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Gastric Bypass Surgery > Introduction

The Roux-en-Y Gastric Bypass (RYGB) or “Stomach Stapling” remains the gold standard to which other weight loss operations are compared. It is still the most frequently performed weight loss surgery procedure in the United States. The Gastric Bypass takes advantage of both restriction and malabsorption to work. The entire procedure is performed laparoscopically. The average expected weight loss with the RYGB procedure is around 80% of excess weight. About 50% of the expected weight loss will be lost in the first 6 months after the operation. The remaining half is lost slower over the remaining half to one year. With good compliance an 80% to 90% chance of maintaining the weight loss long-term can be expected, and 80% to 90% of patients have at least improvement or resolution of their medical problems.

Proceeding with weight loss surgery is a very personal and often difficult decision. Educating yourself about weight loss surgery is a very important first step. Although the information presented here may be very helpful, patients have repeatedly told me that attending seeing a surgeon is most helpful.

How Gastric Bypass Surgery Works >>

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Dr Clement Tsang
Consultant Surgeon

Waratah Private Hospital clinic
Level 2, 31 Dora st Hurstville 2220

Keyhole surgery Centre

 Level 8, 187 Macquarie st, sydney
Mon-Friday 8 to 4.30pm 

Campbelltown Private Hospital Clinic
Suite 12, level 1

42 Parkside Crescent, Campbelltown 2560