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Sleeve Gastrectomy Surgery
The sleeve gastrectomy originated as the restrictive part of the duodenal switch operation. In the last several years, it has also been used as a staging procedure prior to a gastric bypass or duodenal switch in very high risk patients. It has also been used as a primary, stand-alone procedure.
How is Sleeve Gastrectomy Performed?
Most sleeve gastrectomies performed today are performed laparoscopically. This involves making five or six small incisions in the abdomen and performing the procedure using a video camera (laparoscope) and long instruments that are placed through these small incisions.
Sleeve gastrectomy is a restrictive form of operation in which approximately 2/3rd of the left side of the stomach is removed laparoscopically using endoscopic staplers. The stomach thus takes the shape of a hockey stick or sleeve. It can be performed as either first stage of a two-stage procedure for super obese (BMI >60) where it can be followed with malabsorptive surgery or as a single stage procedure by itself.
The capacity of the stomach ranges between 60 - 100 cc. Unlike many other forms of bariatric surgery, the outlet valve and the nerves of the stomach remains intact while only the stomach size is drastically reduced. Though a non-reversible procedure, the part of the stomach that contains Ghrelin, the hormone for hunger is removed; it drastically reduces your appetite and hormones that controls diabetes.
The hour glass configuration only constricts the upper stomach thus acting as a pure restrictive operation. Since the outlet is small, food stays in the pouch longer and one also feels satiated for a longer time. Scheduled follow-up visits will be at 6 weeks, monthly for the first six months and yearly thereafter or as and when medically required.
Sleeve Gastrectomy May be Performed for the Following Reasons:
- Body Mass Index is greater than 60
- Severe comorbidities (cardiac, pulmonary, liver disease)
- Advanced age
- Inflammatory bowel disease (Crohn's disease)
- Need to continue specific medications (anti-inflammatory medicines, transplant medications)
- Need for continued surveillance of the stomach (that couldn't be evaluated after a gastric bypass)
- Severely enlarged liver found during the operation
- Severe adhesions (scarring) to the bowel found during the operation
- Any combination of the above that significantly increases the patient's risk
- Preservation of stomach function
- No disconnection of normal anatomy
- Technically simpler with 3 days hospital stay
- Most food can be consumed, albeit in small amount
- No dumping syndrome or nutritional deficiency
- Assures 60 - 70% excess weight loss
- Best for the reproductive age group
- Improvement in associated co-morbidities
- Appealing option for people not fit for malabsorptive or combined procedures
- Follow-up after 6 weeks and 6 months, further once a year.