Hepatitis D - Signs, Symptoms, Diagnosis, and Treatment

Introduction:

Hepatitis means inflammation of the liver. When the liver is inflamed, its functioning capacity is affected, which leads to other complications. Medications, toxins, viruses, and exposure to certain chemicals can cause liver inflammation. Once the liver is affected, it loses its ability to excrete toxins and bilirubin from the body and the production of certain proteins, which results in many diseased conditions.

What Is Hepatitis D?

Hepatitis D is liver inflammation caused by the hepatitis D virus (HDV). It is a defective RNA virus (delta) that needs HBV (hepatitis B) for its replication. This crucial condition only affects people with a history of hepatitis B infection. Hepatitis D occurs as a coinfection with acute hepatitis B. It may also occur as a superinfection in chronic hepatitis B.

How Common Is Hepatitis D?

Hepatitis D is more common in eastern and southern Europe, the Mediterranean and Middle East, and parts of Asia, such as Mongolia, central Africa, and the Amazon River Basin.

What Are the Types of Hepatitis D?

Most commonly, there are two types of hepatitis D.

They are:

1. Acute Hepatitis D: It is considered a short-term infection. The signs and symptoms of acute hepatitis D have a resemblance to any other type of hepatitis and are more severe. The body can often cope with the infection, and the virus fades away.

2. Chronic Hepatitis D: Chronic hepatitis D occurs when the body fails to fight the virus, and the virus does not go. Individuals who have both hepatitis B and hepatitis D, develop complications more quickly than people with chronic hepatitis B.

How Is Hepatitis D Transmitted?

The routes of hepatitis D transmission are mostly the same as those of hepatitis B:

• Coming into contact with broken skin with infected blood or blood products via injection or tattooing.

• It can be caused by coming into direct contact with the infected person, such as by coming into contact with the infected person's urine, vaginal fluids, blood, and semen.

• From an infected mother to her child during birth.

• People who have the habit of taking recreational injectable drugs.

• Chronic HBV carriers are at risk of infection by HDV.

• Those who are not immune to HBV are at risk of getting infected with HDV.

• Those with hepatitis C virus and human immunodeficiency virus (HIV) infections may get infected with HDV.

• Those who undergo hemodialysis, men who have sex with men, or commercial workers tend to get infected with coinfection of HBV and HDV.

What Are the Signs and Symptoms of Hepatitis D?

The signs and symptoms of hepatitis D are:

• Nausea and vomiting.

• Malaise (weakness and feeling tired).

• Weight loss.

• Swelling of the abdomen (ascites - due to fluid accumulation in the abdomen).

• Itchy skin.

• Edema (swelling of the ankles).

• Jaundice (yellowish discoloration of the skin, mucous membrane, and whites of the eye).

• Loss of appetite.

• Liver pain in the right upper part of the abdomen.

• Darkening of urine.

• Lightening of stools.

• Joint pain.

How Is the Diagnosis Made for Hepatitis D?

The following diagnostic methods are used:

1. Blood Test:

• IgM antibody to hepatitis A virus (IgM anti-HAV).

• Hepatitis B surface antigen (HBsAg).

• Serologic testing.

• IgM antibodies to IgM anti-HBc are hepatitis B core, antibody-HCV (hepatitis C virus), and HCV RNA PCR, that is, hepatitis C RNA PCR.

• HDV - High levels of anti-HDV immunoglobulin G (IgG) and immunoglobulin M (IgM) are confirmed by detecting HDV RNA in serum.

2. Elastography: A special ultrasound is used to measure the stiffness of the liver.

3. Liver Biopsy: A needle separates a small piece of tissue from the liver. It is sent to the laboratory and examined under a microscope. Observed for signs of damage or disease to the liver.

What Is the Treatment Provided for Hepatitis D?

• Hepatitis D cannot be cured. Its severity can be controlled and managed.

• Once hepatitis D is detected, one should contact a healthcare provider immediately to avoid further complications.

• Pegylated interferon-alpha is generally required for hepatitis D. Medication is given once a day orally.

• This treatment may last for 48 weeks, irrespective of the patient's response.

• Many a time, viruses may provide a low response rate to treatment. The treatment is linked to a lower likelihood of progression of the disease.

• More concentration is given to reduce the burden of chronic hepatitis B.

• Treatment with minimal side effects or no side effects is needed to compensate for conditions like cirrhosis (end-stage liver disease), autoimmune disease (hepatitis due to the body’s abnormal immune system), and active psychiatric conditions.

How Can Hepatitis D Be Prevented?

• Avoiding hepatitis B infection is the only way to prevent hepatitis D infection. However, all methods to prevent hepatitis B infection help prevent and reduce the risk of getting hepatitis D.

• Getting vaccinated can help prevent hepatitis B. All children need to be vaccinated. Adults with a high risk of infection need to be vaccinated. Vaccination is usually done in an episode of three consecutive injections over six months.

• Be cautious during tattooing and piercing, inquire about sterilizing the equipment, and ensure they use sterile needles. Trustworthy places to be chosen.

• Stopping the usage of drugs and avoiding injectable recreational drugs like heroin and cocaine is necessary.

• Practicing safe sex and using protection such as condoms are essential. Not to have unprotected sex with someone who has been infected by any type of hepatitis or any STDs (sexually transmitted diseases).

How Do Doctors Treat the Complications of Hepatitis D?

If hepatitis D leads to liver cirrhosis, a healthcare professional with a specialization in the liver must be consulted for help. After the examination and tests, they decide whether to treat the patient with medicines, surgery, or any other medical procedure. If not treated, liver cirrhosis may develop into liver cancer. Ultrasound or imaging tests are done to learn about liver cancer. In cases of acute liver failure, liver failure, or liver cancer, a liver transplant may be required.

Is the Hepatitis D Vaccine Available?

No vaccine is available for hepatitis D, but a vaccine for hepatitis B is available and can help prevent it.

Conclusion:

Hepatitis D is a crucial condition that may lead to serious, life-threatening complications. Hepatitis D infection can be termed a Delta virus infection. If the person is diagnosed with hepatitis D, making healthy choices and eating a proper nutritious diet to protect the liver from further damage is necessary. Informing the dentist before dental treatments is essential to avoid spreading the infection. Avoiding close contact with other healthy people to avoid its spread is necessary. Chronic hepatitis B can result in chronic liver infection. It may further lead to end-stage liver disease and associated complications like accelerated fibrosis, hepatocellular carcinoma, and liver decompensation.