SADI-S (Single Anastomosis Duodenal-Ileal Bypass with Sleeve Gastrectomy) is an advanced form of bariatric surgery that combines stomach reduction with intestinal rerouting. It typically results in 70–80% excess weight loss, often surpassing outcomes from gastric sleeve or bypass procedures, especially for patients with a BMI over 40 seeking long-term success.
Choosing weight loss surgery isn’t something people decide overnight. It’s a deeply personal choice, driven by the desire to regain health, energy, and confidence. For some, the goal is to walk without pain or keep up with family activities. For others, it’s about reducing the consequences of obesity, such as heart disease, diabetes, and reduced mobility.
In this blog post, you’ll learn why more people are turning to bariatric surgery in Houston, how SADI-S works, how it compares to other bariatric options, the real-life benefits patients experience, who should consider this option, and how Slim Surgical’s expertise in robotic-assisted surgery makes patients’ journeys safer and more effective.
When people pursue bariatric surgery in Houston, they’re looking for more than cosmetic results—they want a reset for their health. Surgery helps the body process food differently, reduces hunger hormones, and supports sustainable eating habits.
According to the American Society for Metabolic and Bariatric Surgery (ASMBS), bariatric surgery is one of the most effective and lasting treatments for severe obesity. It not only supports significant and sustained weight loss but also helps improve, prevent, or even resolve many obesity-related conditions such as type 2 diabetes, heart disease, high blood pressure, sleep apnea, and certain types of cancer. However, not every procedure offers the same benefits or long-term durability.
That’s where SADI-S stands out. It’s designed for patients who want lasting weight loss and metabolic improvement, even if other surgeries didn’t provide the desired results.
SADI-S combines the best parts of two proven procedures—the sleeve gastrectomy and the intestinal bypass—into one streamlined operation.
Here’s what the SADI-S surgical process typically involves:
This two-step structure helps patients achieve steady, sustained weight loss and metabolic improvements such as diabetes remission.
When performed through robotic surgery in Houston, SADI-S offers exceptional precision. Robotic systems allow surgeons like Dr. Angela Kaza at Slim Surgical to make ultra-precise movements, often resulting in smaller incisions, faster recovery, and less pain compared to traditional methods.
How SADI-S Compares to Standard Bariatric Options
Below is a side-by-side look at how SADI-S compares with other common weight loss surgeries:
| Procedure | Average Weight Loss | Recovery Time | Best Candidate | Long-Term Monitoring |
| Gastric Sleeve | 50-60% | 2-4 weeks | BMI 35-45 | Moderate |
| Gastric Bypass | 60-70% | 3-4 weeks | GERD, diabetes | High |
| SADI-S | 70-80% | 2-3 weeks | BMI 40+, revisions | High |
| Duodenal Switch | 70-80% | 4-6 weeks | BMI 50+, super obesity | Very High |
Why Many Patients Choose SADI-S:
After surgery, maintaining proper nutrition is key to long-term success. Learn about the essential vitamins and supplements you’ll need after weight-loss surgery to support healing, energy, and overall health.
SADI-S isn’t right for everyone, but it can be a powerful solution for:
For patients in Northwest Houston and surrounding areas, Slim Surgical provides thorough pre-surgical assessments to determine whether SADI-S or another procedure, such as a gastric sleeve or bypass, is the best fit.
Robotic surgery in Houston has redefined what’s possible in bariatric care. Using advanced robotic systems, Dr. Kaza can perform SADI-S with:
Robotic precision means every cut, stitch, and connection is made with accuracy beyond what the human hand alone can achieve. Patients often experience less post-operative discomfort and return to normal activity faster.
Slim Surgical offers a complete approach to bariatric care—from pre-operative education to lifelong follow-up. Led by Dr. Angela Kaza, the team combines advanced technology with compassionate, individualized care.
Highlights of Slim Surgical’s approach:
In addition to SADI-S, Slim Surgical also offers gastric sleeve, gastric bypass, and duodenal switch, along with medical weight management programs for patients who prefer non-surgical options.
Learn more about Dr. Kaza’s experience or read patient success stories to see how Slim Surgical supports Houston patients at every step.
SADI-S uses a single intestinal connection (anastomosis), while gastric bypass uses two. This simplifies the surgery while still achieving comparable or even better weight loss and metabolic improvements.
Most patients stay in the hospital for one to two days. Light activity is encouraged soon after surgery, and many return to work within two to three weeks. Diet gradually progresses from liquids to soft foods under medical supervision.
Yes. Lifelong supplementation is required to prevent deficiencies. Patients typically take a daily multivitamin plus calcium, vitamin D, iron, and B12. Regular lab monitoring helps ensure proper nutrition.
Coverage depends on your plan and medical necessity. The Slim Surgical team assists patients with pre-authorization and paperwork to streamline the process.
Yes. Studies report up to 80–85% diabetes remission after SADI-S. Many patients also experience lower blood pressure, reduced sleep apnea, and relief from joint pain within months.
SADI-S represents an advanced option in bariatric surgery, delivering stronger and more durable weight loss outcomes than the gastric sleeve or bypass alone—particularly for patients with higher BMI or those who need more aggressive metabolic intervention. When performed using robotic-assisted technology at Slim Surgical, patients benefit from enhanced precision, smaller incisions, and often smoother recovery.
Dr. Angela Kaza at Slim Surgical, board-certified in both bariatric surgery and obesity medicine, brings extensive expertise in robotic SADI-S procedures to patients throughout Houston.
If you’re considering bariatric surgery and want to explore whether SADI-S matches your health goals, now is the time to take action.
Schedule a consultation with Slim Surgical today. Call 346-421-3813 or request an appointment online to meet with Dr. Kaza, review your candidacy, and develop a personalized surgical plan.
Start your journey toward health and confidence with Slim Surgical. Our expert surgeon is here to guide you every step of the way with advanced care tailored to your goals.
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