A single-join bypass that reduces stomach volume and reroutes food — not a gentler sleeve, and never chosen from a weight target alone.
A mini gastric bypass, also called one-anastomosis gastric bypass (OAGB), creates a long, narrow stomach pouch that is joined to a loop of small intestine further down. Unlike a Roux-en-Y bypass, there is a single join, which can make the operation shorter.
Despite the name, it is not a minor or gentler operation. Because it bypasses a long section of intestine, it affects nutrient absorption and carries a risk of bile reflux into the stomach pouch and oesophagus. The choice between a sleeve, a standard bypass and a mini bypass depends on your health, reflux and the surgeon’s assessment.
These are general points only. Whether a procedure is suitable for you is decided by the treating surgeon and team after reviewing your medical history, tests and an in-person assessment, not from weight or BMI alone.
You share your height, weight, medical conditions, medication, previous operations and recent blood tests. The team decides whether an assessment is appropriate and what else is needed before you travel.
You meet the surgeon and anaesthetist and have blood tests and other checks, often including an ultrasound or endoscopy. A dietitian explains the eating plan, and the procedure is confirmed only if it is still appropriate.
Under general anaesthesia, by keyhole surgery, the stomach pouch is created and joined to a loop of small intestine.
You leave with written diet and medication instructions. Follow-up with the clinic’s dietitian and regular blood tests continue remotely and with your own doctor at home.
You stay in hospital, usually for two to four nights. You walk early to lower the risk of clots, start with small sips of clear fluids and receive pain relief and blood-thinning injections.
You follow a liquid diet in small, frequent amounts. Most people return to desk work after about two weeks, avoiding heavy lifting.
You move gradually to puréed and then soft foods, eating slowly and stopping as soon as you feel full. Daily vitamin and mineral supplements begin.
Most weight loss happens in the first year to eighteen months. Regular follow-up and blood tests help catch deficiencies early.
Timelines vary between people. Always follow the aftercare instructions from your treating clinic.
No. It is a full bypass procedure that changes how food is absorbed. “Mini” refers to the single join, not to a lower level of risk.
Reflux, previous surgery, other health conditions and your nutritional needs all affect which operation is safest. The surgeon explains the reasons for the recommendation.
Usually, yes. After bariatric surgery, most people need daily supplements and regular blood tests for life to prevent deficiencies, such as of iron, vitamin B12, calcium and vitamin D.
For bariatric surgery, most people stay around seven to ten nights: assessment, the operation, several nights in hospital and a check before flying. Your surgeon confirms when it is safe to travel, as flying soon after surgery raises the risk of blood clots.
It depends on the procedure recommended after your assessment, the hospital stay and any additional tests. You receive a written, itemised quote before anything is booked, with no obligation to proceed.
Share your details and a coordinator will reply with clear next steps. There is no obligation to proceed.
This page is general information, not medical advice; a treating clinician confirms your plan after assessment. ELAVIA Global coordinates care; clinical evaluation and treatment are delivered by independent, licensed partner facilities and their specialists.