Why Some Patients Need More Than a Gastric Sleeve – The Role of SADI-S Revision Surgery for Insufficient Weight Loss or Weight Regain

SADI-S Revision Surgery

For many people, gastric sleeve surgery marks a life-changing step toward better health. It reduces hunger, limits portion sizes, and helps patients lose a significant amount of weight — often improving conditions like diabetes, sleep apnoea, and high blood pressure.

But for some, results may slow down over time. Weight loss might plateau, or weight might increase even with continued effort. If this sounds familiar, you’re not alone — and it doesn’t mean your sleeve has failed. It may simply mean that your body needs a different approach to continue progressing. That’s where SADI-S revision surgery comes in.

Understanding the Gastric Sleeve

During a gastric sleeve (or sleeve gastrectomy), around 75–80% of the stomach is removed, leaving a smaller, sleeve-shaped pouch. This limits how much you can eat and reduces hunger hormones, helping with early and effective weight loss.

However, the procedure doesn’t significantly alter the way your body absorbs nutrients and calories. Over time, metabolism can adapt, and the same reduced portions may no longer result in further weight loss.

Why Some Patients Struggle After Gastric Sleeve Surgery

There are several reasons some patients find their results taper off or weight regain becomes an issue:

  • Metabolic adaptation: The body becomes more efficient at using energy, meaning you burn fewer calories. 
  • Stretching of the sleeve: Over time, the stomach may expand slightly, allowing larger portions. 
  • Underlying hormonal factors: Conditions like PCOS, insulin resistance, or thyroid imbalance can affect long-term results. 
  • Weight regain or plateau: Even with healthy eating, the body’s energy balance can shift, leading to stalled progress. 

If any of these apply, SADI-S (Single Anastomosis Duodenal-Ileal Bypass with Sleeve) may be the next step to help achieve sustainable results.

What is SADI-S Revision Surgery?

SADI-S is a surgical advancement that builds on the original sleeve gastrectomy.
It combines the restrictive benefits of the sleeve with an intestinal bypass, meaning the body absorbs fewer calories and nutrients.

In simple terms, it helps reduce both how much you eat and how much you absorb — offering dual benefits for long-term weight loss and metabolic health.

Benefits of Converting from Gastric Sleeve to SADI-S

  • Enhanced weight loss: Many patients who had stopped losing weight after sleeve surgery experience significant additional loss after SADI-S. 
  • Improved diabetes control: SADI-S has shown strong results in improving or even resolving type 2 diabetes. 
  • Better long-term results: Combining restriction and malabsorption reduces the risk of weight regain. 
  • Hormonal balance: Patients often notice improved energy, reduced hunger, and better management of hormonal conditions such as PCOS. 
  • Improved cholesterol and blood pressure: Metabolic improvements are common within months. 

Why Choose Blackrock WeightCare for SADI-S Revision

At Blackrock WeightCare, revision surgery is approached with the same precision, compassion, and care as your first procedure.
You’ll be under the care of Mr William Robb, one of the highest-volume Robotic Bariatric Surgeons in Europe, who has performed hundreds of successful surgeries, including those involving patients with higher BMIs. He has extensive experience in SADI-S and complex revision procedures, ensuring you are in the safest hands possible.

Every patient also benefits from our two-year structured Aftercare Program, which includes:

  • Regular follow-up appointments and progress monitoring 
  • Personalised nutrition and supplement guidance from our dietitians 
  • Ongoing metabolic and hormonal health support 
  • 24/7 clinical access during early recovery 
  • A dedicated multidisciplinary team to ensure long-term success 

To make the journey even more supportive, we also have a dedicated WhatsApp community exclusively for our SADI-S patients. It’s a space where individuals share their experiences, encourage one another, and make the journey pleasant and motivating together.

This combination of world-class surgical expertise, structured aftercare, and peer support is why patients at Blackrock WeightCare continue to thrive — not just after surgery, but for years to come.

If your weight loss has slowed or stopped after a gastric sleeve or if you have experienced weight regain, it doesn’t mean the end of your journey. 

SADI-S revision surgery may be the bridge between where you are and where you want to be — helping you regain control of your health, confidence, and quality of life.

At Blackrock WeightCare, your transformation doesn’t stop with surgery — it continues with the care, support, and guidance that follow.

Your Health. We Care.

Go Surgical Limited
Suite 9, Blackrock Clinic, Blackrock Road, Dublin A94 E4X7