Gastric Bypass Surgery Updates

Do you ever feel like you know just enough about gastric bypass surgery to be dangerous? Let’s see if we can fill in some of the gaps with the latest info from morbid obesity surgery experts.

Gastric bypass operations are more extensive than gastric lapbanding operations. There are several varieties of bypass, but all involve the creation of a small stomach pouch to restrict food intake and construction of bypasses of the duodenum and other segments of the small intestine to cause malabsorption (decreased ability to absorb calories and nutrients from food). Gastric bypass is a tried and tested procedure which a much longer proven history than gastric banding. It is performed by surgeons all over the world, many of who see this is their favourite obesity procedure. Gastric bypass appears to have a very modest net cost per QALY gained compared to vertical banded gastroplasty (742/QALY). In contrast, silicone adjustable gastric banding has a large net cost per QALY gained compared to gastric bypass (256,856/QALY).

Gastric bypass surgery is the procedure used to make your stomach smaller than the usual. A person eats and food passes through the digestive system. Gastric bypass operations are usually performed using keyhole surgery but sometimes it is necessary to perform a standard operation instead. A gastric bypass is a more major operation and you can expect to stay in hospital two nights and be off work for around four weeks afterwards. Gastric bypass achieves superior weight loss compared with gastric banding (70-80% vs 50-60% EWL) and with much greater reliability and predictability. Gastric banding is associated with a range of technical mishaps, which remain a potential long-term threat to patients.

Now that we’ve covered those aspects of morbid obesity surgery, let’s turn to some of the other factors that need to be considered.

Surgeons have developed several different ways to reconnect the intestine, thus leading to several different GBP names. Any GBP leads to a marked reduction in the functional volume of the stomach, accompanied by an altered physiological and psychological response to food. Surgeons have developed several different ways to reconnect the intestine, thus leading to several different GBP names. Any GBP leads to a marked reduction in the functional volume of the stomach, accompanied by an altered physiological and psychological response to food.

Surgeons use major procedures to reroute the intestines including the Roux-en-Y gastric bypass (RGB), currently the most common procedure used in U.S. Some surgeons reduce possible risk by performing laparoscopic surgery, a technique which passes slender, surgical instruments through one or more small incisions. Surgeons have developed several different ways to reconnect the intestine, thus leading to several different GBP names. Any GBP leads to a marked reduction in the functional volume of the stomach, accompanied by an altered physiological and psychological response to food.

Weight loss is not guaranteed. Generally, the malabsorptive procedures seem to produce greater weight loss but carry higher risks. Weight loss however is not maintained in the long term. VBG and LGB are short term interventions. Weight loss surgery of any type is not a quick fix. Living with either a gastric bypass or a gastric band 24/7 is hard work and brings personal challenges and change.

Is there really any information about bypass gastric morbid obesity surgery that is non-essential? We all see things from different angles, so something relatively insignificant to one may be crucial to another.

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