Liver Disease
Screening and treatment for hepatitis A, B, C and D, and non-alcoholic fatty liver disease.
Hepatitis A (HAV)
Hepatitis A is a contagious liver disease caused by the Hepatitis A virus that is often self-limited in most cases. People who get Hepatitis A may feel sick for a few weeks to several months, but usually recover completely and do not have lasting liver damage.
Transmission
Can occur through:
- Consuming contaminated food or drink
- Person-to-person contact
- Sexual contact
- Recreational drug use
Prevention of Hepatitis A
The best way to prevent Hepatitis A is by getting vaccinated and practicing good hand hygiene. The current Hepatitis A vaccine is recommended for anyone over 2 years of age wanting protection or those who may be at risk for acquiring Hepatitis A such as:
- Persons with liver disease
- Persons living with HIV
- Healthcare workers
- Persons working with primates
- Travel abroad to rural areas at moderate-high risk
Hepatitis B (HBV)
Hepatitis B is a contagious liver disease that can range in severity from a mild illness lasting a few weeks to a serious lifelong illness and is caused by the Hepatitis B virus. It is usually spread when blood, genital secretions, or body fluid from a person infected with the Hepatitis B virus enters the body of someone who is not infected.
Transmission
Can occur through:
- Sexual contact with an infected person, sharing razors, needles, syringes, or other drug-injection equipment, during birth from mother to baby.
Cannot be transmitted by:
- Sharing items such as drinking glasses, silverware, or using the same bathroom.
Types of Hepatitis B
Acute Hep-B: a short-term illness that occurs within the first 6 months of exposure to the Hepatitis B virus, that can, but does not always, lead to chronic infection.
- Treatment: in most adults the immune system controls the infection and builds immunity within about 6 months.
Chronic Hep-B: a long term potentially serious illness that can lead to health problems such as liver cirrhosis, liver cancer and even death.
- Treatment: not everyone needs immediate treatment and will be monitored over time. For others, antiviral medications may be recommended to reduce or reverse liver damage and prevent long-term complications.
Prevention of Hepatitis B
The best way to prevent Hepatitis B is by getting vaccinated. The current Hepatitis B vaccine is recommended for all children 0 to 18 and adults at risk for acquiring Hepatitis B such as:
- People with liver disease
- Healthcare workers
- Sexually active people with casual partners
- People with a history of STIs
- Anyone wanting protection in case of exposure
Hepatitis C (HCV)
Hepatitis C is a contagious liver disease, caused by the Hepatitis C virus, that can range in severity from a mild illness lasting a few weeks to a serious, lifelong illness. It is usually spread when blood from a person infected with the Hepatitis C virus enters the body of someone who is not infected.
Transmission
Can occur through:
- Sharing razors, needles, syringes, drug paraphernalia, contaminated tattoo instruments, and contaminated blood products.
Types of Hepatitis C
- Acute Hep-C: a short-term illness that occurs within the first 6 months of exposure to the Hepatitis C virus. About 20% of people spontaneously clear the virus without treatment, making this scenario relatively uncommon.
- Chronic Hep-C: a potentially serious illness that can lead to health problems such as liver cirrhosis, liver cancer and even death. 80% of people slowly progress to chronic Hep-C, and it may take years to develop any liver problems, but screening and early intervention is key to prevention of long-term health problems.
Prevention of Hepatitis C
No vaccination currently exists against Hepatitis C.
Key Prevention practices include:
- Avoiding direct contact with infected blood
- Never sharing needles or drug equipment
- Ensuring sterile equipment for tattoos/piercings
- Practicing safe sex
- Not sharing personal items like razors or toothbrushes
- Routine testing
Treatment
Hepatitis C infection is curable in almost all cases with initiation of antiviral therapy, with an effective cure rate of 98% of cases within 8 to 12 weeks.
A person previously treated for Hep-C will always have a reactive HCV-Antibody test despite the lack of virus and can be reinfected. An HCV Viral Load will be obtained for these individuals to monitor for re-exposure and/or a newly active infection.
Hepatitis D
Hepatitis D, also known as "delta hepatitis," is a liver infection caused by the hepatitis D virus (HDV). Hepatitis D only occurs in people who are also infected with the hepatitis B virus. Hepatitis D is spread when blood or other body fluids from a person infected with the virus enters the body of someone who is not infected. One in 20 people with hepatitis B are estimated to be coinfected with hepatitis D.
Non-alcoholic Fatty Liver Disease
Non-alcoholic Fatty Liver Disease (NAFLD) occurs when fat is increased in the liver and there is not a clear cause like excessive alcohol use. Over time, these fat deposits can cause liver damage and lead to other health complications.
NAFLD Types
- Simple Fatty Liver: excess fat buildup without significant inflammation or liver damage.
- Nonalcoholic Steatohepatitis (NASH): excess fat buildup with inflammation and significant scarring, called cirrhosis.
Treatment
There are no specific medications to treat fatty liver disease. Treatment consists mainly of lifestyle modifications and the treatment of other possible underlying conditions that may be responsible for causing the excess fat build up.
FAQs
Can my HCV test be wrong (falsely positive)?
Yes, your HCV antibody test could be a false positive test, which means the test looks as if it is positive, but it is really negative. This happens more often in people who have a low risk for the disease for which they are being tested. Sometimes there could be some blood reactants that can turn a screening test positive.
It is very important that a case of a false positive test is confirmed with a more sophisticated test and repeat at least twice over a period of time. Only a qualified physician in the evaluation and management of Hepatitis C should be able to determine if your test is a false positive or not. By far, most positive HCV antibody tests are indeed truly positive, even in a person with unknown risk factors.
What are the chances I may need treatment?
Treatment is strongly recommended for all patients with acute or chronic Hepatitis C infection.
What lab work is my doctor going to order?
At your first evaluation your doctor might order some blood work that includes Hepatitis C viral load, Hepatitis C genotype, liver function tests, complete cell blood count and, it is often required, blood work to rule out concomitant infections or some other illnesses that might change the treatment approach.
What are liver function tests or liver enzymes?
Liver function tests (LFT's), which include liver enzymes, are groups of clinical biochemistry laboratory blood assays designed to give information about the state of a patient's liver. These tests can be used to (1) detect the presence of liver disease, (2) distinguish among different types of liver disorders, (3) gauge the extent of known liver damage, and (4) follow the response to treatment. ALT and AST are enzymes present in hepatocytes (liver cells). When a liver cell (hepatocyte) is damaged, it leaks these enzymes into the blood, where they can be measured. ALT and AST levels rise frequently on patients with chronic viral hepatitis, and other conditions, such as alcohol use. A normal level should be interpreted with carefulness because it does not always correlate with a healthy liver.
What is a Hepatitis C viral load?
Your viral load is the amount of specific viruses that you have, in a given volume of your blood (usually 1 milliliter = 1 cubic centimeter). More precisely, it means that the amount of Hepatitis C genetic material found in your blood corresponds to as many Hepatitis C viruses as the given number says.
Viral load varies between infected individuals and varies from time to time in the same individual. Your viral load becomes useful for your doctor to follow and monitor the response to Hepatitis C treatment and cure.
What is a Hepatitis C genotype?
The hepatitis C genotype (GT) is a type or "strain" of hepatitis C virus. There are 6 genotypes of hepatitis C around the world. In the United States, 3 genotypes are common: GT 1, 2, and 3. The GT of hepatitis C does not change over time. It needs to be tested only once. Approximately 75% of Americans with hepatitis C have GT 1 whereas GT 2 and 3 share the remainder 25%.
Do I need a liver biopsy and is it safe?
Liver biopsies for HCV evaluation are becoming less necessary. There are other non-invasive staging methods such as laboratory fibrosis score (blood sample collection) and transient elastography (fibroscan) that can assist the provider in determining the extent of liver damage. Rarely, a liver biopsy is still required; this biopsy is a procedure that involves obtaining a small piece of liver tissue, which is then analyzed in the laboratory. A liver biopsy may be recommended to diagnose a problem or to determine the severity of liver disease. As a general rule, a liver biopsy is recommended only when the results would affect the planned treatment or management.
What is Cirrhosis?
Cirrhosis is the term used to describe a diseased liver that has been severely scarred, usually due to many years of continuous injury. The most common causes of cirrhosis include fatty liver disease, longstanding alcohol abuse, hepatitis B or hepatitis C. Although cirrhosis cannot be cured, there are a number of things you can do to prevent the disease from worsening. Patients with cirrhosis are at higher risk of liver cancer therefore they need to have surveillance lifelong for prompt identification and treatment.
Can I try herbal treatment?
Many herbal products claim that they may help to detoxify the liver, and in patients with significant liver inflammation it is possible that some of these agents may be marginally effective in decreasing liver inflammation, but they do not cure the virus. Many herbal products claim to "cure" or improve hepatitis C; none of these claims have been proven true. In addition, some herbal medications can seriously injure the liver.
What if I tried treatment in the past and I did not respond?
There are several new and highly effective treatments eliminating the need for interferon. These treatments are extremely effective also reaching 95 to 100% with improved tolerability. A person treated in the past with no response should look for re-treatment as soon as possible.
Will I need a liver transplant?
Your doctor should be able to determine when you need to be considered for liver transplant consultation. Patients are considered for liver transplant when there is irreparable damage to the liver that leads to permanent impairment of its regular function jeopardizing the patient's life. In adults, the most common reason for a liver transplant is cirrhosis. Cirrhosis is caused by many different types of liver injuries that destroy healthy liver cells and replace them with scar tissue. Cirrhosis can be caused by viruses such as hepatitis B and C, alcohol, autoimmune liver diseases, buildup of fat in the liver, and hereditary liver diseases. The transplant process is elaborate, involving an extensive screening process for eligibility. Thus, not all patients with cirrhosis are eligible, and only those with the most advanced, severe cirrhosis are placed on the transplant registry.