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Call Us+91 92688 80303Hepatitis B is the most common liver infection in the world and is caused by the hepatitis B virus. The hepatitis B virus enters the body and travels through the blood to the liver. In the liver, it attaches to the liver cells and multiplies. Although the patient may not have any problems at this phase, multiplication of the virus triggers a response from the body’s immune system.
Hepatitis B infection can lead to cirrhosis (scarring of the liver), liver failure or even liver cancer unless diagnosed and managed early.
There are probably 350-400 million people with chronic (lifelong) hepatitis B infection worldwide.
Hepatitis B infection is considered to be ’acute‘ in the first 6 months after infection. If hepatitis B virus tests (HBsAg) are positive after 6 months, this is now a ‘chronic’ (long term) hepatitis B infection, which may last a lifetime.
Symptoms of acute hepatitis B:
Symptoms resulting from acute hepatitis B infection are common, with jaundice occurring approximately 12 weeks after initial infection. These symptoms are as below:
Many people with acute hepatitis B have no symptoms and never realize they had the infection. A small number of those with acute hepatitis B become very sick in a short period of time. This happens if there is massive damage to the liver and it stops working. This is called acute liver failure.
Symptoms of chronic hepatitis B:
Those who have immunity and normal LFTs do not need treatment. People who are chronically infected but do not have any liver damage also do not need treatment but need close monitoring. However, if a person has liver damage they should consider having treatment for hepatitis B. The decision on when to start treatment is complex and should be made in consultation with a gastroenterologist/hepatologist.
The most common are anti-viral medications taken as tablets each day for a year or longer:
Treatment aims are to stop the hepatitis B virus from multiplying, or to reduce the rate of multiplication as much as possible. This decreases the risk of serious liver disease developing later in life and makes it possible for the liver to repair some of the damage and to work better. However, it is very rare that any of these medications will cure hepatitis B infection.
The main side effect of the antiviral tablets is sometimes the hepatitis B virus mutates (changes) during the course of treatment, which means the antiviral tablets are not as effective against the new form of the virus. This is called antiviral resistance.
During treatment, the patient’s blood tests are monitored very carefully to look for signs of antiviral resistance. If there are signs of resistance such as elevated liver enzymes and high levels of hepatitis B virus in the blood, the antivirals may be changed.
Those who have been exposed to the hepatitis B virus and who have not been vaccinated should receive hepatitis B immunoglobulin (HBIG) within 72 hours of exposure, and a dose of hepatitis B vaccine as soon as possible or within 7 days.
Hepatitis B is a liver infection that is caused by the hepatitis B virus.
Most hepatitis B is not serious, especially when treatment is started early. Untreated and advanced hepatitis B can lead to cirrhosis and cancer of the liver, which are dangerous diseases.
The 'Hbsag' blood test is sufficient to diagnose hepatitis B. Some further tests may be required to detect the activity of the virus.
It is possible to get an infection even in the absence of any symptoms. Symptoms appear only after cirrhosis. When liver cirrhosis becomes advanced it causes jaundice, watery stomach, blood in vomit and altered consciousness.
Treatment of hepatitis B with medicines is effective in preventing disease progression. Even after hepatitis B infection causes cirrhosis, early treatment can prevent some progression of the disease.
Yes, vaccination against hepatitis B can prevent it.
Reviewed By Dr. Ankur Gupta, Senior Consultant – Gastroenterology, Hepatology Endoscopy on 12 June 2024.
Max Healthcare is home to 5000 eminent doctors in the world, most of whom are pioneers in their respective fields. Additionally, they are renowned for developing innovative and revolutionary clinical procedures.
Max Healthcare is home to 5000 eminent doctors in the world, most of whom are pioneers in their respective fields. Additionally, they are renowned for developing innovative and revolutionary clinical procedures.
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