MONDAY, Jan. 16 (HealthDay News) -- Gastric bypass surgery results in faster and longer-lasting weight loss than does gastric banding, according to a new study by Swiss investigators.
A gastric bypass operation called Roux-en-Y involves reducing stomach size with staples and connecting the smaller "pouch" directly to the small intestine. It is irreversible.
Gastric banding, as its name implies, involves placing a band around part of the stomach to reduce its size. This procedure is reversible, the researchers noted.
"Both gastric banding and gastric bypass are currently performed for morbid obesity," said lead researcher Dr. Michel Suter, chief surgeon at Chablais Hospital in Aigle.
"Bypass is more effective in terms of directs results such as weight loss, but a bit more dangerous immediately than banding," he said.
However, banding often leads to long-term complications requiring some sort of major re-operation, Suter said.
"In addition, many bands are not going to stay in place for much more than 10 years; hence, banding is unlikely to be the only weight-loss procedure the patient will be submitted to," he said. "Patients should make a choice knowing this, and decide whether they accept a slightly higher early risk to improve their results, or if they want the least invasive procedure, but then accept a high risk of further surgery at a later time."
The report was published in the Jan. 16 online edition of the Archives of Surgery.
For the study, Suter's team followed for six years 442 patients who had either gastric bypass surgery or banding.
Although there were more early surgical complications among those who had Roux-en-Y surgery, these patients lost more weight faster than those who had gastric banding, the researchers found.
After bypass surgery, about 17 percent of the patients had complications, compared with more t
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