How does the gastric band work?
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How does the gastric band work?
Admin Tue Aug 03, 2010 1:40 am
The placement of the band creates a small pouch, or stoma, at the top of the stomach. This pouch holds approximately ½ cup of food. (The typical stomach holds about 6 cups of food.) The pouch fills with food quickly, and the band slows the passage of food from the pouch to the lower part of the stomach. As the upper part of the stomach registers as full, the message to the brain is that the entire stomach is full, and this sensation helps the person to be hungry less often, feel full more quickly and for a longer period of time, eat smaller portions, and lose weight over time.
As patients lose weight, their bands will need adjustments, or “fills,” to ensure comfort and effectiveness. The gastric band is adjusted by introducing a saline solution into a small access port placed just under the skin. A specialized non-coring needle is used to avoid damage to the port membrane and prevent leakage. There are many port designs (such as high profile and low profile), and they may be placed in varying positions based on the surgeon’s preference, but are always attached (through sutures, staples, or another method) to the muscle wall in and around the diaphragm.
Adjustable gastric bands hold between 4 to 12 cc of saline solution, depending on their design. When the band is inflated with saline solution, it places pressure around the outside of the stomach. This decreases the size of the passage between the pouch created from the upper part of the stomach and the lower stomach and further restricts the movement of food. Over the course of several visits to the doctor, the band is filled until the optimal restriction has been achieved – neither so loose that hunger is not controlled, nor so tight that food cannot move through the digestive system. The number of adjustments required is an individual experience and cannot be accurately predicted.
As patients lose weight, their bands will need adjustments, or “fills,” to ensure comfort and effectiveness. The gastric band is adjusted by introducing a saline solution into a small access port placed just under the skin. A specialized non-coring needle is used to avoid damage to the port membrane and prevent leakage. There are many port designs (such as high profile and low profile), and they may be placed in varying positions based on the surgeon’s preference, but are always attached (through sutures, staples, or another method) to the muscle wall in and around the diaphragm.
Adjustable gastric bands hold between 4 to 12 cc of saline solution, depending on their design. When the band is inflated with saline solution, it places pressure around the outside of the stomach. This decreases the size of the passage between the pouch created from the upper part of the stomach and the lower stomach and further restricts the movement of food. Over the course of several visits to the doctor, the band is filled until the optimal restriction has been achieved – neither so loose that hunger is not controlled, nor so tight that food cannot move through the digestive system. The number of adjustments required is an individual experience and cannot be accurately predicted.
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