Starting from $1800

Book a Consultation

Laparoscopic Single Anastomosis Gastric Bypass

About the Procedure

Single-Anastomosis Gastric Bypass (OAGB / Mini Gastric Bypass)

Procedure length: 60–150 minutes • Hospital stay: 1–2 nights • Recovery: light activity 2–4 weeks

What is OAGB (Mini Gastric Bypass)?

OAGB (One-Anastomosis Gastric Bypass), also called mini gastric bypass, is a bariatric/metabolic operation that creates a small gastric pouch and connects it to the small intestine with a single gastrojejunostomy. It combines restriction and a degree of malabsorption to produce weight loss and metabolic benefits.

Patient criteria — Who needs it?

Adults with obesity (BMI criteria similar to other bariatric surgeries) who need stronger metabolic control than sleeve gastrectomy may provide.
Suitable for patients prioritising maximum weight and diabetes improvement and accepting requirement for lifelong supplementation.
Requires informed consent about possible bile reflux and monitoring for nutritional deficiencies.

When to choose OAGB?

Consider OAGB when patients need greater diabetes remission, have higher BMI, or when conversion from sleeve to a bypass is planned. OAGB may be chosen for its technical simplicity in experienced hands and strong metabolic outcomes.

Comparison with other bariatric procedures

Vs Sleeve Gastrectomy: OAGB offers stronger metabolic effects and weight loss but has higher risk of malabsorption and requires stricter lifelong supplements.
Vs Roux-en-Y gastric bypass (RYGB): OAGB has one anastomosis (technically simpler), but RYGB remains the gold-standard for bile reflux management; surgeon experience is a key factor.

Pre-surgery preparation & examinations

Full multidisciplinary assessment (surgeon, endocrinologist, dietitian, psychologist).
Blood tests (CBC, renal, liver, vitamin levels), ECG, imaging as required, upper endoscopy to assess reflux or gastritis.
Pre-op diet and smoking cessation; medication review and DVT risk assessment.

Surgery day & what to expect

Performed under general anaesthesia via laparoscopic ports. The surgeon creates a long narrow pouch and performs a single gastro-jejunal anastomosis. Operation time varies with complexity; patients observed post-op and usually start liquids within 24 hours if stable.

How is the surgery done

Laparoscopic creation of a small gastric pouch → identification of a jejunal loop → single anastomosis (gastrojejunostomy) to bypass a portion of small bowel, reducing calorie absorption and altering gut hormones.

Benefits of OAGB

Robust weight loss and high rates of metabolic improvement for type 2 diabetes.
Often shorter operative time compared with RYGB in experienced teams.
Option for conversion or revision if needed in selected cases.

Expected results & timeline

Early reduced intake and rapid weight loss within first 3–6 months.
Significant metabolic improvements often seen early (glucose control).
Maximum weight loss typically 12–24 months; lifelong follow-up for nutrition.

Post-surgery instructions

Lifelong vitamin/mineral supplementation (iron, B12, calcium, vitamin D, others) and regular lab monitoring.
Diet progression under dietitian guidance; avoid alcohol and high-sugar foods early on.
Report any persistent reflux, vomiting, or signs of malnutrition promptly.

Tourmedx support & packages

We provide hospital selection, accredited surgeons, pre-op testing coordination, recovery accommodation, private transfers, translator services and structured follow-up (virtual and in-person). Packages are customised according to clinical needs and stay length.

FAQs

Is OAGB reversible?

Technically reversible in some cases, but reversals are complex; discuss options with your surgeon.

Will I need blood tests after OAGB?

Yes — periodic monitoring for nutrient deficiencies (eg. iron, B12, vitamin D) is essential.

Start your evaluation

Contact Tourmedx to compare sleeve vs OAGB and receive a tailored surgical package and quote.

Related Packages

Basic Healing Journey

$800

This package includes::

Airport pickup & drop-off
3-star hotel accommodation (5 nights)
General medical checkup at a certified hospital
One-day guided Cairo city tour
24/7 local assistance
Translator support during medical visits

View Details

Therapeutic Wellness Plan

$1,500