Liver failure

1- a condition in which the liver fails to fulfill its function or is unable to meet the demand made on it. It may occur as a result of trauma, neoplastic invasion, prolonged biliary obstruction, viral infections (hepatitis C), or chronic alcoholism.
2- Liver failure is the inability of the liver to perform its normal synthetic and metabolic function as part of normal physiology. Two forms are recognised:
1- Acute liver failure - development of hepatic encephalopathy (confusion, stupor and coma) and decreased production of proteins (such as albumin and blood clotting proteins) within four weeks of the first symptoms (such as jaundice) of a liver problem. "Hyperacute" liver failure is said to be present if this interval is 7 days or less, while "subacute" liver failure is said to be present if the interval is 5-12 weeks.
2- Chronic liver failure usually occurs in the context of cirrhosis, itself potentially the result of many possible causes, such as excessive alcohol intake, hepatitis B or C, autoimmune, hereditary and metabolic causes (such as iron or copper overload or non-alcoholic fatty liver disease).
Liver Failure
Liver failure occurs when large parts of the liver become damaged beyond repair and the liver is no longer able to function.
Liver failure is a life-threatening condition that demands urgent medical care. Most often liver failure occurs gradually and over many years. However, a more rare condition known as acute liver failure occurs rapidly (in as little as 48 hours) and can be difficult to detect initially.
What Causes Liver Failure?
The most common causes of chronic liver failure (where the liver fails over months to years) include:
• Hepatitis B
• Hepatitis C
• Long term alcohol consumption
• Cirrhosis
• Hemochromatosis (an inherited disorder that causes the body to absorb and store too much iron)
• Malnutrition
The causes of acute liver failure, when the liver fails rapidly, however, are often different. These include:
• Acetaminophen (Tylenol) overdose.
• Viruses including hepatitis A, B, and C (especially in children).
• Reactions to certain prescription and herbal medications.
• Ingestion of poisonous wild mushrooms.

What Are the Symptoms of Liver Failure?
The initial symptoms of liver failure are often ones that can be due to any number or conditions. Because of this, liver failure may be initially difficult to diagnose. Early symptoms include:
• Nausea
• Loss of appetite
• Fatigue
• Diarrhea
However, as liver failure progresses, the symptoms become more serious, requiring urgent care. These symptoms include:
• Jaundice
• Bleeding easily
• Swollen abdomen
• Mental disorientation or confusion (known as hepatic encephalopathy)
• Sleepiness
• Coma
How Is Liver Failure Treated?
If detected early enough, acute liver failure caused by an overdose of acetaminophen can sometimes be treated and its effects reversed. Likewise, if a virus causes liver failure, supportive care can be given at a hospital to treat the symptoms until the virus runs its course. In these cases the liver will sometimes recover on its own.
For liver failure that is the result of long-term deterioration, the initial treatment goal may be to save whatever part of the liver is still functioning. If this is not possible, then a liver transplant is required. Fortunately, liver transplant is a common procedure that is often successful.
How Can Liver Failure Be Prevented?
The best way to prevent liver failure is to limit your risk of developing cirrhosis or hepatitis. Here are some tips to help prevent these conditions.
• Get a hepatitis vaccine or an immunoglobulin shot to prevent hepatitis A or B.
• Eat a proper diet from all of the food groups.
• Drink alcohol in moderation. Avoid alcohol when you are taking acetaminophen (Tylenol).
• Practice proper hygiene. Since germs are commonly spread by hands, be sure to wash your hands thoroughly after you use the bathroom. Also, wash your hands before you touch any food.
• Don't handle any blood or blood products.
• Don't share any personal toiletry items, including toothbrushes and razors.
• If you get a tattoo or a body piercing, make sure the conditions are sanitary and all equipment is aseptic (free of disease-causing microorganisms).
• Be sure to use protection (condoms) when having sex.
• If you use illegal intravenous drugs, don't share needles with anyone.