Clinical Updates
Bariatric Surgery
Laparoscopic sleeve gastrectomy offers a lower risk alternative to the gastric bypass procedure
04/09/2009
Some individuals seeking weight-loss surgery are considered to be high-risk candidates for the more common procedures including laparoscopic gastric bypass (LRYGB) or biliopancreatic diversion/duodenal switch (LBPD/DS). In these cases, a sleeve gastrectomy (SG) can be performed as the first of a two-stage procedure that ultimately includes either the LRYGB or BPD/DS.
SG is a simpler laparoscopic procedure that does not involve rerouting the digestive tract, minimizing tissue trauma and promoting a speedier recovery. During the sleeve gastrectomy, the stomach is completely partitioned using surgical staples and approximately two-thirds of it is removed. Sleeve gastrectomy avoids some of the complications associated with the other major bariatric operations, including intestinal obstruction and anastomotic strictures, and as a purely restrictive procedure, it significantly reduces the risk of malabsorption of nutrients, including proteins, minerals and vitamins.
Advantages of sleeve gastrectomy
Patients typically lose enough weight following SG to significantly reduce their risk profile. If necessary, they can then undergo a more definitive second bariatric procedure. On average, sleeve gastrectomy patients lose 50 to 70 percent of their excess body weight in the first year. This compares favorably with the 30 to 40 percent and 60 to 80 percent excess weight loss rates associated with adjustable gastric banding and gastric bypass operations, respectively. Its effectiveness has been compared to and found to be superior to adjustable gastric banding, without the potential foreign-body and port complications or the need for frequent postoperative adjustments.
Sleeve gastrectomy may also be used as a stand-alone procedure for certain morbidly obese patients who are not candidates for the other bariatric procedures. These include patients with inflammatory bowel disease (IBD) or multiple previous abdominal operations with the resultant formation of excessive intestinal adhesions, or those with certain medical conditions whose treatment requires an intact digestive tract. Sleeve gastrectomy may also be indicated for patients who require weight-loss prior to urgent non-bariatric surgeries, such as those for cancer or orthopedic injury.
Despite its excellent short- and medium-term results and safety profile, sleeve gastrectomy is a relatively new procedure and its long-term outcomes are unknown. As with other bariatric surgeries, durable results will depend upon behavioral and lifestyle changes that support the procedure’s weight-loss objectives.
UCLA bariatric program
The UCLA Laparoscopic and Robotic Bariatric Surgery Program offers a range of surgical treatments for obesity and has been designated a Bariatric Surgery Center of Excellence by the American Society for Metabolic and Bariatric Surgery. The UCLA team lays the foundation for successful postoperative outcomes by providing its patients with a thorough preoperative education, preparation and support program. To ensure positive outcomes, UCLA physicians favor an aggressive postoperative approach to patient care, coordinating this with the patient’s own primary care physician.