About Liver Failure
Liver failure can be caused by a variety of factors:
- Viral infections, such as hepatitis A, hepatitis B, and hepatitis C
- Genetic conditions, such as Wilson's disease
- Autoimmune conditions, such as autoimmune hepatitis
- Alcohol misuse and alcohol-related liver disease
- Non-alcoholic fatty liver disease (NAFLD)
- Diseases that affect the bile ducts, such as cholangitis
- Conditions that affect the veins of the liver, such as Budd-Chiari syndrome
- Overdose of certain medications, such as acetaminophen
- Reactions to other medications or herbal supplements
- Exposure to toxins, such as industrial chemicals or poisonous wild mushrooms
Non-modifiable risk factors of liver failure, which are factors that cannot be controlled to reduce the risk of developing the condition, include:
- Age: As people get older, especially after 40 or 50, their risk of liver failure increases. Age is a non-modifiable risk factor.
- Sex assigned at birth: Males assigned at birth have a higher risk of progressing to liver failure, making this a non-modifiable factor.
- Genetics: A family history of liver failure or related liver diseases raises the risk of developing liver failure, due to genetic predispositions.
- Race or ethnicity: Certain racial and ethnic groups may have a higher risk of liver failure, though this is often influenced by social and cultural factors rather than biology.
Modifiable risk factors of liver failure can be modified or changed to help prevent the development of liver failure:
- Alcohol consumption: Heavy drinking can damage the liver, increasing the risk of liver failure.
- Obesity: Excess weight can lead to fatty liver disease, which may progress to liver failure.
- Viral infections: Hepatitis B and C infections can cause liver damage, but vaccination and treatment can reduce this risk.
- Medication use: Overuse of certain drugs, like acetaminophen, can harm the liver, so proper medication management is important.
- Unhealthy diet: Poor nutrition can contribute to liver disease, while a balanced diet can help protect liver health.
- Co-current conditions: Certain medical conditions can increase the risk of developing liver failure. These include diabetes, steatosis (accumulation of fat in the liver), and infections such as hepatitis B virus or human immunodeficiency virus (HIV). Managing these conditions effectively through proper medical care and lifestyle modifications can help reduce the risk of liver failure.
It's important to note that these risk factors may vary in their impact on individuals and having these risk factors do not guarantee you will get liver failure. It's always best to consult with a healthcare professional for personalized advice.
The most common early symptoms of liver failure include:
- Fatigue
- Loss of appetite
- Nausea
- Diarrhea
As liver failure progresses or reaches later stages, the following symptoms may occur:
- Jaundice (yellowing of the eyes or skin)
- Itchy skin
- Easy bruising
- Darkening of urine
- Black stool
- Vomiting blood
- Bloating in the abdomen due to fluid buildup (ascites)
- Swelling in the extremities (edema)
- Forgetfulness or confusion
In more severe cases, liver failure can lead to coma. Acute liver failure, which occurs over a shorter period, can also cause pain or swelling in the right abdomen, nausea, vomiting, and feeling sleepy or disoriented.
Remember, these symptoms can vary from person to person. If you experience any of these symptoms or suspect liver failure, it is important to seek medical attention promptly.
To diagnose liver failure, several examinations, tests, and procedures may be performed:
- Physical examination: A healthcare provider will conduct a physical examination to assess any physical signs of liver problems, such as pain, swelling, or masses in the body.
- Medical history: Your healthcare provider will gather information about your medical history and any previous diagnoses to understand your overall health.
- Liver function tests: These tests measure the levels of proteins and enzymes in your blood to assess how well your liver is functioning.
- Complete blood count: This test evaluates the number of red and white blood cells in your blood and can help identify conditions that may cause liver damage.
- Imaging tests: Imaging technologies like ultrasound, CT scan, or MRI can provide visual scans of the liver to detect abnormalities or damage.
- Biopsy: In some cases, a tissue sample may be taken from the liver through a biopsy procedure to assess the presence of scar tissue and determine the underlying cause of liver failure.
To determine the stage or severity of liver failure, additional examinations, tests, and procedures may include:
- Imaging studies: Additional imaging tests such as CT scans, bone scans, or angiography may be performed to evaluate the extent of liver damage and identify any spread to other organs.
- Prothrombin time (PTT) test: This test measures how long it takes for your blood to clot and can indicate how well the liver is producing clotting factors.
- Liver biopsy: A biopsy may be repeated to monitor changes in liver tissue over time and assess disease progression.
It's important to note that specific examinations, tests, and procedures may vary depending on individual circumstances. It's best to consult with a healthcare professional for personalized advice.
The goals of treatment for liver failure are:
- Support liver regeneration or bridge to liver transplantation: Help the liver recover or provide temporary support until a transplant is possible
- Maximize long-term inhibition of HBV replication: Control hepatitis B virus (HBV) to slow liver damage over time
- Reduce liver cell inflammation and necrosis: Lower inflammation and death of liver cells to protect liver function
- Reduce liver fibrous tissue hyperplasia: Limit the buildup of scar tissue in the liver
- Delay and reduce complications: Slow the onset of liver failure, cirrhosis, liver cancer, and other related problems
To achieve these treatment goals, these treatments are recommended:
- Medications:
- Antiviral medications: Treat viral hepatitis infections
- Immune-suppressing medications: Treat autoimmune hepatitis
- Therapies:
- Molecular adsorbent recirculating system (MARS) therapy: Offers relief for specific symptoms of liver failure by helping to filter toxins from the blood and support liver function
- Therapeutic procedures:
- Standard medical therapy (SMT): Includes treatments like a high-calorie diet, enteral feeding, correcting low protein and electrolyte imbalances, antiviral drugs for hepatitis B, infection control, restricted protein for hepatic encephalopathy, lactulose for ammonia buildup, diuretics for fluid retention (ascites), and oxygen therapy for lung issues related to liver disease
- Artificial Liver Support System (ALSS) treatment: Uses methods like plasma exchange (PE), continuous blood purification (CBP), or plasma diafiltration (PDF) based on the severity and complications of liver failure
- Lifestyle changes:
- Abstaining from alcohol: Avoiding alcohol can prevent further liver damage and improve liver function in patients with liver failure.
- Losing weight if overweight: Shedding excess weight reduces the strain on the liver, helping slow or reverse fatty liver disease and related complications.
- Avoiding certain medications: Steering clear of drugs that are hard on the liver, such as acetaminophen or certain antibiotics, can protect the liver from further harm.
- Other treatments:
- N-acetylcysteine (NAC): Used for acetaminophen poisoning.
- Steroids: Used for autoimmune flare-ups.
- Penicillin: Used for mushroom poisoning.
It's important to note that the effectiveness and suitability of these treatments may vary depending on individual circumstances. Consult a healthcare professional for personalized advice.
Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Other side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.