Obesity Surgery - Laparoscopic Roux-en-Y Gastric Bypass

Gastric Bypass Surgery

What is Laparoscopic gastric bypass surgery?

  • Laparoscopic gastric bypass surgery reduces the size of your stomach (melon to tangerine)
  • Some alteration in nutrient and vitamin absorption from the intestine
  • Performed by keyhole (laparoscopic) surgery, which only leaves a few small scars

How does gastric bypass surgery work?

  • Through restriction of the stomach helping patients 'feel full' sooner
  • Through some malabsorption as food meets  digestive juices later
  • Changes occur in the hormones released from the bowel and stomach which control the feeling of hunger
Gastric Bypass Surgery
Why is laparoscopic gastric bypass surgery good?

• Most commonly performed obesity operation for morbid obesity
• Has excellent results
• Can resolve type 2 diabetes in up to 80% of cases

Why might laparoscopic gastric bypass surgery not be good?

• Major operation that alters the anatomy of your stomach
• Long term vitamin supplementation and blood tests required
• Long term follow-up essential
• Some late regain in weight
• Significant weight loss may result in excess skin requiring cosmetic surgery

What are the risks of laparoscopic gastric bypass surgery?

• Bleeding (1-5%)
• Anastomotic leak (join) (1-3%)
• Chance of vitamin or mineral deficiency, avoided by taking supplements
• Dumping (30%) - when sweet foods cause you to sweat and feel faint
• Hair thinning

What results can I expect from gastric bypass surgery?

• Average long term excess weight loss of 60%

What do I need to do?

• Be committed to losing weight. It will change how you eat.
• Have regular blood tests
• Take your vitamin supplements
• Attend your follow-up appointments

If you have any other questions about obesity surgery e-mail