The USC Bariatric Surgery Program offers different surgeries:
This is the latest restrictive weight loss procedure that reduces food intake due to the reduction of stomach size. The surgeon creates a small, sleeve-shaped stomach in the shape of a banana. The stomach pouch that is created is larger, yet narrower than the one created in the Laproscopic Roux-en-Y Gastric Bypass. But, similarly, the sleeve reduces the secretion of the hunger hormone ghrelin. The sleeve gastrectomy can also be considered as an option for obese patients with a large abdominal hernia because it also helps with hernia treatment.
Laparoscopic (Minimally Invasive) Roux-en-Y
In this innovative, minimally invasive technique, the surgeon makes five small incisions through which a camera and long tools are threaded. Then a 150 cm segment of the small intestine is created and it is sutured to a tiny gastric pouch. The small intestine absorbs nutrients from food, but with less intestine, the body takes in fewer calories. Much of the stomach is then removed, reducing it to about the size of a plum. The pouch is sealed with tiny sutures before reconnecting it with the intestine, restricting food intake.
This surgery is designed for patients who have a BMI between 40 and 50, and is performed by USC surgeons with experience in laparoscopic techniques.
LAP-BAND Adjustable Gastric Banding System
This minimally invasive surgery is designed to induce weight loss by restricting food consumption. It involves applying a prosthesis (the LAP-BAND) around the stomach, creating a small gastric pouch and calibrated opening to the rest of the stomach.
By creating a smaller gastric pouch, the LAP-BAND System limits the amount of food that the stomach will hold at any time. The inflatable ring controls the flow of food from this smaller pouch to the rest of the digestive tract. The patient will feel comfortably full with a small amount of food. And because of the slow emptying, the patient will continue to feel full for several hours – reducing the urge to eat between meals.
This surgery is designed for patients who have a BMI between 40 and 50, and is performed by USC surgeons with experience in LAP-Band Techniques.
Distal Gastric Bypass with the Duodenal Switch
This operation entails removal of approximately 75 percent of the stomach to initially decrease the amount of food one can consume. The food that is ingested is then re-routed to the last (distal) half of the small intestine, “bypassing” the final half of the intestine so that food absorption is decreased. Bile is also diverted away from the food that is ingested so that fats are properly absorbed.
A revision of weight-loss surgery is done on a patient who underwent weight loss surgery, including lap band, duodenal switch, sleeve and gastric bypass, and may be experiencing a variety of symptoms or complications after the operation. Some of the symptoms go away with simple medical measures, but others will persist and become even worse over time. These symptoms can include vomiting, heartburn, chest pain, regurgitation of food, constant abdominal pain, stomach and intestinal ulcers and other gastrointestinal symptoms. Other symptoms can include excessive weight loss and inability to maintain a stable and reasonable weight, poor or no weight loss, and even weight regain. Vitamin and protein deficiency could be another cause for concern and need for revision.