Weight loss surgery procedures or known as Bariatric surgery helps you lose weight and lowers your risk of medical problems associated with obesity. Three common types of weight loss surgery are Roux-en-Y (Gastric Bypass), Biliopancreatic Diversion (Duodenal Switch) and Lap Band (Adjustable Gastric Banding).
1. Roux-en-Y procedure
In the Roux-en-Y procedure is a weight loss surgery options, the surgeon creates a small pouch at the top of the stomach. The pouch is the only part of the stomach that receives food.This greatly will limit the amount that you can comfortably eat and drink at one time. The small intestine is then cut a short distance below the main stomach and connect it to the new pouch. Food and liquid flow directly from the pouch into this part of the intestine bypassing most of the stomach.
The stomach, however, continues to make digestive juices to make breakdown food. So, the portion of the intestine still attached to the stomach is reattached farther down. It allows the digestive juices to flow to the small intestine. Notice that the food travels through a portion of the small intestine before most of the digestive juices are added which limits nutrients absorption. Weight loss is achieved by restricting a number of foods that the stomach can hold and by reducing the amount calories that are absorbed.
2. Biliopancreatic Diversion
Biliopancreatic Diversion (Duodenal Switch) is one of the types of weight loss surgery procedures involves removing about eighty percent of the stomach. The valve that realizes food to the small intestine is left along with the first part of the small intestine called the duodenum. The surgery bypasses the majority of the intestine by connecting the end portion of the intestine to the duodenum near the stomach because most of the small intestine is bypassed. The amount of calories and nutrients absorbed are reduced which together with the smaller stomach leads to weight loss.
3. Lap Band
In the Lap-Band procedure, a band containing an inflatable balloon is placed around the upper part of the stomach and fixed in place. This creates a small stomach pouch with a very small opening to the larger part of the stomach.A small port creating and an opening is placed under the skin. A tube leads from the pot to the band by injecting or removing fluids. From this port, the balloon can be inflated or deflated to adjust the size of the opening and the stomach pouch gastric banding restricts the amount of food that your stomach can hold yet doesn’t reduce the absorption of calories and nutrients.
4. Intragastric Ballon
Gastric balloon is suitable for obese patients who tend to overeat due to the lack of satiety in their stomach and worsening obesity. The intragastric balloon is the non-invasive and temporary treatment to help obese patients reduce stomach volume. First, patients will be put under local anesthesia, an endoscopy will then be placed inside the stomach for the surgeon to observe the stomach condition. Next, a gastric balloon will be placed inside the stomach with the help of an endoscope. Saline with blue dye will then be injected into the balloon via a catheter to increase its size.
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The volume of saline to be injected depends on the individual’s conditions. The gastric balloon will float inside the top of the stomach effectively reducing stomach volume and giving a sensation of satiety. As the intragastric balloon can not be placed in the stomach for more than six months. It can only be used as a temporary measure. Patients should maintain a balanced diet and exercise frequently to achieve effective weight loss.
5. Gastric Sleeve
The sleeve gastrectomy is a weight loss surgery option which limits the amount of food you can eat by reducing the size of your stomach. The surgical instrument is done by passing through the Trocars to access the abdominal cavity.The surgeon examines the abdomen using a laparoscope or video camera. The average human stomach could expand to hold around 1 to 1.5 liters of food. While in the stomach, food is combined with digestive enzymes to help break down the food to a more simple form so that it can be easily digested and absorbed.
During a sleeve gastrectomy, a thin vertical sleeve is created by using a stapling device. This sleeve will typically hold 50 to 150 milliliters. The excised portion of the stomach is removed.The newly created gastric sleeve is able to hold approximately one-tenth of what the stomach was able to hold before. The smaller stomach sleeve can restrict the amount of food you can eat before feeling full.