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Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASI-S) in Dublin

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Expected excess weight loss: 

70-80%

Average procedure time:

60 minutes

Average length of hospital stay: 

1-2 nights

Average recovery time:

2 weeks

When might a surgeon recommend Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASI-S) Surgery for me?

Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASI-S) is often recommended for individuals who are struggling with severe obesity and have not found success with conventional weight loss methods such as diet, exercise, or medications. 

The procedure is particularly suitable for patients with a Body Mass Index (BMI) of 40 or higher. It may also be considered for patients with a BMI between 35 and 40 who have one or more obesity-related health conditions, such as type 2 diabetes, high blood pressure, sleep apnea, or heart disease.

If you are experiencing these challenges and want a solution that offers both effective weight loss and long-term health improvements, SASI-S may be the right option for you. Each patient is assessed on an individual basis at Blackrock WeightCare, ensuring that your personal health goals and medical history are taken into account.

Quick guide

What is Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASI-S) Surgery?

SASI-S is a modern bariatric procedure that combines the benefits of two well-established surgeries: sleeve gastrectomy (commonly known as a gastric sleeve) and one anastomosis gastric bypass (OAGB). The primary aim of the SASI-S procedure is to help patients reduce their food intake and limit the absorption of calories, fats, and sugars.

The surgery is performed using robotic-assisted techniques at Blackrock WeightCare, offering patients a minimally invasive option. This approach ensures shorter recovery times, minimal scarring, and enhanced precision during surgery.

The procedure consists of two stages:
  1. Sleeve Gastrectomy: In the first step, the surgeon removes approximately 75-80% of the stomach. This not only reduces the stomach’s capacity, limiting the amount of food you can consume, but also reduces the production of the hunger hormone ghrelin, helping control appetite.
  2. Ileal Bypass: The second step involves connecting the remaining portion of the stomach (antrum) to the lower part of the small intestine (ileum). This allows part of the food to bypass the upper small intestine, reducing the absorption of calories, fats, and sugars, leading to significant weight loss.

What are the Results of Single Anastomosis Stomach-Ileal Bypass with Sleeve Gastrectomy (SASI-S) Surgery?

The results of SASI-S surgery can be transformative, helping patients achieve substantial weight loss and improving or resolving obesity-related health conditions. On average, patients can expect to lose up to 80-90% of their excess weight over time, provided they follow their surgeon’s recommendations and adhere to a prescribed diet and exercise plan. The procedure also offers the following benefits:

  • Greater weight loss compared to a gastric sleeve alone.
  • Lower risk of weight regain in the medium term compared to the gastric sleeve.
  • Reduced risks of long-term nutritional deficiencies, making it a safer option in the long run.
  • Positive impact on metabolic conditions, including significant improvements in type 2 diabetes, cholesterol levels, and overall lipid profiles.
  • Reduced acid reflux, thanks to decreased pressure on the stomach.
  • Reversibility, offering patients the option to reverse the procedure back to a gastric sleeve if necessary.
  • Lower risk of internal hernias and lower risk of staple-line leaks

What can you expect after SASI-S Surgery?

Post SASI-S surgery, most patients can expect to be discharged within 24-48 hours. A structured post-surgery plan will be provided, which includes detailed dietary guidelines and exercise recommendations. These steps are crucial to ensure long-term success and to support your new, healthier lifestyle.
  • Recovery Time: Patients typically return to their normal daily activities within 5 to 7 days. Light activity is encouraged within a few hours after surgery to promote healing and reduce the risk of complications.
  • Diet Transition: For the first two weeks following surgery, you may feel fatigued as your body adjusts to a low-calorie, liquid diet. However, energy levels typically increase once you transition to soft foods and a balanced diet.
  • Exercise: After surgery, you will be encouraged to start light exercises. More intense physical activities can be resumed after six weeks, helping you maintain your weight loss and overall health.

The Benefits of SASI-S

SASI-S offers several advantages compared to other bariatric procedures. 

These include:

  • Improved Weight Loss: SASI-S provides greater and more sustained weight loss compared to the gastric sleeve alone.
  • Lower Risk of Weight Regain: The combined effects of food restriction and reduced absorption lower the chances of weight regain over time.
  • Minimised Nutritional Deficiencies: SASI-S carries a lower risk of long-term nutritional deficiencies compared to other procedures, as less of the digestive tract is bypassed.
  • Metabolic Health Benefits: SASI-S has a positive effect on obesity-related conditions such as type 2 diabetes, high cholesterol, and other metabolic issues.
  • Reversibility: The procedure can be reversed back to a gastric sleeve if required.
  • Reduced Risk of Reflux: Pressure on the stomach is reduced, lowering the chances of acid reflux.
  • Lower Risk of Complications: The procedure poses a lower risk of internal hernias and staple-line leaks compared some procedures.

Interested in learning more about SASI-S?

At Blackrock WeightCare, we are committed to providing tailored care based on your individual health needs and goals. 

Our experienced team will assess your suitability for SASI-S surgery, guide you through every step of the process, and support your journey to a healthier life.

Your Health. We Care. At Blackrock WeightCare, we provide dedicated follow-up care for a minimum of 2 years to ensure that any risks are minimized. During this time, we also guide you on how to manage your health and practice self-care for the future. Learn more about our comprehensive Weight Loss Aftercare here.

SASI-S Enquiries

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