Surgery Results After RNY Gastric Bypass
After bariatric surgery, the amount of weight you lose will depend on
a variety of factors -- your weight before surgery, your willingness and
ability to follow the nutritional programs postoperatively and the activity
level you maintain. Continuing exercise is a major factor in your postoperative
plan. The medical literature reports that the average weight loss is 40
to 75 percent of excess body weight.
Immediately following surgery, most patients lose weight rapidly and
continue to do so until 18 to 24 months after the procedure. Although
some patients may then start to regain some of their lost weight, few
regain it all. Strict adherence to your surgeon's instructions after surgery
will help you maintain your weight loss.
Weight reduction surgery has been reported to improve, or even cure,
many of the comorbid conditions produced or aggravated by obesity, such
as diabetes mellitus.(1) Sugar levels of most obese patients with diabetes
returns to normal after surgery. Nearly all patients whose blood sugar
levels do not return to normal are older or have had diabetes for a long
time. A recent study showed that Type II diabetics treated medically had
a mortality rate three times that of a comparable group who underwent
gastric bypass surgery.(7)
Improvement, and more often, resolution is seen in sleep apnea and obesity
associated hypoventilation.(2, 3) hypertension,(4) and serum lipid abnormalities.(5,
6) Preliminary data show heart function improved by the sustained weight
loss, with decreased ventricular wall thickness and decreased chamber
size. Other benefits seen in some patients after obesity surgery include
improved mobility and stamina. Many patients find themselves in a better
mood, with increased self-esteem, improved interpersonal relationships,
and a much improved quality of life. They are less self-conscious.(8)
They are able to improve social activities, find jobs and participate
in activities formerly inaccessible to them. Contemptuous body image decreases.
Marital satisfaction increases, but usually only if a measure of satisfaction
existed before surgery. If marital problems existed before the surgery,
the improved self-image may lead to divorce after the surgery and the
weight loss it brings.
More long term follow up data will prove what magnitude of weight loss
is necessary to achieve the greatest benefit in terms of longevity. Data
from medical weight reduction studies suggest that a small weight loss
will favorably affect obesity comorbid conditions. Data for patients over
55 years old at the time of surgery, followed for six or more years after
gastric bypass, reflect significant sustained improvement in morbidity(9)
YOU will play the major role in your eventual weight loss. You will need
to make adjustments in your present lifestyle, but the pride and feeling
of accomplishment as you lose weight will be yours.
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