Sleeve gastrectomy (also known as vertical sleeve, gastric sleeve, or tube gastrectomy) is a weight-loss operation performed using laparoscopic or robotic techniques to treat obesity. This restrictive weight-loss surgery helps extremely overweight patients with a BMI of 35 or higher, or a BMI of 30 or higher with obesity-related health conditions, by limiting food intake. The procedure works by reducing stomach capacity, which naturally decreases how much you can eat without disrupting normal digestion.
For patients with severe obesity (BMI of 60+), sleeve gastrectomy sometimes serves as the initial phase of a two-part surgical approach. This strategy allows for significant weight reduction first, making any necessary follow-up weight-loss surgery safer to perform.
The Sleeve Gastrectomy Procedure Process
During surgery, you’ll receive general anesthesia for complete comfort. The surgeon creates 5 – 6 tiny openings across your abdomen. Through one opening, they insert a laparoscope — a slender tool equipped with a camera and light — enabling clear visualization of your internal organs on a screen.
Additional surgical tools enter through the remaining openings. The surgeon removes approximately 75 – 80% of your stomach. The remaining section is shaped into a banana-like tube and sealed with surgical staples. Once complete, the small incisions are closed with stitches. The entire operation typically takes between 60 and 90 minutes.
Benefits of Choosing Sleeve Gastrectomy
- Smaller stomach capacity creates earlier feelings of fullness
- Preserved normal stomach function allows eating most foods in smaller portions
- Removal of stomach section that produces hunger hormones (Ghrelin)
- No dumping syndrome because the pylorus section remains intact
- Avoids intestinal bypass complications
- Can be performed through minimally invasive techniques
- Less complex than gastric bypass procedures
- Provides a safer first step for extremely obese patients needing two-stage surgery
- Shorter operation time compared to bypass surgeries
- Reduced hospital stay versus bypass procedures
- No artificial implants, unlike band surgery
Drawbacks of Sleeve Gastrectomy
- Higher risk of insufficient weight loss or regaining weight compared to procedures that bypass part of the intestine.
- Cannot be reversed
Recovery and Aftercare
- Your healthcare provider will supply pain medication to manage discomfort after surgery
- You’ll need to take stomach acid-reducing medication as directed
- Avoid heavy lifting and vigorous physical activity until your surgeon gives approval
- During the first month post-surgery, consume only small portions of soft foods
- Drink water consistently throughout the day to stay hydrated
- Focus on a nutritious diet high in protein and low in fat
- Your nutrition specialist will create a customized eating plan for your needs
- Lifelong vitamin supplementation and follow-up are typically recommended
Potential Complications
Like all surgical procedures, sleeve gastrectomy carries certain risks. The recommendation for surgery occurs when benefits outweigh these potential risks. Understanding these possibilities before proceeding is essential. While most patients recover without issues, complications can arise depending on individual health factors.
Complications fall into two categories: general medical issues and those specific to sleeve gastrectomy.
General medical complications relate to anesthesia and overall health. This list isn’t exhaustive, but includes:
- Allergic responses to medications
- Significant blood loss requiring transfusion (which carries minimal disease transmission risk)
- Heart attacks, strokes, kidney failure, pneumonia, urinary tract infections
- Anesthesia-related problems
Serious medical issues may result in ongoing health challenges, extended hospital stays, or, in rare cases (less than 1%), death.
Specific sleeve gastrectomy complications include:
- DVT (dangerous blood clots forming in deep leg veins)
- Injury to surrounding organs
- Stomach contents leaking from the staple line, potentially causing serious infection
- Gastroesophageal reflux disease (GERD)
- Stricture or narrowing of the sleeve