SPECIALITY · BARIATRIC SURGERY
Bariatric surgery in Türkiye — sleeve gastrectomy, gastric bypass, revisions.
Surgeon + endocrinologist + dietitian on every case. Structured 12-month follow-up.
What you get
- Team: surgeon + endocrinologist + dietitian + psychologist
- Laparoscopic approach, discharge on day 3–4
- 12-month follow-up and nutrition programme
2 centres · 3 bariatric surgeons · follow-up programme
SECOND OPINION ONLINE
Bariatric consultation — free
Send your weight, height, lab results and current conditions — the bariatric surgeon will respond with a procedure plan and quote.
01
Upload your discharge summary
Discharge summaries, CT/MRI discs (DICOM), histology slides if available. Up to 200 MB.
02
Coordinator reviews
Selects 2–3 professors matched to your diagnosis and stage. Sends them your records.
03
Video consultation
The professor responds online — review of histology, protocol, travel plan if needed.
What to send
- Discharge summaries from inpatient / outpatient care
- CT or MRI — original DICOM discs
- Histology report (if available)
- Slides or blocks for review (optional)
- Current therapy list
Free. Confidential. Anna Moroz reads every request personally.
5 PROCEDURES
Bariatric procedures scope
Sleeve gastrectomy, gastric bypass, revisions — for patients with BMI > 35 or 30+ with comorbidities.
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01Sleeve gastrectomyMETHODLaparoscopic longitudinal resectionTIMELINE5–7 daysLapGISTBougie 36F
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02Gastric bypass (RYGB)METHODRoux-en-Y, laparoscopicTIMELINE7–10 daysRYGBLapBypass
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03Mini-gastric bypassMETHODOne-anastomosis bypassTIMELINE5–7 daysOAGBLap
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04Revision bariatric surgeryMETHODConversion of sleeve to bypassTIMELINE7–10 daysRevisionSADI-S
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05Intragastric balloonMETHODEndoscopic placement for 6 monthsTIMELINE1 dayBIBEndo
TREATMENT METHODS
Methods
Operations are performed laparoscopically; the gastric balloon is placed endoscopically. Bariatric surgeon + endocrinologist + dietitian on one team.
Sleeve gastrectomy
The most popular procedure. Removal of about 75–80% of the stomach along the greater curvature.
2 clinics
Gastric bypass
Gastric bypass with a small gastric pouch (30 ml).
2 clinics
Mini-gastric bypass
Alternative to classic RYGB — technically simpler.
1 clinic
BIB (balloon)
Endoscopic placement of a silicone balloon for 6 months.
1 clinic
Follow-up programme
12-month weight, lab and nutrition monitoring.
2 clinics
BARIATRIC SURGERY · TEAM
Professors you get direct access to
Professors and senior specialists at Memorial, Liv and Akdeniz. Direct contact, no middlemen.
TU
Prof. Dr. Tarık Umutoğlu
Anaesthesiologist, Memorial Bahçelievler Hospital; head of the Department of Anesthesiology and Reanimation, Istanbul Health and Technology University
Memorial Bahçelievler Hospital
Prof. MD. Ümit Koç
Professor of Gastroenterology Surgery · Robotic & Bariatric Surgery
İSÜ Liv Hospital Bahçeşehir
Assoc. Prof. Mehmet Celal Kızılkaya, MD
Associate Professor of General Surgery — Obesity and Metabolic Surgery
Memorial Bahçelievler Hospital — Obesity and Metabolic Surgery Center
Assoc. Prof. Dr. Ersan Eroğlu, MD
Associate Professor of General Surgery
Memorial Bahçelievler Hospital
Prof. Dr. Ediz Altınlı, MD
Professor of General Surgery
Memorial Bahçelievler Hospital
Prof. Dr. Alihan Gürkan, MD
Professor of Surgery, Head of General Surgery Department
Memorial Antalya Hospital
Prof. Dr. Ahmet Cem Dural
Professor of General Surgery (Endocrine Surgery)
Liv Hospital Ulus and Vadistanbul, Istanbul · İstinye University
Prof. Dr. Hakan Teoman Yanar
Professor at the Department of General Surgery
Liv Hospital Ulus, Istanbul
CLINICS
Clinics where treatment takes place
Partner hospitals with specialised departments and end-to-end support.
JCI GOLD SEAL
Liv Hospital Ulus
The flagship hospital of the Liv Hospital group in the upscale Ulus district. JCI accreditation and a da Vinci robotic…
Learn more about the clinic
İSÜ Liv Hospital Bahçeşehir
A multidisciplinary Liv Hospital campus on the European side of Istanbul. Opened in December 2016. 60+ departments: cardiology, neurosurgery, oncology,…
Learn more about the clinic
JCI GOLD SEAL
Memorial Bahçelievler Hospital
The oncology centre of the Memorial network. 320 beds, 15 operating theatres (one hybrid), 49 ICU beds. Full cycle —…
Learn more about the clinic
DIAGNOSTICS
Pre-bariatric work-up
Full work-up with endocrinologist, gastroenterologist and psychologist before surgery.
Gastroscopy (EGD)
Gastric mucosa assessment, exclude erosions and H. pylori.
30 min
Abdominal ultrasound
Exclude gallstones.
30 min
Echo + ECG
Cardiac evaluation before general anaesthesia.
1 hour
Hormonal panel
TSH, insulin and HbA1c; cortisol if Cushing's syndrome is suspected.
3–5 days
Polysomnography
Exclude sleep apnoea.
1 night
Psychological evaluation
Patient readiness for behavioural change.
1 hour
PRICE SNAPSHOT
Bariatric surgery pricing — Türkiye vs EU/USA
Minimum prices, for reference only. The final cost is calculated individually after the doctors review your records.
| Procedure | Türkiye | EU / USA | Savings |
|---|---|---|---|
| Sleeve gastrectomy | from $2 700 | $18 000 – 28 000 | −77% |
| Gastric bypass | from $3 500 | $22 000 – 35 000 | −78% |
| Mini-gastric bypass | from $3 500 | $20 000 – 32 000 | −75% |
| Revision sleeve → bypass | from $8 000 | $30 000 – 50 000 | −75% |
| BIB (balloon) | from $1 950 | $8 000 – 15 000 | −72% |
| Follow-up programme (annual) | included | $3 000 – 6 000 | − |
The information on this page is for reference only and does not constitute a medical opinion.
Request a precise quote for my case
QUESTIONS
Frequently asked about Bariatric Surgery
What BMI is required for bariatric surgery in Turkey?
Current international guidelines (ASMBS/IFSO 2022) recommend surgery for BMI ≥35 regardless of comorbidities, and suggest considering it for BMI 30-34.9 with metabolic disease such as type 2 diabetes; lower cut-offs are used for patients of Asian origin. In Turkey, regulations do not allow bariatric surgery below BMI 30, including for international patients, and patients with BMI 30-40 are first referred to an obesity-centre programme. Memorial and Liv accept patients aged 16-65 after full pre-op workup.
Should I have gastric sleeve or gastric bypass?
Sleeve gastrectomy (LSG) is preferred for BMI 35-50, no severe reflux, and patients who want a simpler one-step operation with no malabsorption — expect 65-70% excess weight loss at 2 years. Gastric bypass (Roux-en-Y) is preferred for BMI >50, severe GERD, or uncontrolled type 2 diabetes — expect 70-80% EWL plus higher diabetes remission. Both are laparoscopic at Memorial and Liv.
How long do I stay in hospital and in Turkey after bariatric surgery?
Hospital stay is 3-4 nights for sleeve and 4-5 nights for bypass. After discharge, you stay an additional 4-6 days at a partner hotel for a follow-up check, leak test (oral methylene blue or contrast study), and dietitian briefing before flying home. Total stay in Turkey is typically 8-11 days.
How much weight will I lose after bariatric surgery?
Average excess weight loss (EWL): sleeve gastrectomy 60-70% at 2 years; gastric bypass 70-80% at 2 years; mini-gastric bypass / OAGB 75-85%. Total body weight loss averages 25-35% depending on starting BMI and adherence. Most rapid loss occurs in months 3-9; weight stabilizes at 18-24 months. Long-term success requires lifelong dietary discipline.
What vitamins and supplements do I need after bariatric surgery?
Lifelong supplementation is mandatory: bariatric multivitamin (2x daily), calcium citrate 1,200-1,500 mg/day, vitamin D3 3,000 IU/day, vitamin B12 (1,000 mcg sublingual daily or IM every 3 months), iron if menstruating or anemic. Annual blood panel (ferritin, B12, vitamin D, PTH, zinc, copper) is mandatory. Memorial provides a written 5-year supplement and follow-up schedule.
What if I regain weight after bariatric surgery?
Significant regain (>15% of nadir weight) affects 20-30% of sleeve patients and 10-20% of bypass patients at 5-10 years. First step is dietitian and behavioral review plus consideration of GLP-1 agonists (semaglutide, tirzepatide). Surgical revision options include sleeve-to-bypass, sleeve-to-SADI-S, or limb-lengthening of an existing bypass. Revision surgery is performed by the bariatric teams at our partner hospitals after an individual assessment.
What is the pre-op liver-shrinking diet?
A 2-week low-calorie liver-reduction diet (about 800-1,000 kcal/day, high protein, low carbohydrate) is mandatory before surgery — it shrinks the left lobe of the liver by ~15-20%, making laparoscopic access safer. Memorial dietitians send a personalized meal plan 4 weeks before surgery and check compliance 1 week before travel. Failure to comply may result in surgery being converted to open or postponed.
REQUEST
Tell me about your case — I’ll read it personally.
Fill in the short form on the consultation page — diagnosis, preferred timing, attached records. We assemble a tumour board for your case and reply within 4 hours.
Open the consultation form- Reply within 4 hours during business hours
- Confidentiality guaranteed
- Coordinator-translator inside the doctor’s office
- Tumour board of 2–3 professors within 72 hours