SADI is built for exactly this: when weight loss needs a stronger, more comprehensive surgical approach.
In short: if a sleeve alone isn't likely to be enough, or hasn't been, SADI-S is the stronger option. It combines a gastric sleeve with a single intestinal bypass connection. It typically produces more weight loss than a sleeve alone, has strong effects on type 2 diabetes, and can be added later for patients who need more after a sleeve. It requires lifelong vitamins and lab monitoring. Transform performs it as an outpatient procedure, and you go home the same day.
Bryan went from a playing weight in football to putting on weight. Working with Dr. Billing, he lost almost 200 pounds and regained his life.
Skye spent a lifetime struggling with her weight. After learning about her options and talking with Dr. Billing, she found a solution that was right for her.
Sean reached a point where he wanted a serious effort and a long-term solution for himself and his family. He lost weight and found a sustainable path forward.
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SADI-S stands for single anastomosis duodeno-ileal bypass with sleeve gastrectomy. Nobody says that out loud. Here’s what it means:
Because there’s only one connection and the natural valve at the bottom of the stomach is kept, SADI-S is simpler than older procedures in this family, while still producing significant, lasting weight loss.
SADI-S is often considered for people who:
It may not be the best fit if you have significant acid reflux, or if you can’t commit to lifelong vitamins and lab monitoring.
It’s easy to think of weight loss surgery as simply making the stomach smaller. The digestive system plays a role in hunger, digestion, metabolism, and hormonal signals, and different procedures change those signals in different ways. That’s why the right procedure matters, and why the choice depends on your health, your biology, and your goals.
Most patients lose roughly 35 to 40% of their total body weight within two years, more than a sleeve or bypass typically produces. Many patients also see significant improvement in type 2 diabetes.
Risks include those of any weight loss surgery, such as leaks, bleeding, and blood clots, plus a higher risk of vitamin, mineral, and protein deficiencies than a sleeve. That’s why long-term follow-up is built into every SADI-S plan.
SADI-S is recognized by the American Society for Metabolic and Bariatric Surgery as an appropriate weight loss surgery, but not every practice offers it. Transform does, and performs it as an outpatient procedure.
Many insurance plans cover SADI-S surgery when you meet their criteria, which often include BMI requirements and documentation of past weight loss attempts. Because Transform performs surgery in an ambulatory surgery center rather than a hospital, self-pay pricing is typically lower than hospital-based programs.
Financing is available, and our team verifies your benefits before you commit to anything. We’ll walk you through the costs at your consultation.
Transform performs SADI-S surgery for patients across the greater Seattle area and Portland. Consultations, testing, and follow-up happen at our Lynnwood, Kirkland, Edmonds, or Portland clinic, or by video. Surgery takes place at our own ambulatory surgery center in Edmonds, Washington.
Bottom line: when a sleeve alone isn’t likely to be enough, or hasn’t been, SADI-S is the stronger answer, from a team that performs it routinely and stays with you for the long haul. The right procedure depends on you, and that’s where the conversation starts.
Single anastomosis duodeno-ileal bypass with sleeve gastrectomy. It combines a gastric sleeve with a single intestinal bypass connection.
It depends on the person. SADI-S often leads to more weight loss and has one connection instead of two, but it requires closer nutritional monitoring. Bypass is often preferred for people with reflux.
Often, yes. SADI can be added as a second step for patients who need more weight loss after a sleeve.
Yes. Daily vitamins and minerals and regular lab work are lifelong after SADI-S.
Most patients lose roughly 35 to 40% of their total body weight within two years, more than a sleeve alone typically produces. Individual results depend on your starting point and the plan around the surgery.
It’s a simplified version. A traditional duodenal switch has two intestinal connections; SADI-S has one, which makes it a shorter procedure with less risk of certain complications, while keeping most of the benefit.
