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There are two main types of bariatric surgery that help with weight loss:

  • Restrictive: This type of surgery limits the amount of food the stomach can hold. Restrictive surgeries include the gastric band (also known as lap band) and vertical sleeve gastrectomy (gastric sleeve).
  • Restricitve and Malabsortive: This type of surgery reduces the amount of food the stomach can hold and the amount of nutrients and calories that are absorbed. Gastric bypass is both restrictive and malabsortive.

Catholic Health performs vertical sleeve gastrectomy, gastric bypass surgery and lap banding surgery.

Vertical Sleeve Gastrectomy

Vertical sleeve gastrectomy is a restrictive and irreversible procedure. It removes approximately 85% of the stomach, creating a slim banana-shaped stomach.

Although normal functions of the stomach are preserved, weight is lost because the amount of food that can be consumed is drastically reduced helping you feel fuller faster.

Roux En Y Gastric Bypass Surgery

In this procedure, the stomach is permanently divided into two. The top part becomes the newly created and smaller stomach, and the rest is closed and remains in place. This portion now becomes the bypassed portion of the stomach. It will not receive what is eaten, but it will continue to assist with digestion by producing gastric acid and other digestive juices.

The “new” smaller stomach is connected directly to the middle portion of the small intestine, thus bypassing the rest of the stomach and the upper portion of the small intestine.

Gastric bypass causes weight loss for two reasons:

  1. the amount of food you are able to eat at one time is restricted by the small stomach size
  2. food bypasses a portion of the small intestine where the absorption of nutrients occur

Weight loss occurs more quickly after gastric bypass than after purely restrictive procedures, but it also is considered a more invasive procedure.

Life-long follow up and strict adherence to the dietary guidelines set by your doctor and nutritionist are critical to a healthy and successful outcome.

Laparoscopic Adjustable Gastric Banding (Lap Banding Surgery)

This non-invasive, restrictive procedure places a hollow, silicone ring, or band, around the main portion of the stomach, and a port is secured under the skin of the abdomen.

The band creates a small passageway between the uppermost part and the rest of the stomach. This narrow passageway restricts the amount of food required to feel "full," so less is eaten, which promotes weight loss.

The degree of stomach restriction is controlled by the amount of fluid in the band. Band fluid is adjusted with the injection or removal of fluid through the port. Both the band and the port remain in place until surgically removed.

Patients can expect regular office appointments, as adjustments to band tightness may be needed. Regular follow-up is mandatory and supplementation is commonly needed for as long as the band is present.

One of two devices may be used in restricting the stomach: the LAP-BAND® System or the REALIZE™ Adjustable Gastric Band.

This procedure is reversible.