Mini Gastric Bypass

What a mini gastric bypass involves

The mini gastric bypass — one-anastomosis gastric bypass, OAGB — creates a long, narrow stomach pouch and joins it directly to a loop of small intestine 150–200 cm down, bypassing the rest. There is one join instead of the two of a Roux-en-Y bypass, so the operation is shorter (about an hour), has fewer leak points and a lower rate of internal hernia, with weight loss and diabetes remission that are at least equivalent. It is now one of the most commonly performed bariatric operations in Europe and endorsed by IFSO.

The trade-off is a slightly higher risk of bile reflux and of nutritional deficiency than a sleeve, which is why lifelong vitamin supplementation and annual blood tests are part of the plan, not an option.

Who is eligible

BMI 35 and above, or 30 and above with type 2 diabetes or another obesity-related condition; age 18–65; previous serious attempts at weight loss. Patients with severe pre-existing reflux are usually steered toward a Roux-en-Y bypass instead. Pre-operative blood tests, ultrasound and an anaesthesia review are done on arrival.

Why Istanbul, and why through us

Our partner bariatric surgeons perform sleeve, bypass and mini bypass every week in a JCI-accredited hospital with a dedicated bariatric unit and intensive care. Private mini bypass costs £9,000–12,000 in the UK and €10,000–14,000 in Germany; here the full package with hotel and dietitian follow-up is a third of that, with a date within weeks.

You deal with one coordinator, one hospital and one medical team from the first message to the last follow-up. Every price is itemised in writing before you pay a deposit, and the written quote does not change unless you change the plan. Flights are never included.

Recovery and follow-up

Two to three nights in hospital with a leak test before discharge, then the recovery hotel; fly home day six or seven. Liquids for two weeks, puree for two, then soft food. Desk work at two weeks, sport at six. The dietitian follows you remotely at one, three, six and twelve months; you take a daily multivitamin, B12, iron and calcium for life.

Cost of a mini gastric bypass in Turkey

The published price includes surgery, all pre-operative tests, hospital nights, recovery hotel, transfers, and twelve months of remote dietitian follow-up. Flights are never included.

Clarify what “mini” means in your treatment plan

Ask the surgeon to write the full name of the proposed operation and explain its anatomical changes. “Mini” should not be interpreted as a promise of a minor intervention, shorter recovery or lower risk.

Request a comparison with the other procedures being considered for you. Ask why this recommendation fits your history and what alternatives remain reasonable. A marketing name is not enough to distinguish the clinical options.

Discuss the reason for this specific recommendation

Explain previous weight-management treatment, any earlier abdominal surgery, reflux symptoms and medicines you use. Ask what further assessment the clinician requires before confirming suitability.

You should understand both the intended benefits and material risks before choosing. If the explanation relies mainly on a shorter operating time or a lower headline price, ask how the long-term trade-offs have been considered. No universal ranking between bypass operations is implied here.

Treat the online price as provisional

The pricing catalogue currently marks this procedure's figure as a market benchmark rather than a verified partner quote. Request an individual written quote for the named operation; do not treat the benchmark as a guaranteed offer.

Ask separately about hospital nights, hotel nights, tests, clinical fees and support after discharge. Flights are excluded. A single number should not conceal uncertainty about which parts of the journey are actually booked.

Agree follow-up that can continue at home

Ask the bariatric team to identify the monitoring, nutritional support and clinical reviews recommended for your plan. Find out which are supplied through the partner facility and which need to be arranged locally.

Request records that identify the operation performed. If you later seek medical care elsewhere, the clinician should not have to infer your anatomy from a generic surgery package name.

Is “mini” a reason to expect an easier recovery?

Ask the surgeon about the actual operation and your individual recovery plan. The name does not establish the timetable.

Can I book at the published benchmark figure?

Request a confirmed partner quote first. Do not treat a benchmark as an agreed price.

Who reviews this content medically?

Ask for the name and specialty of the clinician assessing your case and providing your treatment plan.

Discuss reflux and nutritional care before the operation choice

Discuss Chelsea and Westminster Hospital's OAGB information with the specialist. Ask about bile reflux, nutritional concerns and how existing symptoms, previous operations and your medical history affect the recommendation. UK patient information does not establish a Turkish partner protocol or a preferred operation for you.

Ask how Roux-en-Y gastric bypass, sleeve gastrectomy and continued medical weight management compare for your goals. The number of joins is one feature of an operation, not a complete risk assessment. Do not choose from a claim of shorter operating time or equivalent results without an explanation of the evidence and its limits.

Make lifelong monitoring practical before travelling

Ask who prescribes and reviews supplements, which blood tests are recommended and who follows up abnormal results after you return home. Bring current prescriptions and recent results if available. Request an individual supplement and medication plan.

If regular local follow-up will be needed, confirm access before booking. Ask for the operation summary and the details another clinician needs to understand your changed anatomy. A remote dietitian appointment and urgent surgical assessment are different services; clarify who handles each and how to reach them.

Separate discharge, travel and return to ordinary life

Request written instructions for eating and drinking, medicines, activity and the symptoms that require urgent assessment. Ask what the team checks before discharge and before recommending a flight. Hospital discharge is not automatically permission for a long journey, lifting luggage or returning to physically demanding work.

As of October 2026, the €3,990 catalogue entry is an OAGB market benchmark with a three-night hospital notation. It does not verify a hotel allowance or an agreed sellable package. Ask for a partner quote separating operation, investigations, hospital care, hotel nights, transfers and follow-up. Flights are excluded; clarify extension costs if recovery changes the itinerary.

What if reflux or difficulty eating develops after I return?

Ask how those symptoms are assessed, which clinician is responsible and when in-person care is required. Do not diagnose bile reflux from a symptom description or wait for a routine appointment if urgent assessment is advised.