Advantages of Gastric Sleeve Weight Loss Surgery
- Promotes weight loss by restricting amount of food that can be eaten at any one time
- Reduces hunger since it removes the part of the stomach that produces the hunger stimulating hormone ghrelin
- Digestion occurs normally as the digestive system is not altered
- Does not cause malabsorption or nutritional deficiencies as it does not involve rerouting or bypassing the small intestine
- Less chance of developing ulcers than with gastric bypass surgery
- Dumping syndrome not likely to occur as the stomach outlet (pyloric valve) remains intact, unlike gastric bypass surgery
- Less complicated procedure than gastric bypass or duodenal switch surgery
- Can usually be performed laparoscopically on extremely obese patients
- Does not require a gastric band being implanted into the body
- Does not require adjustments or fills as with a LAP-BAND or REALIZE Band
- Safer than a combined restrictive/malabsorptive weight loss surgery for patients who have many health problems
- May be converted to gastric bypass or duodenal switch if necessary for additional weight loss
- Expected excess weight loss for stand-alone procedure is 60 to 70% at two years
Disadvantages of Gastric Sleeve Weight Loss Surgery
- As it is a purely restrictive weight loss procedure, inadequate weight loss or weight regain is more likely than with a procedure involving intestinal bypass
- With time, new smaller stomach pouch may stretch (also occurs with gastric bypass surgery)
- Although the gastric sleeve helps control hunger and limit amount of food that can be eaten at any one time, weight loss will not occur without a healthy, low-calorie diet and regular exercise (same as with other purely restrictive procedures such as LAP-BAND and REALIZE Band)
- If performed as the first part of a two-stage process, a second malabsorptive weight loss surgery such as the duodenal switch will need to be performed at a later time
- The surgery is not reversible as a portion of the stomach is permanently removed
- Leaks or bleeding may occur along the stomach stapling edge
- Procedure may not be covered by some insurance companies
- All surgery and anesthesia involves some level of risk including bleeding, blood clots, infection, pneumonia, or complications
- Lack of published data for long-term weight loss results
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