Selasa, 26 April 2011

Stomach 'Pacemaker' could be new weight-loss tool? (HealthDay)

Thursday, April 7 HealthDay News)-Silke Zeigler was with "Yo-yo" in their struggle to maintain a healthy body weight diets fed up.

"The first realization was that diets did work not and actually the things even worse, as I after the diet the weight that I would lost back on," said Zeigler, 26, a taxi driver from the Würzburg Germany region. "So, I explored surgical options such as gastric bypass surgery or lap band." "But I was not overweight enough ironically, for these operations."

Then offered her a chance to participate in a study of an innovative stomach "Pacemaker" to curb appetite the University Hospital of Würzburg and weight control.

Zeigler embraced the idea, largely due to the reversibility of the treatment. "In other words, it can be removed again and again without lasting repercussions on the anatomy of my stomach, such as [is] in a gastric bypass surgery," noted Zeigler.

Ten months after receipt of the implantable device, what she said Zeigler a "simple" operation, it has lost about 80 pounds and led it. "I quickly noticed success, because in the first few weeks that I lost 20 kilos [44 pounds] and my motivation increases fading with each kilo," she said.

The device still not approved is based manufacturer, IntraPace "Abiliti" of his California for use in the United States. According to the company, the device in the stomach is implanted during a one-hour laparoscopic procedure of small insertions in the abdominal wall.

Available the device used their food detection sensor sense, or drinks once when a patient eats. This causes low energy electrical impulses to nerves issue there, cause the quick satiety.

According to IntraPace users can feel "a sensation" of the small pulses, the device provides. Zeigler said that in her case, "the feeling of fullness occurs much earlier now than before."

A sensor also tracks the eating activity and levels of patients, send physical effort information automatically on a computer, so that patients and doctors can easily monitor (and customize) eating and exercise habits.

"This is not the patients of the police, but help promote positive results," explains Chuck Brynelson, IntraPace's CEO.

To this day a complete trial, together with a second in the Gange--both funded IntraPace--the instrument, a total of 65 patients tested. Both studies have to the assessment was the device safety and effectiveness, rather than a comparison with other weight loss methods or medications.

The results of the first study were presented at the 2009 International Federation for the surgery of obesity and metabolic disorders meeting. In this study, study author Thomas HORBACH, of Schwabach, Germany, obese individuals with the initial pre-implant body mass index (BMI) between 35 and 55 (30 is the statistical threshold for obesity) recruited.

Lowered upon receipt of the device, the participants their daily food intake in an average of 45 percent, said the researchers and they lost 22 percent of overweight on average within one year after implantation.

IntraPace acknowledges that standard gastric bypass surgery at present still more dramatic Ergebnisse--usually a 50 to 60 percent loss of overweight is produced within a year. Another type of bariatric surgery, gastric reached postoperative banding between 34 percent and 38 percent weight loss during the first year.

However the company out there that come the more invasive bypass and banding operations with more risks: 0.5 to 0.05 percent of such patients die, or; while 23 to 32 percent of the patients and 88 to 93 percent of the gastric band bypass recipients you will experience significant side effects. So far, said called the pacemaker operation, no loss and no major side effects in those that you have received, IntraPace.

But some US weight loss experts remain less than enthusiastic about the device.

Dr. Mitchell Roslin, Chief of bariatric surgery at the Northern Westchester hospital in Mount Kisco, New York, said that he "very bearish view" of gastric pacemaker technology, will close as the effect of "a glorified placebo."

"Not so just switch on the type of sophisticated communication that goes on between the stomach, the nerves and the brain like a light switch is," he said. "It is not just about the nerves on pulse and hope that, that imitates the manner of the stomach signals brain." But the simple state of obesity pacemaker technology today is that all what we can do at the moment until the voltage or drop the voltage. "And my opinion, this is simply not good enough."

Other experts, registered dietician and Assistant Professor of clinical nutrition Lona Sandon, the University of Texas Southwestern Dallas, said it remains to be seen whether stomach could have pacemakers to play an important role in weight loss.

"Of course, it could another tool in the field to help, the problem of obesity," she said. "Of course the studies to play and see, what are the risks." "But it seems that it is much less invasive and has the potential for less surgical exposures on bariatric surgery, the a pretty serious operation, which can cause many complications."

It is to determine costs: according to Brynelson, Abiliti now, cost between $20,000 and $23,000, includes the device and implantation in the stomach. It is based on costs in the UK, where the device for use recently was released.

Brynelson said that discussions between Intrapace and the U.S. Administration in progress are food and drug, to outline the parameters of the new studies carried out before the device for American patients could be approved. In the most optimistic scenario, which would happen not before 2014, he said.

Sandon stresses that intervention of weight loss ideally should include lifestyle changes. She said "With one of these devices, with which you could less food, you still need to be careful what you in the mouth and make healthy food choices and physical activity for the promotion of health as a whole to increase". "Operation replaced not good nutrition." Any kind of implantable devices. "Habits are still key for overall health long term."

Abiliti receiver Zeigler said she could no longer with this Council agree.

"[My weight loss] is also due to a change of eating and living habits," said she, inclined towards salads and grains, that since the operation they "a strong desire and will to lose weight" with an avoiding fast food and a diet.

More information

More standard-weight loss surgery options, visit the US national institutes of health.

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