Weight loss surgery helps people with extreme obesity to
lose weight. It may be an option if one cannot lose weight through diet and
exercise or has serious health problems caused by obesity. There are many types
of weight-loss surgery, known collectively as bariatric surgery. Bariatric (weight-loss) surgery contributes to weight
loss in two main ways:
· Restriction. Surgery
is used to physically limit the amount of food the stomach can hold, which
limits the number of calories you can eat.
· Malabsorption. Surgery
is used to shorten or bypass part of the small intestine, which reduces the
amount of calories and nutrients the body absorbs.
Four common types of weight-loss
surgery are:
·
Roux-en-Y gastric bypass
·
Laparoscopic adjustable gastric banding
·
Sleeve gastrectomy
·
Duodenal switch with biliopancreatic diversion
ADVANTAGES:
All types have risks and complications, such as
infections, hernias, and blood clots. Gastric bypass and other weight-loss
surgeries are done when diet and exercise haven't worked or when a person has
serious health problems because of weight. Gastric bypass surgery is done to
help lose excess weight and reduce the risk of potentially life-threatening
weight-related health problems, including:
Ø Stroke
WHEN TO OPT FOR SURGERY:
Gastric bypass and other
weight-loss surgeries are typically done only after one has tried to lose
weight by improving diet and exercise habits. In general, gastric bypass and
other weight-loss surgeries could be an option if:
v Your body mass index (BMI) is 40 or higher
(extreme obesity).
v Your BMI is 35 to 39.9 (obesity), and you have a
serious weight-related health problem, such as type 2 diabetes, high blood
pressure or severe sleep apnea. In some cases, you may qualify for certain
types of weight-loss surgery if your BMI is 30 to 34 and you have serious
weight-related health problems.
But gastric bypass isn't for everyone who is severely overweight. One has to
meet certain medical guidelines to qualify for weight-loss surgery after an
extensive screening process to see if you qualify. One must also be willing to
make permanent changes to lead a healthier lifestyle. The candidate may be
required to participate in long-term follow-up plans that include monitoring
nutrition, lifestyle and behavior, and other medical conditions. As with any
major surgery, gastric bypass and other weight-loss surgeries pose potential
health risks, both in the short term and long term.
Risks associated with the surgical procedure can include:
I Excessive bleeding
I Infection
I Adverse reactions to anesthesia
I Blood clots
I Leaks in your gastrointestinal system
I Death (rare)
Once a person qualifies for gastric bypass or other weight-loss surgeries, the
health care team gives instructions on how to prepare for the specific type of
surgery. One may need to have various lab tests and exams before surgery. There
may be restrictions on eating and drinking and which medications one can take.
The person may also be required to start a physical activity program and to
stop any tobacco use. You may also need to prepare by planning ahead for your
recovery after a surgery like arranging for help at home if needed.
After gastric bypass and other types of weight-loss surgery, the patient is
generally not allowed to eat for one to two days so that the stomach and
digestive system can heal. Then, one needs to follow a specific diet for about
12 weeks. The diet begins with liquids only, then progresses to ground-up or
soft foods, and finally to regular foods. There may be many restrictions or
limits on how much and what one can eat and drink. There will be frequent
medical checkups to monitor health in the first several months after
weight-loss surgery. There may be a need for laboratory testing, blood work and
various exams.
One may experience changes as the body reacts to the rapid weight loss in the
first three to six months after gastric bypass or other weight-loss surgery,
including:
¯ Body aches
¯ Dry skin
¯ Hair thinning and hair loss
¯ Mood changes
Gastric bypass and other bariatric surgeries can provide long-term weight loss.
The amount of weight loss depends on the type of surgery and the change in
lifestyle habits. It may be possible to lose half, or even more, of the excess
weight within two years. In addition to weight loss, gastric bypass surgery may
improve or resolve conditions often related to being overweight like
gastroesophageal reflux disease, high blood pressure, sleep apnea, and diabetes.
Gastric bypass surgery can also improve the ability to perform routine daily
activities, which could help improve one's quality of life.
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