Mini Gastric Bypass — Antalya
Mini gastric bypass (one anastomosis gastric bypass — OAGB) is a bariatric procedure in which the stomach is reshaped into a long tube and connected to the small bowel with a single anastomosis. In Antalya, Op.Dr.Gökhan ATEŞ evaluates suitable candidates on an individual basis.
What is mini gastric bypass?
In mini gastric bypass the stomach is reduced to a long, narrow tube and joined to the small intestine with a single anastomosis approximately 150–200 cm distal from the duodenojejunal junction. Unlike Roux-en-Y gastric bypass, there is no second intestinal anastomosis.
Because of this configuration it can be technically shorter and has both restrictive and malabsorptive effects. In suitable patients it is considered for sustained weight loss and metabolic improvement.
Who may be a candidate?
Candidacy is decided based on body mass index, co-morbidities and any previous bariatric history.
- Adults with BMI ≥ 40
- Adults with BMI 35–40 and obesity-related conditions such as type 2 diabetes
- Selected patients with insufficient response after sleeve gastrectomy (as a revisional option)
How it differs from Roux-en-Y bypass
Roux-en-Y gastric bypass uses two intestinal anastomoses, whereas mini bypass uses only one. This can shorten operating time but requires careful patient selection regarding reflux risk and long-term follow-up.
The choice between techniques depends on BMI, metabolic disease, reflux history and any prior surgery.
How is the operation performed?
Mini gastric bypass is performed laparoscopically through small abdominal incisions. The stomach is reshaped into a tube and connected to the small bowel with one anastomosis.
Recovery
A hospital stay of 2–3 days is usually advised. Nutrition progresses from liquid to puree to solid foods under dietitian supervision. Vitamin/mineral supplementation and regular follow-up are essential.
Risks and considerations
As with any surgery there are potential risks including bleeding, infection, anastomotic leak, bile reflux and long-term vitamin/mineral deficiencies. Regular follow-up is recommended.
Evaluation in Antalya
Initial consultation for domestic and international patients can be arranged via WhatsApp. For deeper bariatric content, our dedicated site obeziteantalya.com.tr serves as the long-form reference.
Frequently Asked Questions
Who is a candidate for mini gastric bypass?+
Adults who meet the clinical criteria for BMI and co-morbidities may be considered. The decision follows clinical examination and necessary tests.
Why might it be chosen over sleeve or Roux-en-Y bypass?+
Reflux history, BMI and metabolic disease all influence the choice. Mini bypass can shorten operating time as it uses a single anastomosis, but there is no single best procedure — the decision is individualised.
What is the reflux risk?+
Some patients may develop bile reflux. Patients with significant pre-existing reflux are re-evaluated for the most appropriate technique.
How long is the hospital stay?+
Typically 2–3 days, depending on individual recovery.
This content is for general information only; diagnosis and treatment require an individual medical evaluation.