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Hepatitis
& Cirrhosis Information
Hepatitis C Information
Hepatitis B Information
Hepatitis A Information
Cirrhosis Information
Hepatitis
C
Hepatitis
C is a serious contagious disease of the liver that is caused
by the hepatitis C virus (HCV). Hepatitis C and its implications
were identified only recently. There still is much to learn about
the disease, the virus that causes it, and the treatment options,
both conventional and alternative. What many people do not realize
is that there is a relationship between hepatitis C and the HIV
epidemic.
About
three million Americans are infected with HIV, the human immune
virus, and many of them do not even know they have it. Other forms
of viral hepatitis usually resolve without treatment. But 85 percent
of the people with HIV develop long-lasting hepatitis C. Most
people infected with HCV show no symptoms for up to 20 to 30 years.
During that time, though, the infection may be slowly damaging
the person's liver.
The
effects of hepatitis C can be debilitating. They can include:
sudden hearing loss; anemia and other forms of low-blood-cell
counts; headaches; heart, eye, liver or kidney problems; and disorders
of the mind, including depression.
The
virus can be found in a number of organs of the body. The infection
is spread mainly by contact with the blood of an infected person.
Once a person is infected, the body's disease-fighting immune
system cannot combat the virus very well.
Most
people with chronic hepatitis C develop long-term liver disease,
which interferes with the liver's ability to work properly. Some
patients eventually develop cirrhosis -- a scarring of the liver;
some get liver cancer; and some even die from liver disease.
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Hepatitis
B
The
hepatitis B virus is spread from one person to another through
body fluids, including blood, semen, and vaginal fluids (including
menstrual blood). The virus can be passed from a mother to her
newborn baby during delivery (perinatal transmission). However,
most people in the United States acquire HBV infection as adolescents
or adults.
Short-term
(acute) infection usually goes away on its own without treatment.
Some people have no symptoms. Most people who develop symptoms
feel better in 2 to 3 weeks and recover completely after 4 to
8 weeks. Other people may take longer to recover. Long-term (chronic)
infection occurs when the hepatitis B virus continues to be present
in a person's liver and blood for 6 months or more. Chronic infection
can lead to serious liver diseases such as cirrhosis and liver
cancer.
Chronic
infection develops in up to 90% of children infected at birth,
in 30% of children infected between the ages of 1 and 5, and in
about 6% of those infected after age 5.
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Hepatitis
A
Hepatitis
A is a liver disease caused by the hepatitis A virus (HAV). It
is one of the most widely reported diseases that is preventable
by a vaccine. Other viruses can cause hepatitis, most commonly
the hepatitis B and C viruses. However, hepatitis has many causes,
including certain medications, long-term alcohol use, and exposure
to certain industrial chemicals. Viral hepatitis can be spread
from one person to another, but the other types of hepatitis cannot.
The
Hepatitis A virus is spread mainly by oral contact with stool
containing the virus. If contaminated stool gets into the water
or food supply, the virus may infect anyone who drinks the water
or eats the food. This is how most people around the world become
infected with hepatitis A.
In
the United States, most people become infected through contact
with a household member who has the virus (such as when changing
a diaper) or a sex partner who is infected. Sometimes large groups
of people become infected after eating in a restaurant. This usually
happens when an employee with the virus prepares food after not
washing his or her hands well after using the bathroom. Outbreaks
may also occur in day care centers and other facilities which
involve close contact.
In
rare cases, hepatitis A can be spread through sexual contact or
contact with blood from a person who has the virus circulating
in his or her bloodstream. The virus is present in the blood before
symptoms appear. Transmission through blood transfusions, while
possible, seldom occurs.
People
infected with hepatitis A may develop symptoms of fatigue, fever,
muscle soreness, headaches, nausea, and/or jaundice. Symptoms
usually last about 2 weeks. You can spread the virus to other
people for at least 2 weeks before symptoms develop.
HAV
infection does not cause long-term illness or chronic liver damage.
More than 99% of people recover. However, in very rare cases a
severe, rapidly progressing liver infection called fulminant hepatitis
can occur. This may lead to an urgent need for liver transplantation.
Fulminant hepatitis causes death in some people.
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Cirrhosis
Cirrhosis
is a potentially life-threatening condition that occurs when scarring
damages the liver. This scarring (also called fibrosis) replaces
healthy tissue and prevents the liver from working normally. Cirrhosis
usually develops after years of liver inflammation.
The
major causes of cirrhosis are usually from drinking excessive
amounts of alcohol over many years or having certain forms of
viral hepatitis (mainly hepatitis B or C). There are several other
causes of cirrhosis that are less common such as Primary bilary
cirrhosis, Autoimmune hepatitis, inherited diseases (i.e. - Wilson's
disease, cystic fibrosis, or hemochromatosis). Other less common
causes of cirrhosis may include severe reactions to prescribed
medications, prolonged exposure to poisons in the environment,
having a condition called alpha1-antitrypsin deficiency (rare),
having a condition where too much fat is stored in the liver (nonalcoholic
steatohepatitis - NASH for short), or having a long-term biliary
tract disease (such as sclerosing cholangitis). NASH is increasingly
common and may be the underlying cause of many cases of cirrhosis
for which the cause is unknown.
As
cirrhosis develops, scar tissue surrounds normal liver cells,
making the tissue bumpy, or nodular. This nodular liver tissue
can block the bile ducts or make them swollen, which can cause
bile to back up in the liver and bloodstream.
Scar
tissue also may block blood flow through the liver. Obstruction
of blood flow can cause the veins that bring blood to the liver
to become larger and may lead to high blood pressure in the veins
that flow from the intestines to the liver (portal hypertension).
A
person may not have symptoms early in the course of cirrhosis.
In many cases, symptoms develop only after the disease progresses.
Once scar tissue forms in the liver, it cannot be repaired. Treatment
includes avoiding substances that may further damage the liver
and treating any symptoms and complications. Liver transplantation
may be considered once symptoms progress. Symptoms may include
fluid buildup in the legs, fatigue, yellowing in the skin, itching,
profuse nosebleeds, redness of the palms, and abdominal pain.
People
who have cirrhosis may be at increased risk for developing gallstones.
The more severe the liver disease, the higher risk a person has
of developing gallstones. Cirrhosis also increases risk of developing
liver cancer, mainly hepatocellular carcinoma, regardless of the
cause of the cirrhosis.
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