[Epidemic outbreak of acute hepatitis C--clinical course, histology and effectiveness of therapy]

Janusz Cianciara1, Joanna Jabłońska, Andrzej Horban

  • 1Klinika Hepatologii i Nabytych Niedoborów Immunologicznych Instytutu Chorób, Zakaźnych i Pasozytniczych AM w Warszawie. liver@zigzag.pl

Przeglad Epidemiologiczny
|September 30, 2005
PubMed

Insights

Early treatment of acute Hepatitis C Virus (HCV) infection with pegylated interferon alfa-2b and ribavirin can prevent chronic disease. This combination therapy is effective and safe, even in patients with coronary heart disease.

Area of Science:

  • Hepatology
  • Virology
  • Infectious Diseases

Background:

  • An epidemic outbreak of Hepatitis C Virus (HCV) infection occurred in patients receiving chelate therapy.
  • Fifteen patients with acute HCV infection were identified, all with elevated ALT and positive HCV RNA.

Purpose of the Study:

  • To evaluate the efficacy and safety of pegylated interferon alfa-2b and ribavirin in treating acute HCV infection.
  • To determine if early treatment can prevent progression to chronic hepatitis C.

Main Methods:

  • Ten patients with acute HCV were treated with pegylated interferon alfa-2b and ribavirin for 12 weeks.
  • No control group was used; five patients had contraindications to therapy.
  • Liver biopsies were performed on six patients to assess hepatitis activity.

Main Results:

  • Sustained viral response (SVR) and normalized ALT were observed in 60% (6/10) of treated patients.
  • Two untreated patients experienced spontaneous recovery.
  • Treatment side effects were minimal and did not lead to therapy interruption.

Conclusions:

  • Pegylated interferon alfa-2b and ribavirin administered 1-6 months after jaundice or elevated ALT can prevent chronic HCV infection.
  • The therapy is effective and safe in asymptomatic acute HCV infection, including in adult patients with stable coronary heart disease.

Related Concept Videos

Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Cirrhosis II: Pathophysiology01:24

Cirrhosis II: Pathophysiology

Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...
Cirrhosis I: Introduction01:23

Cirrhosis I: Introduction

Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...