[What General/Family Medicine Practitioner should Know about Viral Hepatitis]

Area of Science:

• Hepatology
• Virology
• Gastroenterology

Background:

• Viral hepatitis is a systemic liver disease caused by five main hepatotropic viruses (A, B, C, D, E).
• Hepatitis B and C are particularly concerning due to their predisposition to chronic forms, leading to severe outcomes like cirrhosis, hepatocellular carcinoma, and liver failure.
• Clinical presentation varies from asymptomatic to fulminant, with common symptoms including malaise, nausea, anorexia, and jaundice.

Purpose of the Study:

• To provide a comprehensive overview of viral hepatitis, covering its causes, clinical manifestations, diagnostic approaches, and management strategies.
• To highlight the distinct characteristics and diagnostic challenges associated with different hepatitis viruses, especially Hepatitis B and C.
• To emphasize the importance of early detection, prevention, and appropriate medical intervention in managing viral hepatitis and its complications.

Main Methods:

• Review of clinical features, diagnostic laboratory tests (liver enzymes, bilirubin, coagulation factors), and serologic markers for viral hepatitis.
• Description of diagnostic assays including IgM/IgG antibodies for Hepatitis A, HBsAg, anti-HBsAg, anti-HBcAg, and HBV DNA for Hepatitis B, and anti-HCV and HCV RNA for Hepatitis C.
• Outline of therapeutic approaches, including supportive care, dietary recommendations, avoidance of hepatotoxic agents, and the use of immunomodulators and antiviral agents for chronic forms.

Main Results:

• Standard laboratory tests reveal elevated liver enzymes (AST, ALT, ALP) in the acute phase and elevated LDH in the chronic phase.
• Serologic tests are crucial for identifying specific viral etiologies: IgM anti-HAV for acute Hepatitis A, HBsAg and anti-HBsAg/anti-HBcAg for Hepatitis B, and anti-HCV/HCV RNA for Hepatitis C.
• Treatment involves supportive care in the acute phase and immunomodulators/antivirals for chronic hepatitis, with a focus on preventing complications like cirrhosis and cancer.

Conclusions:

• Viral hepatitis diagnosis relies on a combination of clinical presentation, laboratory tests, and specific serologic markers.
• Hepatitis B and C require vigilant management to prevent progression to chronic disease, cirrhosis, and hepatocellular carcinoma.
• Preventive measures, including vaccination and screening of high-risk populations, alongside timely medical consultation, are essential for effective viral hepatitis control.