|
Crohn's Disease
Crohn's
disease is a chronic, recurrent inflammatory disease of the
intestinal tract. The intestinal tract has four major parts: the
esophagus, or food tube; the stomach, where food is churned and
digested; the long, small bowel, where nutrients, calories, and
vitamins are absorbed; and the colon and rectum, where water is
absorbed and stool is stored. The two primary sites for Crohn's
disease are the ileum, which is the last portion of the small bowel
(ileitis, regional enteritis), and the colon (Crohn's colitis). The
condition begins as small, microscopic nests of inflammation which
persist and smolder. The lining of the bowel can then become
ulcerated and the bowel wall thickened. Eventually, the bowel may
become narrowed or obstructed and surgery would be needed.
What Causes Crohn's Disease?
There is now evidence of a genetic link as Crohn's frequently shows up
in a family group. In addition, there is evidence that the normal
bacteria that grow in the lower gut may, in some manner, act to promote
inflammation. The body's immune system, which protects it against many
different infections, is known to be a factor. There are still a number
of unknowns about the cause of the disease. Fortunately, a great deal is
known about the disease and especially its treatment.
Who
Develops Crohn's Disease?
The condition occurs in both sexes and among all age groups, although
it most frequently begins in young people.
Jewish people are at increased risk of developing Crohn's, while
African Americans are at decreased risk, which indicates the
genetic link in this disease.
Symptoms
The symptoms of Crohn's disease depend on where in the intestinal
tract the disorder appears. When the ileum (ileitis) is
involved, recurrent pain may be experienced in the right lower
abdomen. At times, the pain mimics acute appendicitis. When the colon
is the site, diarrhea (sometimes bloody) may occur, along with
fever and weight loss. Crohn's disease often affects the anal area where
there may be a draining sinus tract called a fistula.
When the disease is active, fatigue and lethargy appear. In children
and adolescents there may be difficulty gaining or maintaining weight.
Diagnosis
There is no one conclusive diagnostic test for Crohn's
disease. The patient's medical history and physical exam are always
helpful. Certain blood and stool tests are performed to arrive at a
diagnosis. X-rays of the small intestine and colon (obtained through
an upper GI series and barium enema) are usually required. In addition,
a visual examination (sigmoidoscopy) of the lining of the rectum and lower
bowel is usually necessary. A more thorough exam of the entire colon
(colonoscopy) is often the best way of diagnosing the problem when
the disease is in the colon.
Course
and Complications
The disorder often remains quiet and easily controlled for long
periods of time. Most people with Crohn's disease continue to pursue
their goals in life, go to school, marry, have a family, and work
with few limitations or inconveniences.
Some problems, outside the bowel, can occur. Arthritis, eye and
skin problems, and -- in rare instances -- chronic liver conditions
may develop. As noted, the disease can occur around the anal canal. Open sores
called fissures can develop, which are often painful. A fistula can
also form. This is a tiny channel that burrows from the rectum to the
skin around the anus. In addition, when inflammation persists in the
ileum or colon, narrowing and partial obstruction may occur.
Surgery is usually required to treat this problem. When Crohn's disease has
been present for many years there is an increased risk of cancer.
Treatment
Effective medical and surgical treatment is available for Crohn's
disease. It is particularly important to maintain good nutrition and
health with a balanced diet, adequate exercise, and a positive,
upbeat attitude. Five types of medications are available to
treat this disease:
Cortisone or Steroids -- These powerful drugs
provide highly effective results. A large dose is often used
initially to bring the disorder under quick control when the
disease is severe. The drug is then
tapered to a low maintenance dose, perhaps taken just every other
day. Hopefully the drug may eventually be stopped altogether. This
medicine is administered by pill or enema. Prednisone is a common
generic name.
Anti-inflammation drugs -- sulfasalazine (Azulfidine),
Dipentum, Asacol, Rowasa, and Pentasa belong to a group of drugs
called the 5-aminosalicylates. These drugs are most useful in
maintaining a remission, once the disease is brought under
control. They are most effective when the disease is present in
the colon. These are available in oral and enema preparations.
Immune System Suppressors -- These medications suppress
the body's immune system, which appears to be overly active and
somehow aggravates the disease. The names of two of
these commonly used medications are azathioprine (trade name:
Imuran) and 6 MP (trade name: Purinethol). These drugs are
particularly useful for long-term care. There are other potent
immune-suppressing drugs that may be used in difficult cases.
Infliximab (trade name: Remicade) -- This drug is the
first of a group of medications that blocks the body's inflammation
response. It is given by intravenous infusion over several hours.
These blocking antibody drugs are proving to be very effective in
many patients with severe disease.
Antibiotics -- Since there is frequently a bacterial
infection along with Crohn's disease, antibiotics are often used
to treat this problem. Two that are commonly used are ciprofloxacin
(trade name: Cipro) and metronidazole (trade name: Flagyl).
Diet and Emotions
There are no foods known to actually injure the bowel. However,
during an acute phase of the disease, bulky foods, milk, and milk
products may increase diarrhea and cramping. Generally, the patient
is advised to eat a well-balanced diet, with adequate protein and
calories. A multivitamin and iron supplement may be recommended by
the physician.
Stress, anxiety, and extreme emotions may aggravate symptoms of
the disorder, but are not believed to cause it or make it worse. Any
chronic disease can produce a serious emotional reaction, which can
usually be handled through discussion with the physician.
Surgery
Surgery is commonly needed at some time during the course of Crohn's
disease. It may involve removing a portion of diseased bowel, or
simply the draining of an abscess or fistula. In all cases, the
guiding principle is to perform the least amount of surgery necessary to
correct the problem. Surgery does not cure Crohn's disease.
Summary
Most people with Crohn's disease lead active lives with few
restrictions. Although there is no known cure for the disorder, it
can be managed with present treatments. For a few patients, the
course of the disease can be more difficult and complicated,
requiring extensive testing and therapy. Surgery sometimes is
required. In all cases, follow-up care is essential to treat the
disease and prevent or deal with complications that may arise.
Related Diets
Fiber
Restricted | Low
Fat/Diarrhea/Gallbladder
Related Procedures
Colonoscopy
This material does not cover all information and is
not intended as a subsitute for professional care. Please consult
with your physician on any matters regarding your health.
©
Copyright
Chek Med Systems®, Inc., All Rights Reserved.
|