BARIATRIC SURGERY

Omega-Loop Bypass

One Anastomosis Gastric Bypass (OAGB)

30-45 min
Duration
1-2 Days
Hospital Stay
2 Wks
Recovery
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The omega-loop bypass combines the benefits of the classic gastric bypass with a simplified technique.

Only one connection point instead of two - this means a shorter operation and a lower risk of complications with comparable results.

The Procedure

One Anastomosis Gastric Bypass (OAGB)

The one anastomosis gastric bypass (OAGB) is a simplified variant of the classic Roux-en-Y bypass. In this procedure, only one anastomosis is created instead of two, which shortens the procedure time and reduces the risk of complications. The results are comparable to the classic gastric bypass.

Medical illustration: Omega-Loop Bypass (OAGB)

Why This Procedure

Benefits of the Omega-Loop

01
Simplified technique
Only one connection point instead of two - this means a shorter operation and a lower risk of complications.
02
Only one anastomosis
The simplified technique with only one anastomosis shortens the procedure time and significantly reduces the risk of complications.
03
Comparable results to Roux-en-Y
The omega-loop achieves comparable weight and metabolic results to the classic Roux-en-Y gastric bypass.

Results

What the Omega-Loop Achieves

Weight Loss 60-70%

Patients achieve a sustained weight reduction of 60-70% of excess weight with excellent long-term stability.

Shorter Procedure Time

Thanks to the simplified single-anastomosis technique, the procedure time is shorter than with the classic Roux-en-Y bypass.

Technically Reversible and Convertible if Needed

The omega-loop can be converted to a Roux-en-Y bypass or reversed if needed.

Eligibility

Who Is This Procedure Suitable For?

  • BMI over 40
  • BMI over 35 with comorbidities
  • Metabolic syndrome
  • Alternative to the classic Roux-en-Y
“The omega-loop offers excellent results like the classic bypass - with a simplified technique and shorter procedure time.”
Univ.-Prof. Dr. Gerhard Prager
Discuss Eligibility →

Frequently Asked Questions

Well Informed for Your Consultation

What distinguishes the omega-loop from the classic bypass?

With the omega-loop, only one connection (anastomosis) is created between the gastric pouch and the small intestine, while the classic Roux-en-Y requires two anastomoses. This shortens the procedure time and reduces the risk of complications with comparable results.

Who is the omega-loop suitable for?

The omega-loop bypass is particularly suitable for patients with a BMI over 40 or as a revision procedure after sleeve gastrectomy - especially for type 2 diabetes.

What are the long-term results?

The long-term results of the omega-loop are comparable to those of the classic Roux-en-Y bypass. Patients achieve a sustained weight reduction of 60-75% of excess weight and a significant improvement in metabolic comorbidities.

How do I schedule an appointment?

Call us at +43 660 489 58 51 or use the contact form. During the initial consultation, we will discuss together which procedure is optimal for you.

Univ.-Prof. Dr. Gerhard Prager

YOUR SURGEON

Univ.-Prof. Dr. Gerhard Prager

IFSO World President 2023/2024. Over 9,900 procedures. Professor at MedUni Vienna.

Questions about the omega-loop bypass?

+43 660 489 58 51
Book Appointment →

Meet Univ.-Prof. Dr. Gerhard Prager in person.

An initial consultation without expectations - in which we discuss together which path makes the most medical sense.

+43 660 489 58 51 Schedule a Personal Consultation

By phone appointment