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Abdominal Pain
Barrett's Esophagus
Capsule Endoscopy
Colorectal Cancer
Constipation
Crohn's Disease
Diarrhea
Diverticular Disease
Food Intolerance
Gallstones
Gastroesophageal Reflux
Gastrointestinal Bleeding
Hemochromatosis
Inflamatory Bowel Disease
Intestinal Gas
Irritable Bowel Syndrome
Liver Disease
Rectal Disease
Ulcer Disease
Ulcerative Colitis
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Inflamatory
Bowel Disease
What
is the difference between ulcerative colitis and Crohn's Disease?
Ulcerative colitis and Crohn's disease are two types of Inflammatory
Bowel Disease (IBD). The large intestine (colon) can be inflamed
in ulcerative colitis, involving the inner lining of the colon,
or by Crohn's disease, which extends the inflammation deeper into
the intestine wall. Crohn's disease can also involve the small intestine
(ileitis), or can involve both the small and large intestine (ileocolitis).
How is IBD different from Irritable Bowel
Syndrome?
IBD is a true inflammation of the intestine which can result in
bleeding, fever, elevation of the white blood cell count, as well
as diarrhea and cramping abdominal pain. The abnormalities in IBD
can be visualized by barium x-ray or colonoscopy. Irritable Bowel
Syndrome (IBS) is a set of symptoms resulting from spasm or abnormal
function of the small and large bowel. The Irritable Bowel Syndrome
is characterized by crampy abdominal pain, diarrhea, and/or constipation,
but is not accompanied by fever, bleeding or an elevated white blood
cell count. Examination by colonoscopy or barium x-ray reveals no
abnormal findings.
What is the cause of IBD?
There is no single explanation for the development of IBD. A prevailing
theory holds that a process, possibly viral, bacterial, or allergic,
initially inflames the small or large intestine and, depending on
genetic predisposition, results in the development of antibodies
which chronically "attack" the intestine, leading to inflammation.
Approximately 10 percent of patients with IBD have a close family
member (parent, sibling, child) with the disease.
Is IBD caused by stress?
Emotional stress due to family, job or social pressures may result
in worsening of the Irritable Bowel Syndrome but there is little
evidence to suggest that stress is a major cause for ulcerative
colitis or Crohn's disease.
How is IBD diagnosed?
Examination of the colon by colonoscopy is commonly performed in
order to determine the presence of ulcerative colitis or Crohn's
colitis and is also helpful in judging the severity and extent of
the disease. The examination requires that your colon be cleansed
with one of several laxative preparations. Sufficient sedation is
given to keep you comfortable during the procedure. A flexible tube
is inserted into the rectum and advanced through the colon. Biopsies
of the bowel lining are usually performed for diagnostic purposes
and color photographs are often obtained so that comparison with
previous or future examinations can be accomplished.
Barium
x-rays of the upper and lower gastrointestinal tracts are also useful
for establishing the diagnosis. The barium is administered by mouth
or rectally and x-rays are obtained in order to determine if the
small intestine or colon are abnormal.
What are the complications of IBD?
Ulcerative colitis may lead to chronic bleeding, diarrhea, and anemia.
Crohn's disease sometimes result in progressive narrowing of the
small intestine leading to increasing crampy abdominal pain and
possibly abscess formation, the accumulation of pus outside the
intestine. Crohn's disease may cause persistent diarrhea and fever
and bleeding.
What medical treatments are available for
IBD?
Various formulations of 5-ASA, a drug which has been used to treat
IBD for over 50 years, are available as oral preparations, suppositories,
and enemas. These are often one of the first drugs used to treat
IBD.
Corticosteroid
therapy, such as prednisone or hydrocortisone, are given when the
5-ASA products are insufficient to control inflammation. These drugs
can be given orally, rectally as suppositories or enemas, or intravenously.
If you do not respond adequately to these programs, drugs which
suppress the body's ability to make antibodies against the disease
(known as anti-immune therapy) are used. Azathioprine and 6-mercaptopurine
(6-MP) are the two most commonly used drugs for anti-immune therapy.
Are there complications from the medical treatments?
Sulfasalazine, the initial 5-ASA product, may cause nausea, indigestion
or headache in about 15 percent of patients. The newer drugs have
fewer side effects. Chronic corticosteroid therapy can lead to fluid
retention and high blood pressure, some rounding of the face and
softening of the bones similar to osteoporosis. These complications
usually prompt attempts to discontinue corticosteroid treatment
as soon as possible. The anti-immune drugs require periodic monitoring
of the blood count since some patients will develop a low white
blood cell count. These drugs, however, are usually well-tolerated,
in many patients.
Is diet management important for patients
with IBD?
Physicians prefer to maintain good nutrition for those diagnosed
with IBD. If you are responding well to medical management you can
often eat a reasonably unrestricted diet. A low-roughage diet is
often suggested for those prone to diarrhea after meals. If you
appear to be milk sensitive (lactose intolerant), you are advised
to either avoid milk products or use milk to which the enzyme lactase
has been added.
How successful is medical therapy?
Early and proper treatment often results in considerable improvement
in your comfort. Most patients with treated IBD are productive and
functioning individuals. A small percentage of those with ulcerative
colitis and a larger percentage of those with Crohn's disease will
eventually require surgery.
What are surgical options for IBD?
Crohn's disease of the small or large intestine can be treated surgically
for complications such as obstruction, abscess, or failure to respond
adequately to treatment. The disease may recur at some time after
the operation.
Ulcerative colitis is cured after the entire colon is removed. This
surgery, in the past, required an ileostomy (the lower small intestine
is brought out to the abdominal wall and an appliance is worn to
collect the output). A recent surgical procedure which avoids the
need for an external appliance has become popular.
Information
Courtesy of
The American College of Gastroenterology
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