Answer Provided by Lloyd Stegemann, MD, FASMBS
Throughout the last decade, America’s obesity epidemic has continued to get worse. Recent U.S. data shows nearly 40 percent of Americans have severe obesity, with even higher rates in women and minorities. Along with this weight, significant medical problems arise such as high blood pressure, diabetes, sleep apnea, heart disease and several types of cancer.
For those with severe forms of obesity (BMI >40), bariatric surgery has been shown to be the most reliable method for achieving long-term weight-loss and improvement in weight-related medical problems. Throughout the past 10 years, the risk of having these procedures has continued to decrease due to improvements in care before, during and after surgery. Today, the average risk patient having a bariatric operation is at no greater risk than if they were having their gallbladder removed! For these reasons, more and more individuals with obesity are looking to bariatric surgery as a treatment option.
To save you time and possible disappointment, there are a number of considerations and some legwork that should be done before you make an appointment with a bariatric surgery program. Here are a few things to consider:
Once you have answered these questions, it’s time to look for a bariatric surgery center in your area. The easiest way to do this is to visit the American Society for Metabolic and Bariatric Surgery (ASMBS) website at ASMBS.com and use the “Find a Provider” feature. After entering your zip code, you will see all of the bariatric surgeons in your area along with their contact information.
Once you get this information, I would encourage you to do the following:
Here are the most common bariatric operations and the percentage they make up of the total bariatric operations performed in 2016:
Most patients “know” which surgery they want to have when they come to their first appointment. This is usually based on the fact that they have a friend, colleague or family member who has had success with a particular bariatric procedure. Other times, they’ve heard “bad things” about another procedure.
It’s important to keep an open mind when considering the different options available to you, because there is a lot of misinformation out there that can sway you toward an operation which might not be in your best interest. There is no “right” operation for everybody. All of the available bariatric operations are effective, but there are certainly differences between them.
Here are some things that should be considered when choosing the “right” procedure for you:
While every operation has risk of complication and the possibility of death, some operations carry more risk than others. For bariatric surgery, the risk of complication and death in the first 30 days after surgery from least risky to riskiest is:
The risk of complication or death often depends on a number of factors, including the medical condition of the patient prior to surgery and surgeon experience with different procedures. When you meet with your surgeon, they can give you a better idea of your individual risk.
Each of the bariatric operations has a different amount of total body weight that a patient can expect to lose within 12-18 months after surgery.
It’s important to keep in mind that these are averages, so some patients will lose more and some will lose less than the predicted amount. In my experience, gastric bypass and duodenal switch patients almost always lose the predicted amount of weight – but sleeve and band patient results are much less predictable. This is likely because gastric bypass and duodenal switch operations create a stronger “metabolic effect” in the body when compared to the sleeve gastrectomy and band. If a patient would like to lose more weight than the amount predicted with their chosen procedure, they should strongly consider medical weight management before bariatric surgery.
While follow-up is important for success after every bariatric surgery, it’s especially true for the band and duodenal switch. If the band is not adjusted on a regular basis during the first two years after surgery, the patient will see minimal success. This means the patient will need to come in for regular visits (usually monthly for the first year). If the patient lives a long distance from the center, has difficulty getting time off work, can’t afford copays or their band fills, then the band is very unlikely to produce the results they are looking to achieve.
Of the stapled procedures (sleeve, bypass, duodenal switch), the duodenal switch patient has the greatest chance of developing life-altering vitamin and mineral deficiencies or malnutrition. Therefore, they need their labs checked regularly – especially during the first year after surgery.
To be successful after surgery, patients must work on changing their eating habits. This means focusing more on proteins and vegetables and less on carbohydrates, sweets and liquid calories.
All bariatric operations help reduce hunger and improve portion control. With the gastric bypass and duodenal switch, the operation also helps reinforce healthier eating habits by creating negative effects (nausea, abdominal pain or diarrhea) when the patient eats too much sugar or fat. This negative feedback often helps patients adapt to a healthier diet if they’ve previously struggled controlling their sweet and fat intake.
The gastric bypass operation also seems to decrease sweet cravings more than other operations. Duodenal switch patients will often have five to seven watery bowel movements a day in the early months after surgery, but this will ultimately shift to four to five formed bowel movements. This does not occur with the band, sleeve or gastric bypass.
There are certain medical conditions that, when present, would favor one operation over another. A full discussion of this topic is out of the scope of this article, but examples include diabetes, hiatal hernia, gastroesophageal reflux disease (GERD), Crohn’s Disease, kidney failure, smoking, arthritis, steroid dependence and multiple abdominal operations.
While every bariatric operation should be considered “permanent” and there are very few reasons why one would be reversed, it is possible to take out a band and reverse a gastric bypass (put the pieces back together).
Because a large portion of the stomach is removed with a gastric sleeve and a duodenal switch, it is not possible to reverse these operations. On the other hand, if a band patient or a sleeve patient doesn’t achieve the desired weight-loss and improvement in weight-related medical problems, these operations can be revised to a different bariatric operation. It would be quite unusual to see a gastric bypass or duodenal switch patient revised to a different bariatric operation.
Bariatric surgery is a safe, effective way to achieve sustained weight-loss, improvement in weight-related medical problems and improved quality of life. However, there is no way to predict with any certainty what the “right” bariatric operation for any particular patient is. Doing your homework before seeing your surgeon and choosing the operation that best fits your weight-loss goals, risk tolerance and lifestyle will guarantee you get the “right” bariatric operation for you.
About the Author:
Lloyd Stegemann, MD, FASMBS, is a bariatric surgeon in Corpus Christi, Texas. Dr. Stegemann is a passionate advocate for universal access to bariatric surgery and is a former National Board Member of the OAC.
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