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An innovative stomach pump device called AspireAssist makes it possible to have your stomach pumped out after every meal. Eat all you want, dump your meal in the toilet, and eat some more. But is it safe?

People who suffer from obesity will go to astonishing lengths to have their cake and eat it, too. The latest innovation in surgically assisted weight loss is the AspireAssist Aspiration Therapy System.

This reversible and non-invasive medical device enables the user to pump out their stomach contents through a "second anus" surgically implanted into the abdomen.

This surgical orifice enables patients to simply dispose of undigested food into the toilet. If you use the device, then it is possible to get stuffed to the gills all over again.

The AspireAssist device sounds like medically induced bulimia (the finger-down-your-throat obsessive compulsive disorder that enables some people to lose weight in a similar manner), but initial reports are that it actually works — with this device, obese patients lose more weight than their peers who received counseling and went on a diet. Some even lose as much as 100 in the year after they have the device installed.

What Is the AspireAssist?

The AspireAssist device was invented by two gastroenterologists, Dr. Moshe Shike and Dr. Sam Klein, who worked with an interventional radiologist named Dr. Stephen Solomon. The AspireAssist device is designed to help its users aspirate, or empty, their stomachs after a meal, pumping out recently eaten food so that it can be flushed away before the body has an opportunity to absorb nutrients, leading to further weight gain.

The AspireAssist device only removes about 30 percent of the food present in the stomach at any given time (although this depends on the user's having enough experience with the device and presence of mind to stop pumping the stomach soon enough), allowing the other 70 percent to be digested and pass to the small intestine.

The AspireAssist device consists of a flexible silicone rubber tube called the A-tube. This conduit is surgically placed in the stomach. This tube directly connects the inside of the stomach to an opening about the size of a US quarter on the outside of the abdomen, similar to an ostomy. The A-Tube can easily be opened or closed with a "Skin-Port" that the patient uses to control the flow off food.

How Do Dieters Use the AspireAssist?

Dieters eat their regular meals, and then wait 20 to 30 minutes for the chewed food to reach the stomach. Then in the privacy of a bathroom, they can open the Skin-Port to drain food directly into the toilet. The process takes 5 to 10 minutes. Dieters have to use the device three times a day, within half an hour after eating meals, for the early stages of weight loss. After the user has begun to lose a significant amount of weight, the device might be used just once or twice a day

The AspireAssist isn't meant to be an alterative to embracing a healthy diet and lifestyle, as such, but it can help obese people gradually get used to eating healthier and less food while ensuring that the harmful impact of inevitable binges is significantly reduced.

Does AspireAssist Really Work?

The makers of the AspireAssist device inittially stated that they tested the system on 24 American patients for 12 months. All of the patients enrolled in the clinical trial were obese, with BMI's between 36 and 45.  The average weight loss among users of the device was 20 kilos (about 45 pounds), with some dieters losing as many as 45 kilos (about 100 pounds) in their first year. The fastest weight loss occurred during the first four months after it was installed, with almost all weight loss in the first six months of using the device. For most users, slow but steady weight loss occurred over the next six months.

Is AspireAssist Safe?

To the casual observer, AspireAssist therapy may sound a lot like surgically enabled bulimia, the compulsive practice of losing weight by inducing vomiting after a meal by sticking a finger down the throat. It might even remind some sci-fi fans of that drink people in the Hunger Games' capital used to be able to keep on eating after they were already full.

Promoters of the AspireAssist, however, emphasize that the aspiration technique is safer than more common forms of bariatric surgery such as the gastric bypass or lap band surgery. With these methods, obese people who continue to overeat are at serious risk. In addition, the device has been approved by the FDA under certain conditions.

The primary advantage of AspireAssist over other forms bariatric surgery is that it does not reduce the size of the stomach, so it leaves the stomach capable of absorbing vitamin B12 and also of generating hormones such as the endorphins, serotonin, and cholecystokinin, which help control appetite. Also, since the stomach retains its normal size, it is not necessary to eat tiny meals like those required after gastric bypass or lap band surgery.

This makes vomiting and nausea far less of a problem, but AspireAssist is not entirely without risk. Here are the most important safety considerations for using AspireAssist:

  • A number of studies suggest that bulimia (a common practice that has the same result as aspiration therapy) is closely correlated to problems with "executive function," the ability to make sound life decisions. Screening recipients of the device for bulimia before surgery would seem to be necessary, but is not mentioned by the promoters of the device.
  • The lining of the stomach makes the hormone ghrelin, which helps regulate appetite. The effects of creating a wound in the lining of the stomach on the production of ghrelin are not known.
  • The liquid contents of the stomach are easier to the aspirate than solid contents of the stomach. As a result, users of the AspireAssist device are at greater risk for dehydration after their surgeries. Since dehydration presents few early warning signs, users of the aspiration method of weight loss must take care to get enough fluids every day.
  • Aspiration therapy can deplete electrolytes, especially potassium. Most users of the device are advised to take potassium supplements.
  • The stomach releases acid in response to the amount of food eaten. When food is siphoned off and flushed down the toilet, there may be too much acid in the stomach for the amount of food remaining. That acid can leak up the throat and cause heartburn. Most doctors put their AspireAssist patients on a kind of medication known as a proton pump inhibitor, but this medication interferes with the ability of the stomach to liberate calcium, magnesium, and vitamin B12 from food.
  • The Skin-Port where the silicone tube meets the surface of the body is prone to infection. The site has to be kept clean and dry, and users of the device may not be able to go swimming, use a hot tub, or take tub baths.

The makers of the AspireAssist are a little vague in their explanations of how the user of the device would know how to quit the procedure when 30% of stomach contents have been flushed down the toilet. Also, it is easy, if a little disgusting, to imagine situations in which splash from the toilet could result in serious infections of the stomach. These concerns are not addressed by the manufacturer's website or in the medical literature.

The AspireAssist tube can be removed at any time by a simple surgical procedure that only takes 15 minutes and that can be performed on an out-patient basis. For lifestyle considerations (the ability to go swimming, for example) or to prevent infections, many users will opt for removal when they have reached their goal weight.

To maintain goal weight after the device has been removed, requires dieting. And since the reason for using the device is to lose weight without dieting, AspireAssist patients may find themselves quickly gaining all their weight back if they do not learn new eating habits while they lose weight.

Sources & Links

  • Billingsley-Marshall RL, Basso MR, Lund BC, Hernandez ER, Johnson CL, Drevets WC, McKee PA, Yates WR. Executive function in eating disorders: The role of state anxiety. Int J Eat Disord. 2013 Jan 28. doi: 10.1002/eat.22086. [Epub ahead of print]
  • Yagi T, Ueda H, Amitani H, Asakawa A, Miyawaki S, Inui A. The role of ghrelin, salivary secretions, and dental care in eating disorders.Nutrients. 2012 Aug
  • 4(8):967-89. Epub 2012 Aug 13.
  • Photos courtesy of www.aspirebariatrics.com

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