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Cirrhosis
The
liver is a large organ that sits in the right upper abdomen, just
under the right lung. It is one of the body's most "intelligent"
organs in that it performs so many different functions at the same
time. The liver makes proteins, eliminates waste material from the
body, produces cholesterol, stores and releases glucose energy and
metabolizes many drugs used in medicine. It also produces bile that
flows through bile ducts into the intestine where it helps to digest
food. This remarkable organ also has the ability to regenerate itself
if it is injured or partially removed. The liver receives blood from
two different sources -- the heart and the intestine. All of this
blood flows through the liver and returns to the heart. It is no
wonder that the ancient Chinese viewed the liver, not the heart, as
the center of the body.
What Is Cirrhosis?
Many types of chronic injury to the liver can result in scar tissue.
This scarring distorts the normal structure and regrowth of liver
cells. The flow of blood through the liver from the intestine is
blocked and the work done by the liver, such as processing drugs or
producing proteins, is hindered.
What Causes Cirrhosis?
Cirrhosis can be caused by many things, some known and others
unknown:
Alcohol -- Using alcohol in excess is the most
common cause of cirrhosis in the United States.
Chronic Viral Hepatitis -- Type B and Type C hepatitis,
and perhaps other viruses, can infect and damage the liver over a
prolonged time and eventually cause cirrhosis.
Chronic Bile Duct Blockage -- This condition can occur
at birth (biliary atresia) or develop later in life (primary
biliary cirrhosis). The cause of the latter remains unknown. When
the bile ducts outside the liver become narrowed and blocked, the
condition is called primary sclerosing cholangitis. This condition
is often associated with chronic ulceration of the colon
(colitis).
Abnormal Storage of Copper (Wilson's Disease) or Iron
(Hemochromatosis) -- These metals are present in all body
cells. When abnormal amounts of them accumulate in the liver,
scarring and cirrhosis may develop.
Drugs and Toxins -- Prolonged exposure to certain
chemicals or drugs can scar the liver.
Autoimmune Hepatitis -- This chronic inflammation occurs
when the body's protective antibodies fail to recognize the liver
as its own tissue. The antibodies injure the liver cells as though
they were a foreign protein or bacteria.
Cystic Fibrosis and Alpha l-antitrypsin Deficiency --
These disorders are inherited.
What Are the Signs and Symptoms?
Cirrhosis takes years to develop. During this time, there are usually
no symptoms, although fatigue, weakness and decreased appetite may
occur and worsen with time. When cirrhosis is fully developed, a
number of signs may be present:
Fluid retention in the legs and abdomen -- The
liver produces a protein, called albumin, that holds fluid in
blood vessels. When the blood level of albumen falls, fluid seeps
out of the tissues into the legs and abdomen, causing edema (fluid
accumulation) and swelling.
Jaundice -- The liver produces bile that normally flows
into the intestine.With advanced cirrhosis, bile can back up into
the blood, causing the skin and eyes to turn yellow and the urine
to darken.
Intense Itching -- Certain types of cirrhosis, such as
chronic bile duct blockage, can produce troublesome itching.
Gallstones -- Cirrhosis causes the abnormal metabolism
of bile pigment. Because of this, gallstones develop twice as
often in cirrhosis patients as in those without the disorder.
Coagulation Defects -- The liver makes certain proteins
that help clot blood. When these proteins are deficient, excessive
or prolonged bleeding happens.
Mental Function Change -- The liver processes toxins
from the intestine. When these substances escape into the
bloodstream, as occurs in severe cases of cirrhosis, a variety of
changes in mental function can develop.
Esophageal Vein Bleeding -- In advanced cirrhosis,
intestinal blood bypasses the liver and flows up and around the
esophagus (the food tube) to the heart. The veins in the esophagus
dilate (widen) and may rupture, causing slow or massive intestinal
bleeding.
Diagnosis
and Liver Biopsy
The physician can always suspect cirrhosis from the patient's medical
history and physical examination. In addition, certain blood tests
and scans or ultrasound (sonography) can provide helpful information.
To make a definite diagnosis, however, a liver biopsy (tissue sample)
is required. This is performed by anesthetizing the skin of the
right-lower chest and inserting a thin, needle into the liver. A core
or specimen of tissue is removed and examined under a microscope.
What Is the Course of Cirrhosis?
When cirrhosis is diagnosed, the patient and physician begin a plan
of action designed to preserve the remaining liver cells and correct
the complications mentioned above. By following this plan, most
patients can lead long, productive lives.
Prevention
Perhaps 90 percent of cirrhosis is caused by excessive alcohol
consumption or hepatitis viruses. Of course, alcohol can be avoided.
Alcohol consumption should always be limited to no more than 1 or 2
drinks per day. And type B hepatitis now has an effective vaccine
against it. Vaccination against B hepatitis virus is safe and
inexpensive. It should be taken especially by certain high-risk
groups: all health care professionals, persons traveling to third
world countries, homosexuals, intravenous drug users, and
prostitutes.
Treatment
Often, the only required treatment for cirrhosis is removing the
offending cause:
- The alcoholic patient must permanently stop consuming
alcohol.
- When iron is being retained in the body, chronic removal of
blood by vein eliminates large amounts of iron.
- Cortisone medicine helps treat autoimmune hepatitis and
cirrhosis.
- Restricting salt and using fluid pills (diuretics ) reduce
edema and abdominal swelling.
- Toxins and injurious drugs must be avoided.
- Decreasing dietary protein and using certain laxatives
generally can prevent changes in mental function.
- Bleeding veins in the esophagus can be injected with
sclerosing (clotting) agents or closed with small rubber bands.
Occasionally, surgery is necessary to prevent recurrent massive
bleeding.
- Ursodiol (Actigall) and other drugs have been helpful in
treating primary biliary cirrhosis and primary sclerosing
cholangitis.
Liver Transplant
Liver transplantation has progressed to the stage where it can now be
considered as standard treatment for selected patients.
Summary
Cirrhosis of the liver is a common disorder that has many causes.
With early diagnosis, much can be done to prevent serious
complications. Various treatments are available, depending on the
cause of the liver injury and its complications. Ongoing medical
research promises major advances in treating cirrhosis in the future.
Related Diseases
Autoimmune
Hepatitis | Hepatitis
B | Hepatitis
C | Primary
Biliary Cirrhosis | Primary
Sclerosing Cholangitis | Fatty
Liver | Gallstones
| Hemorrhoids
Related Diets
Copper
Restriction (Wilsons Disease) |
Sodium
RestrictionLow
Protein | Low
Cholesterol | Osteoporosis
| Vegetarian
Related Procedures
Liver
Biopsy | Liver
Transplant | Upper
GI Endoscopy (EGD)
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.
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Copyright
Chek Med Systems®, Inc., All Rights Reserved.
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