if non-surgical approaches have failed.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- Weight-loss attempts using conventional methods have not succeeded
Why don't diets and exercise work for everyone?
Many try all kinds of diets and exercise for years, yet the body defends itself — metabolism drops, hunger grows and lost weight returns. Once it is obvious that medication and a changed diet alone cannot fundamentally fix the situation, bariatric surgery becomes the only effective path.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- Weight-loss attempts using conventional methods have not succeeded
The role of body mass index (BMI)
The degree of obesity is mainly assessed with BMI: body weight (kg) divided by height squared (m²). As a rule, surgery is justified when BMI exceeds 40, or exceeds 35 alongside serious related conditions. In some cases lower values may also qualify for surgery if non-surgical approaches have failed.
Why don't diets and exercise work for everyone?
Many try all kinds of diets and exercise for years, yet the body defends itself — metabolism drops, hunger grows and lost weight returns. Once it is obvious that medication and a changed diet alone cannot fundamentally fix the situation, bariatric surgery becomes the only effective path.
Medical indications
for bariatric surgery
Chronic illness? Please talk to a doctor at the clinic first!
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
Bariatric surgery methods at City Medical Centre
Sleeve gastrectomy
In surgery, most of the stomach is taken out and the rest is formed into a narrow tube. Portions become far smaller and ghrelin, the hormone behind hunger, drops, so the patient feels full quicker and eats less.
Effectiveness: the method suits a BMI of 35 to 45. On average patients lose 60–70% of their excess weight.
Specifics: bypass operations give a more durable result. Should the diet be ignored, especially with high-calorie drinks and liquid food, weight can return.
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: regarded as the “gold standard” for a BMI over 45–50 with type 2 diabetes. Loss of excess weight reaches 75–85%.
Specifics: outcomes are more durable than with other bariatric procedures. Diabetes, hypertension and other related conditions often go into remission. With the digestive anatomy changed, lifelong vitamin and mineral supplements are a must.
Mini gastric bypass (MGB)
The classic bypass, improved. Unlike the standard method, the surgeon forms just one connection (anastomosis) between the small stomach and the small intestine. A simpler technique puts less strain on the patient and cuts the time needed to recover.
Effectiveness: like the classic Roux-en-Y bypass, it helps patients lose up to 75–80% of excess weight.
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 contemporary combined technique uniting what is best in sleeve gastrectomy and intestinal bypass. Two stages are involved: first a narrow tube is formed from the stomach, then the small intestine is rerouted, leaving most of it outside active digestion.
Effectiveness: one of the most effective bariatric operations — 80–90% of excess weight is lost, and the result lasts long.
Specifics: removal of the ghrelin-producing zone shrinks the stomach and appetite, and routing food past part of the intestine curbs calorie absorption. Appropriate for super obesity (BMI over 50), severe type 2 diabetes, or as a second stage after a sleeve that failed.
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
Preparing for bariatric surgery at City Medical Centre
It all opens with a surgeon's consultation — medical history, selecting a method, a recovery plan
Lab tests
Complete blood count and urinalysis, biochemistry, HbA1c, coagulation panel (clotting test).
Instrumental diagnostics
Leg vein Doppler, chest X-ray, ECG, and abdominal and kidney ultrasound.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
A GP, endocrinologist, psychiatrist and cardiologist, plus gynecologist (women).
Diet
Cut back on fast carbs and fats 2–4 weeks before surgery, and eat light the day before.
Lifestyle
A month before, quit smoking, lower physical activity and shun stress.
The day before
Last light meal the evening before; stop fluids 3–4 hours before surgery.
Lab tests
Complete blood count and urinalysis, biochemistry, HbA1c, coagulation panel (clotting test).
Instrumental diagnostics
Leg vein Doppler, chest X-ray, ECG, and abdominal and kidney ultrasound.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
A GP, endocrinologist, psychiatrist and cardiologist, plus gynecologist (women).
Diet
Cut back on fast carbs and fats 2–4 weeks before surgery, and eat light the day before.
Lifestyle
A month before, quit smoking, lower physical activity and shun stress.
The day before
Last light meal the evening before; stop fluids 3–4 hours before surgery.
Our specialists
Bariatric surgeons with deep experience and real care for patients' health
Ruslan S. Menzulin
Bariatric surgeon · surgical oncologist
Trained with Vadim Gushchin at Mercy clinic, and presented at the 2025 World Congress of bariatric surgery. Co-author of an international paper published in The Lancet.
Andrey G. Ugay
Lead bariatric surgeon · surgeon
Has performed more SASJ operations than any other surgeon in the country. Part of the expert council of the national Society of Bariatric Surgeons; regularly presents at national and international congresses.
City Medical Centre bariatric surgery centre
— your path
to confidence and harmony
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
Choosing the surgical method is individual for each patient at our clinic. Doctors first review your health, history of weight and related conditions and then propose the most suitable surgical option.
Support that stays in touch
The City Medical Centre team stays with you after surgery. Throughout the first year, specialists track your weight loss, monitor your tests and answer all questions about 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 after bariatric surgery
Recovery largely depends on the individual, but minimally invasive laparoscopic techniques keep rehabilitation as short as possible.
Duration
Depending on the extent of surgery and related conditions, the patient is observed at the clinic for 1 to 5 days.
Activity
In the first hours after the operation you can sit up, stand and drink fluids.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
Work can be resumed 7–14 days after surgery, depending on how physically demanding it is.
Restrictions
No sauna, no bathhouse and no intense physical exercise for the first weeks.
Diet
The stomach adapts through a staged diet over 1–2 months, progressing from liquids to solids.
Pace
On average, patients who follow the specialists' advice lose 10% of excess weight a 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! Your recovery is supervised by City Medical Centre specialists, who give psychological and medical support through each stage of weight loss.
Duration
Depending on the extent of surgery and related conditions, the patient is observed at the clinic for 1 to 5 days.
Activity
In the first hours after the operation you can sit up, stand and drink fluids.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
Work can be resumed 7–14 days after surgery, depending on how physically demanding it is.
Restrictions
No sauna, no bathhouse and no intense physical exercise for the first weeks.
Diet
The stomach adapts through a staged diet over 1–2 months, progressing from liquids to solids.
Pace
On average, patients who follow the specialists' advice lose 10% of excess weight a 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! Your recovery is supervised by City Medical Centre specialists, who give psychological and medical support through each 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
Frequently asked questions
about bariatric surgery at CMC
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?
Our surgeons use modern laparoscopic technique: the operation goes through 4 small 5 to 15 mm punctures. With cosmetic sutures, the marks become almost invisible once healed.
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?
The four main types of bariatric surgery at City Medical Centre are sleeve gastrectomy, Roux-en-Y gastric bypass, mini gastric bypass (MGB) and SADI-S duodeno-ileal bypass. Each method is matched individually to BMI, related conditions and the patient's goals.
Can I plan a pregnancy after surgery?
Getting pregnant after bariatric surgery is possible, but doctors advise waiting at least 12–18 months, so the body can stabilize, weight can reach target values and nutritional status can normalize.
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?
After bariatric surgery weight regain can happen, but it is very unlikely if the doctor's advice is followed. What matters is proper nutrition, avoiding high-calorie drinks and regular follow-up with City Medical Centre specialists.
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Choosing a bariatric method in Duisburg
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 Duisburg should know that it requires lifelong vitamin and mineral supplements.
It begins with a surgeon's consultation: medical history, choice of method and a recovery plan. Patients from Duisburg then complete a work-up — blood and urine tests, biochemistry, HbA1c, coagulation, chest X-ray, ECG, abdominal and kidney ultrasound, leg vein Doppler and a required gastroscopy — plus consultations with a GP, endocrinologist, psychiatrist, cardiologist and, for women, a gynecologist.
What sets this programme apart is a result guarantee written into an official contract: weight loss is fixed legally, not just in words. Surgeons have 9–11 years in the field and work as a permanent team. Duisburg residents can tick the situations that sound familiar on the page and then check their case for free with a surgeon.
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