A sleeve gastrectomy is performed and then a loop of small bowel is connected to the sleeved stomach. Food has two pathways to leave the stomach, the normal way through the duodenum, and a shorter pathway into the bypassed bowel. There is less nutritional deficiency risk for these patients in the future. The potential exists to reverse the bypass component. The loop of bowel could be disconnected if patients have bad bowel symptoms. It significantly alters the hunger and fullness hormones.
It’s crucial to have an open and honest discussion with your healthcare provider to determine if SASI-S is the right choice for you based on your circumstances, preferences and goals
Single Anastomosis Stomach Ileal Bypass with Sleeve Gastrectomy (SASI-S) is a bariatric surgery that combines sleeve gastrectomy with a single anastomosis stomach-ileal bypass, reducing stomach size and rerouting the digestive tract to promote weight loss.
SASI-S differs from other bariatric surgeries by combining restrictive and malabsorptive components, resulting in significant weight loss and metabolic changes. It offers a simpler surgical technique compared to procedures like gastric bypass while providing similar weight loss outcomes.
Potential benefits of SASI-S include significant and sustained weight loss, improvement or resolution of obesity-related health conditions such as type 2 diabetes and hypertension, and reduced risk of dumping syndrome compared to gastric bypass.
During SASI-S, a portion of the stomach is removed to create a smaller sleeve-shaped stomach, and the small intestine is rerouted to bypass a section of the digestive tract. This limits food intake and reduces nutrient absorption, aiding in weight loss.
Expected weight loss after SASI-S varies but can often result in around 60-80% excess weight loss within the first year after surgery, with continued weight loss over time with adherence to lifestyle changes.
Potential risks and complications associated with SASI-S surgery include infection, bleeding, leaks at the surgical sites, nutritional deficiencies, and gastrointestinal issues. However, these risks are generally lower compared to more complex procedures like duodenal switch.
The recovery period after SASI-S surgery typically ranges from several weeks to months, with patients gradually resuming normal activities under medical supervision. Patients may experience discomfort, dietary changes, and follow-up appointments to monitor progress.
After SASI-S surgery, patients need to make significant lifestyle changes, including adopting a healthy diet rich in protein and nutrients, regular exercise, and attending follow-up appointments with healthcare providers.
Suitable candidates for SASI-S surgery are individuals with severe obesity (BMI ≥ 40) with obesity-related health conditions, who have not achieved weight loss with other methods and are committed to making lifelong dietary and lifestyle changes.
The results of SASI-S surgery can be permanent with proper adherence to lifestyle changes. However, weight regain can occur over time if dietary and exercise habits are not maintained, highlighting the importance of ongoing support and follow-up care.
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