What are the different kinds of weight loss surgery?
Gastric Bypass Diagram
Gastric Bypass Video
During the gastric bypass, also called Roux-Y, the surgeon creates a small stomach pouch of about half and ounce to one ounce in size. Part of the intestines are rerouted to the effect that some of the food calories and nutrients are not absorbed by the body anymore.
The surgery works by:
- decreasing portion size
- decreasing absorption of calories
- changing certain gut hormones so that hunger is reduced.
These effects lead to a fast weight loss in each patient and help in maintaining a long-lasting weight loss. The gastric bypass is a tool in the management of overweight and patients still need to adapt new and better eating and behavior habits.
Like any other surgery, there are certain risks involved and the gastric bypass is not for everyone.
Laparoscopic Gastric Sleeve
This procedure has been around for about 10 years. During the procedure the majority of the stomach is stapled off and removed. The patient will have a long small stomach tube going from the esophagus to the intestines. This works by reducing the portions of food that can be eaten. There is also a change in hormones in the body to the effect that hunger is limited.
The "sleeve" works well initially with patients losing almost as much weight as with the gastric bypass.
One of the big advantages is that there is less mal-absorption with this procedure, meaning there are fewer problems with Vitamins and minerals in the future.
The risks immediately after surgery are comparable to the gastric bypass but long-term risks are not yet known.
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