Single Anastomosis Duodeno-Ileal Bypass (SADI)
Benefits Of The SADI-S Procedure
How Is The Surgery Performed, And Does It Hurt?
Eligibility Criteria For SADI
At Nova Bariatrics, we follow a strict assessment protocol to qualify candidates for this surgery. We examine the condition and evaluate whether or not SADI (Single Anastomosis Duodenal-Ileal Bypass) is the best option for you. The procedure starts off with checking preoperative parameters that include medical history and consultations with our bariatric surgeons to determine your suitability and if the surgery will yield the required outcome.
You are automatically eligible for this surgery if:
- Your Body Mass Index (BMI) is 40 or more.
- BMI is in the range of 35-39.9 kg/m2 with obesity-related comorbidities such as Type 2 diabetes or sleep apnea,
- Or, you have a BMI of 40 kg/m2 or greater, regardless of any history of obesity-related conditions.
- We only perform surgeries on those who are 18 years of age or older.
Other than that, you must be set on making a lifelong choice to adjust to a healthier way of life. This means modifying your diet and introducing physical activity to maintain your weight loss post-surgery.
Success Rate Of SADI
Your stomach size is reduced by 80% after this procedure, rerouting a part of the small intestine to the remaining stomach and bypassing about 75% of the digestive system. After we perform SADI surgery on you, expect to lose between 80-90% of your excess weight within the span of 1.5 years, with the most significant shed occurring in the first 3 months. With this procedure, you will not only get rid of excessive weight but also alleviate many obesity-related comorbidities.
Frequently Asked Questions
What is SADI-S surgery?
SADI-S (Single Anastomosis Duodeno-Ileal bypass with Sleeve gastrectomy) is an advanced bariatric procedure that combines a gastric sleeve with a single intestinal bypass. It offers powerful, durable weight loss with a simpler design than the traditional duodenal switch. Dr. Alibhai offers SADI-S to patients who need significant weight loss or revision from a prior sleeve.
Who is a candidate for SADI-S?
SADI-S is typically recommended for patients with a higher BMI, those who need substantial weight loss, or those revising from a previous gastric sleeve that did not achieve enough results. A consultation with Dr. Alibhai at Nova Bariatrics determines whether SADI-S fits your medical needs.
How is SADI-S different from a duodenal switch?
SADI-S uses a single intestinal connection (anastomosis), while the traditional duodenal switch uses two. The single connection makes SADI-S a technically simpler operation with a lower risk of certain complications, while still delivering strong weight loss and metabolic benefits.
How much weight can I lose with SADI-S?
SADI-S produces significant, durable weight loss comparable to the duodenal switch, with many patients losing the majority of their excess body weight. As with all bariatric procedures, results depend on following the post-operative diet, vitamin plan, and follow-up schedule.

