guarantee
Weight Loss Surgery in Valencia: Sleeve, Bypass, SADI-S
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
Weight Loss Surgery in Valencia: Sleeve, Bypass, SADI-S
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 fees hidden away. No shocks. One package for the whole path.
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
A high BMI is not the only reason to see a surgeon — related conditions count 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 medicines have failed to give a lasting result for 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 medicines have failed to give a lasting result for 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
- No success with earlier tries to slim down by usual means
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.
Key factors
- The patient's body mass index (BMI)
- Overall health and any related chronic conditions
- No success with earlier tries to slim down by usual means
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?
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.
Medical indications
for bariatric surgery
If chronic conditions apply to you, please consult 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
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: recommended for a BMI of 35 to 45. Typically patients shed 60–70% of excess weight.
Specifics: the result is not as long-lasting as with bypass surgery. Breaking the diet, particularly through high-calorie drinks and liquid food, can bring weight back.
Roux-en-Y gastric bypass
The surgeon builds a 50–70 ml pouch in the upper part of the stomach and attaches it directly to the small intestine. This caps food intake and lowers calorie absorption by shortening food's route through the gut.
Effectiveness: the “gold standard” for patients with a BMI over 45–50 and type 2 diabetes. Up to 75–85% of excess weight is lost.
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 is an improved version of the classic bypass. Unlike the standard method, the surgeon creates only one connection (anastomosis) between the small stomach and the small intestine. The simpler technique is easier on the patient and needs less recovery time.
Effectiveness: matches the classic Roux-en-Y bypass — patients' excess weight loss is up to 75–80%.
Specifics: shorter surgery and faster recovery. The procedure is technically reversible, but there is a risk of bile reflux due to the single anastomosis.
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: among the most powerful bariatric operations — excess weight loss reaches 80–90% with a lasting result.
Specifics: a reduced stomach without its ghrelin-producing zone means less appetite, and diverting food past part of the intestine restricts calorie absorption. It is suited to super obesity (BMI over 50), severe type 2 diabetes, or 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
A surgeon's consultation comes first — reviewing medical history, picking a method, planning recovery
Lab tests
CBC and urinalysis, biochemistry, HbA1c and coagulation panel (a 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, endocrinologist, psychiatrist, cardiologist, plus gynecologist (women).
Diet
2–4 weeks before the operation, limit fast carbs and fats; the day prior, eat only light meals.
Lifestyle
Quit smoking one month before, limit physical activity, avoid stress.
The day before
Last light meal in the evening; last fluids 3–4 hours before surgery.
Lab tests
CBC and urinalysis, biochemistry, HbA1c and coagulation panel (a 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, endocrinologist, psychiatrist, cardiologist, plus gynecologist (women).
Diet
2–4 weeks before the operation, limit fast carbs and fats; the day prior, eat only light meals.
Lifestyle
Quit smoking one month before, limit physical activity, avoid 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 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
Performed the highest number of SASJ operations in the country. An expert council member of the national Society of Bariatric Surgeons who often presents at national and international congresses.
City Medical Centre bariatric surgery centre
— your path
to confidence and harmony
The approach to obesity at City Medical Centre is comprehensive. Following an initial examination, a personal diagnostic program — lab and instrumental — is drawn up for each patient to detect every disorder in the body.
A method matched to your goal
Each patient gets an individually chosen surgical method from our doctors. Before a decision, they look at your health, weight history and associated conditions to recommend the most fitting surgical treatment.
Support that stays in touch
The City Medical Centre team remains by your side after surgery. For the whole first year, specialists follow your weight loss, check your tests and answer every question 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
Forget going between clinics. Everything for your work-up is here, including our own lab, ultrasound and gastroscopy. Preparation is quick and queue-free, all in a single building.
Recovery after bariatric surgery
The pace of recovery is largely personal, but minimally invasive laparoscopic techniques shorten rehabilitation as much 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
Already in the first hours post-surgery you are allowed to sit up, stand and drink.
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
In the early weeks, intense exercise, sauna and bathhouse are ruled out.
Diet
For 1–2 months a staged diet is prescribed — liquids first, then solids — to help the stomach adapt.
Pace
Patients sticking to the specialists' advice shed on average 10% of excess weight per month.
Stabilization
In 1.5–2 years the final result is reached, and by then the patient's stable eating habits prevent the weight coming back.
Important! Recovery is overseen by City Medical Centre specialists, with psychological and medical support at every step 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
Already in the first hours post-surgery you are allowed to sit up, stand and drink.
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
In the early weeks, intense exercise, sauna and bathhouse are ruled out.
Diet
For 1–2 months a staged diet is prescribed — liquids first, then solids — to help the stomach adapt.
Pace
Patients sticking to the specialists' advice shed on average 10% of excess weight per month.
Stabilization
In 1.5–2 years the final result is reached, and by then the patient's stable eating habits prevent the weight coming back.
Important! Recovery is overseen by City Medical Centre specialists, with psychological and medical support at every step 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 mix them up, but they pursue fundamentally different goals. Bariatric surgery medically treats obesity and related diseases by changing how the digestive tract functions, addressing the causes of excess weight and metabolism. Plastic surgery reshapes the external contours of the body; it does not treat obesity or influence 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?
Eating changes gradually: liquid food first, then soft, then solid. The focus is protein, with high-calorie, fatty food kept to a minimum.
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 after bariatric surgery is possible, but doctors advise waiting at least 12–18 months. During this time the body stabilizes, weight reaches target values and nutritional status normalizes.
Do I need to take vitamins after surgery?
Yes, vitamins after bariatric surgery are necessary. The body absorbs certain nutrients less well due to the changed digestive anatomy, so regular vitamin and mineral supplements become a permanent part of the patient's life.
Can the weight come back?
Weight regain is possible after bariatric surgery but very unlikely provided you follow the doctor's advice. Eat properly, avoid high-calorie drinks and keep up regular follow-up with City Medical Centre specialists.
Prices
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How obesity surgery works for Valencia residents
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 Valencia should know that it requires lifelong vitamin and mineral supplements.
Eating changes in stages. A staged diet lasts 1–2 months, moving from liquid to soft to solid food so the stomach can adapt, with the focus on protein and limited high-calorie, fatty dishes. Following specialist advice, patients lose on average 10% of excess weight per month. Those from Valencia build stable eating habits that keep the weight from returning.
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. Valencia 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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