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Bariatric Surgery in Osaka: Methods and Results
for good —
14,000 CMC patients already live in a different body. The result is stated in an official contract — in law, not just in talk.
patients
experience
from excess weight
rating
Bariatric Surgery in Osaka: Methods and Results
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
No hidden extras. Nothing unexpected. One package, start to end.
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
Both a high BMI and associated conditions can make a surgical consultation worthwhile
Medical history
Excess weight since childhood or a genetic predisposition
Metabolic disorders
Type 2 diabetes and hypertension associated with obesity
Resistance to conservative treatment
No lasting outcome from diets and medication across 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
No lasting outcome from diets and medication across several years.
When is bariatric surgery justified?
Surgery is prescribed only when clear criteria are met
The role of body mass index (BMI)
BMI is the main tool for assessing the degree of obesity. It is calculated by dividing body weight (kg) by height squared (m²). Surgery is usually justified with a BMI above 40, or above 35 with serious related conditions. In some cases surgery is considered at lower values too — if non-surgical approaches have failed.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- Conventional weight-loss methods have failed in past attempts
Why don't diets and exercise work for everyone?
Plenty of people diet and exercise for years, only for the body to resist: a slower metabolism, a bigger appetite and the weight coming back. When diet changes and medication clearly cannot fundamentally improve matters on their own, the only effective option left is bariatric surgery.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- Conventional weight-loss methods have failed in past attempts
The role of body mass index (BMI)
BMI is the main tool for assessing the degree of obesity. It is calculated by dividing body weight (kg) by height squared (m²). Surgery is usually justified with a BMI above 40, or above 35 with serious related conditions. In some cases surgery is considered at lower values too — if non-surgical approaches have failed.
Why don't diets and exercise work for everyone?
Plenty of people diet and exercise for years, only for the body to resist: a slower metabolism, a bigger appetite and the weight coming back. When diet changes and medication clearly cannot fundamentally improve matters on their own, the only effective option left is bariatric surgery.
Medical indications
for bariatric surgery
If you have chronic conditions, please see a clinic doctor 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
Here the surgeon removes most of the stomach, reshaping it into a narrow tube. That greatly limits portion size and lowers ghrelin, the hunger hormone — the patient feels full much more quickly and eats less.
Effectiveness: the method is appropriate for a BMI of 35 to 45. Average loss of excess weight is 60–70%.
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: the operation is considered the “gold standard” for a BMI over 45–50 with type 2 diabetes. Excess weight loss reaches 75–85%.
Specifics: the result lasts better than with other bariatric methods. Related conditions such as diabetes and hypertension often go into remission. Because the digestive anatomy changes, lifelong vitamin and mineral supplements are needed.
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: matches the classic Roux-en-Y bypass — patients' excess weight loss is up to 75–80%.
Specifics: a faster operation and shorter recovery. The procedure can be undone technically, but there is a bile reflux risk from the single anastomosis.
Single anastomosis duodeno-ileal bypass (SADI-S)
As a modern combined technique, SADI-S brings together the benefits of sleeve gastrectomy and intestinal bypass. Its two stages: making the stomach into a narrow tube, then rerouting the small intestine so the majority of it is excluded from active digestion.
Effectiveness: one of the most effective bariatric operations — 80–90% of excess weight is lost, and the result lasts long.
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
The first step is a surgeon's consultation covering medical history, method selection and recovery plan
Lab tests
Biochemistry, HbA1c, complete blood count, urinalysis and a coagulation panel (clotting test).
Instrumental diagnostics
ECG, chest X-ray, ultrasound of abdomen and kidneys, Doppler of leg veins.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
GP, psychiatrist, endocrinologist, cardiologist; gynecologist for female patients.
Diet
Avoid fast carbs and fats during the 2–4 weeks before surgery; eat lightly the day before.
Lifestyle
A month before, quit smoking, lower physical activity and shun stress.
The day before
Last light meal in the evening; last fluids 3–4 hours before surgery.
Lab tests
Biochemistry, HbA1c, complete blood count, urinalysis and a coagulation panel (clotting test).
Instrumental diagnostics
ECG, chest X-ray, ultrasound of abdomen and kidneys, Doppler of leg veins.
Endoscopy
Gastroscopy (required) and colonoscopy (if indicated).
Specialists
GP, psychiatrist, endocrinologist, cardiologist; gynecologist for female patients.
Diet
Avoid fast carbs and fats during the 2–4 weeks before surgery; eat lightly the day before.
Lifestyle
A month before, quit smoking, lower physical activity and shun stress.
The day before
Last light meal in the evening; last fluids 3–4 hours before surgery.
Our specialists
Our experienced bariatric surgeons care about every patient's 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
No one in the country has performed more SASJ operations. On the expert council of the national Society of Bariatric Surgeons; gives regular talks at national and international congresses.
City Medical Centre bariatric surgery centre
— your path
to confidence and harmony
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
The City Medical Centre team keeps supporting you after the operation. All through the first year, specialists track how your weight drops, check your tests and handle every question on 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 don't have to go clinic to clinic. Our centre has everything needed for your work-up — own lab, ultrasound, gastroscopy. Fast preparation, no queues, one building.
Recovery after bariatric surgery
Recovery largely depends on the individual, but minimally invasive laparoscopic techniques keep rehabilitation as short as possible.
Duration
The patient is kept under clinic observation for 1 to 5 days, depending on the scale of surgery and related conditions.
Activity
Sitting up, standing and drinking are allowed in the first hours after surgery.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
You can go back to work 7–14 days after surgery, depending on how physical the job is.
Restrictions
In the early weeks, intense exercise, sauna and bathhouse are ruled out.
Diet
You follow a staged diet for 1–2 months, going from liquid to solid food as the stomach adapts.
Pace
By following the specialists' advice, patients lose 10% of excess weight per month 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! Specialists from City Medical Centre supervise recovery and provide psychological and medical support at each weight-loss stage.
Duration
The patient is kept under clinic observation for 1 to 5 days, depending on the scale of surgery and related conditions.
Activity
Sitting up, standing and drinking are allowed in the first hours after surgery.
Wound care
Absorbable sutures are used; they dissolve on their own.
Work
You can go back to work 7–14 days after surgery, depending on how physical the job is.
Restrictions
In the early weeks, intense exercise, sauna and bathhouse are ruled out.
Diet
You follow a staged diet for 1–2 months, going from liquid to solid food as the stomach adapts.
Pace
By following the specialists' advice, patients lose 10% of excess weight per month 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! 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
Frequently asked questions
about bariatric surgery at CMC
Bariatric vs plastic surgery: what's the difference?
Though often confused, the two have fundamentally different goals. Bariatric surgery is a medical treatment of obesity and related illnesses; it changes the functioning of the digestive tract to address the causes of excess weight and metabolism. Plastic surgery reshapes the outer contours of the body and neither treats obesity nor affects metabolism.
How soon can I return to work and normal life?
Will there be visible scars?
Our approach is modern laparoscopic technique: 4 small punctures of 5 to 15 mm. We use cosmetic sutures, so the marks turn almost 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?
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?
Bariatric surgery does not rule out pregnancy, but doctors suggest waiting 12–18 months or more. During that time the body settles, weight reaches target values and nutrition status normalizes.
Do I need to take vitamins after surgery?
Yes, vitamins are essential after bariatric surgery. As digestive anatomy changes, the body absorbs certain nutrients less well, so regular vitamin and mineral supplements become a lasting part 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.
Prices
A free consultation for any service if you apply before the end of the month
Service
Discounted price
City Medical Centre licences
Other services at our clinic
When bariatric surgery in Osaka makes sense
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 Osaka in these situations can discuss it at a consultation.
A personal coordinator is assigned from day one, so no one goes through the process alone. After the first examination, each patient gets an individual diagnostic programme to identify every disorder in the body. Then the surgeon selects the method and performs the laparoscopic operation, and a doctor stays nearby 24/7. That is the sequence for everyone from Osaka.
There are no hidden fees: one package covers everything required for the result. It brings together experienced surgeons, round-the-clock care, meals, nursing, a coordinator and a legal result guarantee. Tick the situations that apply to you and request a free check of your case; a coordinator will contact patients from Osaka to arrange the next steps.
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