Single anastomosis stomach-ileal bypass with sleeve gastrectomy (SASI-S)
Please see below for general advice on SASI-S, or contact us for more detailed information.
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Single anastomosis stomach-ileal bypass with sleeve gastrectomy (SASI-S)
What is SASI-S?
A single anastomosis stomach-ileal bypass with sleeve gastrectomy (SASI-S) combines the benefits of a gastric sleeve (where a section of the stomach pouch is removed) and a gastric bypass.
Here’s what the lengthy name means:
- Single = one
- Anastomosis = a connection created between tubular structures, in this case, loops of the intestine
- Stomach-ileal bypass = a procedure to join the bottom part of the stomach to the lower part of the small bowel (ileum). About half of the food you eat then bypasses the first part of the small intestine, reducing the absorption of fats, sugar and calories
- Sleeve gastrectomy = a procedure to significantly reduce the size of your stomach so that you feel full more quickly and produce less of the hunger hormone, ghrelin.
How is SASI-S different from a gastric sleeve?
SASI-S involves a gastric sleeve operation but the food stream is only partially diverted from the proximal small bowel. The remaining part of your stomach is removed in a both a SASI-S and gastric sleeve.
What are the benefits of SASI-S?
A SASI-S combines two different approaches to surgical weight loss. You’re reducing the size of your stomach and reducing your calorie absorption.
You’re also less likely to be hungry because your body reduces intestinal brake hormones when undigested food hits the distal small bowel.
That makes SASI-S both a restrictive treatment and a hormonal one – the best of both worlds.
Studies show that, when compared to other weight loss surgeries, SASI-S:
- Has no greater risks but does show greater benefits
- Enables you to lose significantly more of your excess weight at 12 months
- Results in greater improvements in type 2 diabetes and gastro-esophaegeal reflux disease(GERD)
A recent retrospective study of over 600 SASI-S patients in 7 countries found that, after 12 months:
- There was a significant reduction in most patients’ BMI, with an excess weight loss of 84%
- People recovered from other obesity-related conditions including:
- 84% of patients with type 2 diabetes
- 76% of patients with high blood pressure
- 85% of patients with high cholesterol
- 98% of patients with sleep apnoea
- 92% of patients with GERD.
What are the disadvantages of SASI-S?
There are risks involved with any surgery, such as bleeding, clotting, reacting to the anaesthetic or developing an infection.
Will a SASI-S help me lose weight and keep it off?
A SASI-S aims to help you lose weight by making your stomach smaller so you can’t eat as much and by changing the way your hormones regulate your sense of being hungry or full. When followed up after 12 months, many patients have lost a significant amount of excess weight.
We can expect that, like the gastric sleeve and gastric bypass procedures a SASI-S is based on, you’re likely to maintain long-term weight loss if you’re able to make lasting lifestyle changes after your operation.
How can Life Weight Loss Centre help?
If you’d like to learn more about a SASI-S procedure, then please make an appointment – we’d love to discuss your goals, whether a SASI-S would be a good fit and the support we offer.
Disclaimer: All information is general in nature. Patients should consider their own personal circumstances and seek a second opinion. Any surgical or invasive procedure carries risks.
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