guarantee
Gastric Sleeve and Bypass in Nagoya
for good —
14,000 CMC patients already enjoy life in a new body. Your result is written into a formal contract — binding by law, not by words.
patients
experience
from excess weight
rating
Gastric Sleeve and Bypass in Nagoya
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
Hidden fees? None. Surprises? None. One package, full route.
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
It is not only a high BMI that justifies a surgical consult — related diseases do too
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)
Doctors assess obesity chiefly through BMI: take body weight (kg) and divide it by height squared (m²). Surgical treatment is usually justified at a BMI over 40, or over 35 with serious related conditions. Surgery may also be considered at lower values in some cases — where non-surgical approaches have failed.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- Unsuccessful past attempts at weight loss by traditional means
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
- Unsuccessful past attempts at weight loss by traditional means
The role of body mass index (BMI)
Doctors assess obesity chiefly through BMI: take body weight (kg) and divide it by height squared (m²). Surgical treatment is usually justified at a BMI over 40, or over 35 with serious related conditions. Surgery may also be considered at lower values in some cases — where 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
The surgeon removes the larger part of the stomach so it becomes a narrow tube. This strongly reduces how much fits in a portion and lowers ghrelin, the hunger hormone; the patient feels full faster and eats less.
Effectiveness: the method is appropriate for a BMI of 35 to 45. Average loss of excess weight is 60–70%.
Specifics: compared with bypass operations, the result is less stable. When the diet is not followed — notably with high-calorie drinks and liquid food — weight may return.
Roux-en-Y gastric bypass
A small pouch of 50–70 ml is created from the upper stomach and connected directly to the small intestine. Food intake is limited, and fewer calories are absorbed because food travels a shorter path 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: the result endures better than with alternative bariatric methods. Associated diabetes and hypertension frequently go into remission. Lifelong vitamin and mineral supplements are required because the digestive anatomy changes.
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: in line with the classic Roux-en-Y bypass — loss of up to 75–80% of excess weight.
Specifics: a shorter operation and quicker recovery. The procedure can technically be reversed, but the single anastomosis carries a risk of bile reflux.
Single anastomosis duodeno-ileal bypass (SADI-S)
A modern combined approach, SADI-S merges the benefits of sleeve gastrectomy with those of intestinal bypass. It takes two stages — turning the stomach into a narrow tube, then rerouting the small intestine so that the larger part is excluded from active digestion.
Effectiveness: counted among the most powerful bariatric operations — 80–90% excess weight loss with a durable result.
Specifics: appetite falls as the smaller stomach loses the zone that produces ghrelin, while food rerouted around part of the intestine yields fewer absorbed calories. Right for 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
Preparing for bariatric surgery at City Medical Centre
It starts with a surgeon's consultation: medical history, choice of 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
Cardiologist, endocrinologist, psychiatrist, GP and gynecologist (for women).
Diet
For 2–4 weeks before surgery, cut out fast carbs and fats; the day before, eat light meals.
Lifestyle
From a month before: no smoking, less physical activity, no stress.
The day before
Last light meal in the evening; last 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
Cardiologist, endocrinologist, psychiatrist, GP and gynecologist (for women).
Diet
For 2–4 weeks before surgery, cut out fast carbs and fats; the day before, eat light meals.
Lifestyle
From a month before: no smoking, less physical activity, no stress.
The day before
Last light meal in the evening; last fluids 3–4 hours before surgery.
Our specialists
Experienced bariatric surgeons who care about their patients' health
Ruslan S. Menzulin
Bariatric surgeon · surgical oncologist
Trained at Mercy clinic (USA) under Vadim Gushchin, spoke at the World Congress of bariatric surgery in Santiago (2025). Co-author of an international study published in The Lancet.
Andrey G. Ugay
Lead bariatric surgeon · surgeon
Holds the country's record for the number of SASJ operations performed. Member of the expert council of the national Society of Bariatric Surgeons; a regular speaker at national and international congresses.
City Medical Centre bariatric surgery centre
— your path
to confidence and harmony
City Medical Centre takes a full-picture approach to obesity. Once the first examination is done, each patient gets a tailored diagnostic program (lab and instrumental) that reveals every disorder in the body.
A method matched to your goal
Our doctors match the surgical method to each individual patient. They review your health, weight history and accompanying conditions before deciding, to offer you the most appropriate surgical treatment.
Support that stays in touch
The City Medical Centre team is with you after surgery too. For the full first year, specialists track weight loss, keep an eye on your tests and answer every diet and recovery question.
Fast recovery
At City Medical Centre, bariatric operations are laparoscopic, which significantly shortens recovery. Most patients are up and active on day one and return to normal life within a week.
Full diagnostics on site
Running around different clinics is not necessary. Our centre has all you need for your work-up, from our lab to ultrasound and gastroscopy. Preparation is fast and queue-free, in one building.
Recovery after bariatric surgery
Recovery is mostly down to the individual; still, minimally invasive laparoscopic methods keep rehabilitation as short as possible.
Duration
The patient remains under observation at the clinic for 1 to 5 days, depending on the scope of surgery and related conditions.
Activity
In the first hours post-op, sitting up, standing and drinking fluids are fine.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
Back to work in 7–14 days after surgery, depending on how physical your job happens to be.
Restrictions
During the first weeks, stay away from bathhouses, saunas and intense exercise.
Diet
For 1–2 months, a staged diet moves you from liquids to solids to let the stomach adjust.
Pace
Keeping to the specialists' advice, patients lose 10% of their excess weight monthly on average.
Stabilization
Full results are reached in 1.5–2 years. By then, stable eating habits are in place that prevent the weight from coming back.
Important! Your recovery is supervised by City Medical Centre specialists, who give psychological and medical support through each stage of weight loss.
Duration
The patient remains under observation at the clinic for 1 to 5 days, depending on the scope of surgery and related conditions.
Activity
In the first hours post-op, sitting up, standing and drinking fluids are fine.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
Back to work in 7–14 days after surgery, depending on how physical your job happens to be.
Restrictions
During the first weeks, stay away from bathhouses, saunas and intense exercise.
Diet
For 1–2 months, a staged diet moves you from liquids to solids to let the stomach adjust.
Pace
Keeping to the specialists' advice, patients lose 10% of their excess weight monthly on average.
Stabilization
Full results are reached in 1.5–2 years. By then, stable eating habits are in place that prevent the weight from coming back.
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?
Many people confuse them, but the goals are fundamentally different. Bariatric surgery is a medical way to treat obesity and related diseases. It changes how the digestive tract works, getting at the causes of excess weight and metabolism. Plastic surgery only reshapes the body's outer contours; it does not treat obesity or affect metabolism.
How soon can I return to work and normal life?
Will there be visible scars?
Using modern laparoscopic technique, we perform the operation via 4 small punctures of 5 to 15 mm. Cosmetic sutures are placed, leaving marks that are nearly invisible after healing.
What diet do I need to follow?
Diet changes happen in stages, from liquids to soft food and then solids. It centers on protein and limits high-calorie, fatty food.
What types of bariatric surgery are there?
City Medical Centre carries out four main types of bariatric surgery: sleeve gastrectomy, Roux-en-Y gastric bypass, mini gastric bypass (MGB) and SADI-S duodeno-ileal bypass. The choice of method is individual, based on BMI, related conditions and the patient's goals.
Can I plan a pregnancy after surgery?
After bariatric surgery pregnancy is possible, yet doctors recommend at least 12–18 months of waiting. Meanwhile the body stabilizes, weight arrives at target values and nutritional status normalizes.
Do I need to take vitamins after surgery?
Yes, taking vitamins after bariatric surgery is mandatory. Because digestion is anatomically altered, the body absorbs some nutrients poorly, so regular vitamin and mineral supplements stay in the patient's life permanently.
Can the weight come back?
Regaining weight after bariatric surgery is possible, yet very unlikely when you stick to the doctor's advice. The keys are proper nutrition, no high-calorie drinks and regular check-ups with City Medical Centre specialists.
Prices
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Service
Discounted price
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Other services at our clinic
Choosing a bariatric method in Nagoya
SADI-S combines a sleeve with intestinal bypass in two stages and is one of the most powerful bariatric operations, with 80–90% excess weight loss and a long-lasting result. It suits super obesity with a BMI over 50, severe type 2 diabetes, or a second stage after an ineffective sleeve. Anyone in Nagoya in these situations can discuss it at a consultation.
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 Nagoya, regular follow-up with specialists and avoiding high-calorie drinks are the keys to keeping the result for good.
One package covers the full journey, from consultation to final result. There are no separate charges added later: ward, meals, nursing care and coordinator support are included. To find out whether surgery suits you, patients in Nagoya can book a free surgeon consultation; the doctor reviews BMI, health and weight history and recommends a method.
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