Bariatric Surgery
Laparoscopic procedures that alter stomach volume or the digestive route. The method is chosen together, once eligibility criteria and accompanying conditions have been assessed.
EXPLORE THE DEPARTMENT
MULTIDISCIPLINARY REVIEW
No decision rests on a single measurement
The surgeon, endocrinologist, dietitian and psychologist read the same file together, and the eligibility decision follows from that joint review.
2 OUR PRINCIPLES
A shared decision
Eligibility is decided not by one clinician but by four specialties reviewing the file together
Defined criteria
Body mass index, glucose regulation and accompanying conditions are read against defined ranges
Follow-up continues
First-year reviews are defined; the intervals lengthen afterwards but follow-up does not stop
1 DEPARTMENTS
The three departments at our clinic and the procedures each one covers.
We carry out 13 different procedures at our clinic.
Metabolic Surgery
Procedures aimed at blood glucose, insulin resistance and lipid balance. The decision follows an assessment carried out jointly with endocrinology.
- 01 Type 2 Diabetes Surgery
- 02 Transit Bipartition
- 03 Ileal Interposition
- 04 Metabolic Risk Assessment
Endoscopic Care and Follow-up
Endoscopic procedures that need no incision, together with nutrition, psychology and laboratory follow-up. This work continues for patients for whom surgery is not planned or not yet appropriate.
- 01 Intragastric Balloon
- 02 Endoscopic Sleeve Gastroplasty
- 03 Nutrition and Dietitian Follow-up
- 04 Psychological Assessment
The procedures we carry out
ALL PROCEDURES- 01 Sleeve Gastrectomy Bariatric Surgery
- 02 Gastric Bypass Bariatric Surgery
- 03 Mini Gastric Bypass Bariatric Surgery
- 04 Duodenal Switch Bariatric Surgery
- 05 Revision Surgery Bariatric Surgery
- 06 Type 2 Diabetes Surgery Metabolic Surgery
- 07 Transit Bipartition Metabolic Surgery
- 08 Ileal Interposition Metabolic Surgery
- 09 Metabolic Risk Assessment Metabolic Surgery
- 10 Intragastric Balloon Endoscopic Care and Follow-up
- 11 Endoscopic Sleeve Gastroplasty Endoscopic Care and Follow-up
- 12 Nutrition and Dietitian Follow-up Endoscopic Care and Follow-up
- 13 Psychological Assessment Endoscopic Care and Follow-up
SUMMARY
Eligibility criteria
| BODY MASS INDEX | 40 and above | Considered between 35 and 39.9 where an accompanying condition is present |
|---|---|---|
| AGE RANGE | 18 - 65 | Outside this range the decision is made through a separate board review |
| ACCOMPANYING CONDITION | Type 2 diabetes, sleep apnoea, hypertension, joint load | Its presence strengthens the case but is not sufficient on its own |
| PRECONDITION | Lifestyle change already attempted | Active substance dependence or an untreated eating disorder defers the assessment |
These ranges are a general framework. The final decision follows examination, testing and multidisciplinary review.
THE PROCESS
From the first consultation to the first-year review
In obesity and metabolic surgery the question we hear most is not what a procedure is called but what order things happen in: what comes first, where the decision is made, and how long the follow-up lasts. These six steps run in the same order for every patient; what changes is how long each one takes. The eligibility decision is made at the third step, and where surgery is not found appropriate, a plan still follows.
ABOUT US
- 01
Initial consultation
About 30 minutes · Free of chargeYour history is taken, measurements are made, and the tests you will need are set out in writing.
- 02
Tests and imaging
Within a single dayBlood tests, endoscopy, any necessary imaging and, where sleep apnoea is suspected, a sleep study are arranged.
- 03
Multidisciplinary review
A joint decisionThe surgeon, endocrinologist, dietitian and psychologist review the results together; the eligibility decision is made here.
- 04
Preparation period
2 - 6 weeksThe nutrition plan is followed, breathing exercises begin and, where applicable, the process of stopping smoking is supported.
- 05
Procedure and hospital stay
1 - 5 daysThe chosen procedure, the expected length of stay and the discharge criteria are shared in advance.
- 06
Follow-up
First year and beyondReviews take place at one, three and six months and at one year; laboratory values are measured and the plan adjusted.
The duration and criteria of each step are set out in writing before that step begins.
3 OUR TEAM
One team reading one file
Surgery, endocrinology, nutrition, psychology and anaesthesia meet around a single assessment table.
THE WHOLE TEAM
FREQUENTLY ASKED QUESTIONS
Frequently asked questions
The questions we are asked most often about eligibility, preparation, hospital stay and follow-up
ALL QUESTIONS
At the initial consultation your height, weight and waist circumference are measured and your history taken. Tests are then requested and the results are reviewed together by a team made up of the surgeon, an endocrinologist, a dietitian and a psychologist. The eligibility decision follows from that joint assessment.
No. BMI is the starting point; it is read alongside muscle mass, fat distribution, blood glucose regulation, sleep apnoea and joint load. Two people with the same BMI can reach different decisions.
Usually between two and six weeks. During that time the tests are completed, stopping smoking and breathing exercises begin where relevant, and the nutrition plan is followed. The period can be longer where other conditions are present.
It depends on the procedure: same day or one night for endoscopic work, and between two and five days for surgery. Discharge follows once defined criteria are met.
Reviews take place at defined intervals through the first year; vitamin and mineral levels are measured and the nutrition plan is adjusted. In later years the intervals lengthen, but follow-up does not come to an end.
PATIENT REVIEWS
What patients who have been through consultation, assessment and follow-up have shared with us.
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At the first consultation they told me directly whether I was eligible and gave me the list of required tests in writing. Nothing was rushed.
A. YılmazInitial consultation -
I heard the surgeon, the endocrinologist and the dietitian separately. Knowing the decision did not rest on one person put me at ease.
M. DemirMultidisciplinary assessment -
The length of my hospital stay, the discharge criteria and what I needed to do in the first month were all explained in advance. Nothing differed from what I had been told.
S. AksoySleeve gastrectomy
OUR CLINICS
We work at three separate locations to the same assessment criteria and the same follow-up schedule.
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Kadıköy
Caferağa Mah. Örnek Sok. No: 1, Kadıköy / İstanbul
Weekdays 09.00 - 18.00, Saturday 09.00 - 14.00
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Beşiktaş
Sinanpaşa Mah. Örnek Cad. No: 24, Beşiktaş / İstanbul
Weekdays 09.00 - 18.00, Saturday 10.00 - 14.00
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Ataşehir
Barbaros Mah. Örnek Bulvarı No: 8, Ataşehir / İstanbul
Weekdays 09.00 - 17.30
4 ARTICLES
Articles on eligibility criteria, the preparation period, nutrition and follow-up after surgery.
DECISION 18 August 2026
Who bariatric surgery is assessed for
How body mass index, age range and accompanying conditions bear on an eligibility decision.
READ THE ARTICLE
ASSESSMENT 11 August 2026
How body mass index is calculated, and what it does not show
BMI is not a diagnosis on its own; it is read alongside muscle mass, fat distribution and the metabolic picture.
READ THE ARTICLE
PROCESS 4 August 2026
What the preparation period before surgery involves
The order in which tests, stopping smoking, breathing exercises and dietary changes are worked through.
READ THE ARTICLE
FOLLOW-UP 28 July 2026
The stages of nutrition after surgery
The sequence of liquid, puree and solid stages, the criteria for moving between them and how often dietitian reviews take place.
READ THE ARTICLE
DECISION 21 July 2026
Gastric bypass or sleeve gastrectomy: what the decision rests on
How the two procedures differ in the way they work, and the clinical criteria that shape the choice.
READ THE ARTICLE
METABOLIC 14 July 2026
The role of surgery in type 2 diabetes
The situations in which metabolic surgery comes up, and how joint assessment with endocrinology works.
READ THE ARTICLE
Our clinical newsletter
Once a month we send short notes on eligibility criteria, follow-up and nutrition.
Your subscription has been received.
NEXT STEP
Contact
Get in touch with your questions, and let us assess your eligibility together at an initial consultation.
