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ABOUT MORBID OBESITY
Morbid obesity is common in the United States affecting approximately
10 percent of women and at least 5 percent of men. Over 24 million Americans
are morbidly obese. The long-term failure rate of many dietary treatments
in patients with morbid obesity approaches 100 percent. This booklet attempts
to answer common questions about surgery for morbid obesity.
RISKS OF LIVING WITH MORBID OBESITY
Weight loss for patients with morbid obesity is generally recommended
because of the improvement in physical and mental health with weight loss.
There are over 300,000 deaths annually in the USA due to complications
from morbid obesity. Presently, surgical intervention has been shown to
be most successful, and often the only way, that weight loss can be achieved
and maintained.
Morbid obesity is a significant risk to life. It leads to such conditions
as:
- High blood pressure.
- Heart failure and Heart attack.
- Stroke.
- Increased risk for multiple types of cancer, including uterine, breast,
prostate, esophageal, pancreatic, colon, kidney, and gallbladder cancer.
- Diabetes mellitus with all of its complications.
- Sleep apnea syndrome, which can cause sudden death.
- GERD (acid reflux/heart burn), which can lead to esophageal cancer.
- Urinary incontinence.
- Gallbladder disease.
- Arthritis.
- Fatty Liver and Liver Cirrhosis.
- Immune compromise with frequent infections.
- High blood lipids
- Premature death
- Infertility.
Obesity can also affect your social and psychological health.
- Increased risk of depression.
- Less chance of employment.
- Lower quality of life.
SURGERY FOR MORBID OBESITY
Due to the high incidence of failure of non-operative methods of weight
control in the morbidly obese, surgery is considered an acceptable method
of treatment. Gastric operations for treatment of morbid obesity were
introduced in 1967. Gastric restrictive surgery limits oral intake by
closing off the upper part of the stomach using intestinal staples so
ingestion of small quantities of food produces a "feeling of fullness".
The change in the absorption length of small bowel allows fewer calories
to be absorbed. In 1991 a National Institutes of Health consensus development
panel endorsed gastric restrictive surgery as appropriate treatment for
patients with medically severe obesity.
Gastric Bypass - Weight loss has been shown to occur more
rapidly and over a longer period of time with gastric bypass than with
stapled gastroplasty. The reasons for superior weight loss with gastric
bypass stem from the small degree of malabsorption caused by passing nearly
all of the stomach and the first two feet of the small intestine. To date,
weight loss with gastric bypass has been much more consistent than with
other surgical techniques.
Distal Gastric Bypass - This modification of the standard
gastric bypass is available for patients who are "super obese,"
- more than 200 pounds overweight. This operation adds a greater component
of malabsorption to restriction of intake. The stomach-stapling component
of the distal modification is the same as in the standard procedure. The
only difference is the location of the distal connection of the intestine,
which is reconnected much closer to the colon. Adding this additional
malabsorption increases the risk of several nutritional (metabolic) complications.
Minimally Invasive (Laparoscopic) Surgery - Surgeons at
this institution performed gastric bypass using minimally invasive techniques.
This approach uses five or six tiny incisions instead of one large one
to perform the operation. These operations require two skilled, well-trained
surgeons, skilled assistants and many new specialized instruments. Our
program incorporates these new techniques in most patients. The main advantage
of the laparoscopic approach is less pain postoperatively and earlier
discharge. Patients also have a quicker recovery with much less wound
complications. Weight loss is the same, as the intestinal alteration is
the same. Major complication rate is similar between open and laparoscopic
surgery.
Other surgical procedures - Other surgical techniques are
currently being developed. Most of them are presently variations on the
gastric bypass, and at this time do not appear to have a clear advantage.
Others, such as the gastric banding, are not as successful in weight loss,
and therefore are not routinely recommended in this clinic. If you are
interested in other surgical procedures, please ask your surgeon about
them.
WHO CAN HAVE GASTRIC RESTRICTIVE SURGERY
Individuals who weight at least 100 pounds above ideal body weight as
determined by standard life insurance tables or body mass index (BMI)
> 40 kg/m2. Exceptions have been made in patients with coexisting medical
problems who are almost 100 pounds over ideal body weight with a BMI >
35 kg/m2. Click here to calcualte your
BMI.
Individuals who have failed after serious attempts at weight reduction
such as a physician-prescribed diet, behavior modification, counseling
with a dietitian, or enrollment in a group weight reduction program such
as Weight Watchers, Nutri-Systems, or Overeaters Anonymous.
Individuals who fully comprehend the expected results of surgery, and
are motivated to improving their health. Patients must be aware that surgery
will help them to lose weight without going hungry, however, it will fail
if patients continue to eat large quantities of high calorie foods (junk
food).
PREOPERATIVE EVALUATION
All prospective patients considering gastric restrictive surgery at
Easton Hospital undergo separate screening interviews with the operating
surgeon and the nutritionist, each of whom must individually approve the
patient for surgery.
Glandular (endocrine) disorder must be ruled out as the major contributing
factor to morbid obesity. The surgeon will evaluate for these disorders
during the initial visit.
Psychological stability must be determined by pre-operative interviews
and psychological tests given by the psychologist. There must be understanding
of the risks associated with the operation and acknowledgement of the
fact that the operation is not guaranteed to lead to a specified amount
of weight loss in the long term.
In rare cases, other medical problems may make the risk of a major abdominal
operation under general anesthesia too high. Usually, obesity-related medical
problems are considered an indication to perform surgery for morbid obesity.
Reasons not to perform gastric restrictive surgery include the presence
of active peptic ulcer disease or advanced cardiac (heart), pulmonary
(lung) or renal (kidney) disease.
A blood test for H. Pylori (a bacteria which causes ulcers) and ultrasound
of the gallbladder are performed following the screening interviews. The
blood test is performed to rule out unexpected (occult) peptic ulcer disease.
The ultrasound is performed to determine if you have gallstones. If gallstones
are found, we recommend having your gallbladder removed as part of the
gastric restrictive procedure. After the results of these tests are reviewed
and the results of the psychological tests and interview have been analyzed,
admission to the hospital for the operation is scheduled.
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