Sleeve Gastrectomy

Understand the Sleeve Gastrectomy procedure for sustainable weight loss. Learn about the laparoscopic approach, stomach reduction, and metabolic health benefits.

Overview And Definition

What Is Sleeve Gastrectomy?

A Sleeve Gastrectomy, often referred to as a stomach sleeve gastrectomy, is a surgical weight-loss procedure that permanently reduces the size of the stomach. During the operation, a surgeon removes approximately 80% of the stomach, leaving behind a narrow, banana-shaped "sleeve." This procedure is strictly restrictive, meaning it works by limiting the amount of food you can consume before feeling full. It does not involve rerouting or bypassing the intestines.

Vertical Sleeve Gastrectomy

The clinical designation vertical sleeve gastrectomy (VSG) highlights the vertical orientation of the staple line used to create the new stomach. During the operation, a specialized calibration tube is inserted to guide the surgeon in creating a uniform and consistent sleeve.

• The vertical staple line is meticulously checked for integrity.
• The excess stomach tissue is removed from the abdominal cavity.
• No foreign devices, like bands, are left inside the body permanently.
  This "vertical" approach ensures that the stomach empties at a controlled rate into the small intestine, providing a sense of satiety that lasts much longer than traditional dieting methods can provide.

Symptoms and Risk Factors

Indications for Sleeve Gastrectomy Surgery

Patients typically pursue this intervention to treat the debilitating symptoms associated with morbid obesity. These include severe sleep apnea, hypertension, and chronic joint pain. By inducing significant weight loss, the procedure can often lead to the "remission" of type 2 diabetes and a drastic reduction in cardiovascular risk factors.

Surgical Risks of Sleeve Gastrectomy

As with any major surgery, a sleeve gastrectomy carries specific risk factors. Short-term complications can include bleeding or a staple-line leak (where digestive juices escape the new stomach). Long-term risks include nutrient deficiencies and the development or worsening of gastroesophageal reflux disease (GERD), as the smaller, pressurized stomach can push acid back into the esophagus.

Diagnosis and Evaluation

The Pre-Surgical Diagnostic Process

Before undergoing surgery, patients must complete a rigorous, two-part evaluation. The first part involves medical screening, including blood panels and an EKG, to ensure the body can handle anesthesia and the healing process.

Internal Assessment

The second part of the evaluation is the Upper Endoscopy. A gastroenterologist must inspect the stomach lining to ensure there are no active ulcers or a large hiatal hernia. If significant damage or a hernia is found, the surgeon may need to repair the hernia during the gastrectomy or recommend a different bariatric procedure that better manages acid reflux.

Treatment and Management

Surgical Execution

The laparoscopic sleeve gastrectomy is performed under general anesthesia. The surgeon makes several small incisions in the abdomen to insert a laparoscope and specialized stapling devices. The larger, curved portion of the stomach is separated and removed from the body entirely. This not only restricts food intake but also significantly lowers the level of "ghrelin"—the hunger hormone—which is primarily produced in the portion of the stomach that is removed.

Revision Surgery

In some cases, patients may require a revision sleeve gastrectomy. This is typically considered if the initial surgery did not result in adequate weight loss, if the patient regained significant weight, or if they developed severe complications like unmanageable acid reflux. A revision might involve converting the "sleeve" into a gastric bypass to introduce a malabsorptive component to the weight loss.

Recovery and Prevention

Post-Operative Diet and Healing

Recovery from a sleeve gastrectomy follows a strict, phased dietary progression. For the first two weeks, patients are restricted to clear liquids, gradually moving to full liquids, pureed foods, and soft solids over about a month. This slow transition prevents the staple line from being stretched or damaged while the tissue heals.

Long-Term Prevention of Weight Regain

Maintaining the results of the surgery requires lifelong lifestyle management. Because the stomach is smaller, patients must prioritize high-protein foods and take daily bariatric vitamins to prevent malnutrition. Preventing the "stretching" of the sleeve involves avoiding carbonated beverages and not drinking liquids during meals, which can wash food through the stomach too quickly and lead to overeating.