Related Experiment Video
Updated: Oct 10, 2026

Rapid Detection of Fecal Antigen of Helicobacter pylori Infection Based on Double Antibody Sandwich Detection Technology
Published on: May 23, 2025
Helicobacter pylori seroprevalence in hepatitis C virus positive patients with cirrhosis
R Pellicano1, N Leone, M Berrutti
1Department of Internal Medicine, University of Turin, Italy.
Insights
Helicobacter pylori (H. pylori) infection is significantly more common in liver cirrhosis patients (89%) compared to controls (59%). This high prevalence may explain frequent ulcers and impact prognosis in hepatitis C virus-infected individuals.
Area of Science:
- Hepatology
- Gastroenterology
- Infectious Diseases
Background:
- Liver cirrhosis is a major cause of mortality and hospitalization in Italy.
- Acute peptic ulcers and upper gastrointestinal bleeding affect over a third of cirrhosis patients.
- Helicobacter pylori (H. pylori) infection is a known risk factor for peptic ulcer disease.
Purpose of the Study:
- To determine the prevalence of H. pylori infection in patients with liver cirrhosis.
- To investigate the association between H. pylori infection and liver cirrhosis.
- To explore the potential impact of H. pylori on the prognosis of hepatitis C virus (HCV)-related cirrhosis.
Main Methods:
- A case-control study was conducted.
- 254 patients with HCV-related cirrhosis were compared with 463 age- and sex-matched controls.
- H. pylori infection was assessed by detecting antibodies.
Main Results:
- Antibodies to H. pylori were found in 89% of cirrhotic patients (226/254).
- In the control group, 59% (275/463) tested positive for H. pylori antibodies.
- The difference in H. pylori prevalence between cirrhotic patients and controls was statistically significant (p<0.0001).
Conclusions:
- The high prevalence of H. pylori infection in liver cirrhosis patients likely contributes to the frequent occurrence of gastroduodenal ulcers.
- H. pylori infection may influence the prognosis of patients with HCV-related cirrhosis.
- Further research is warranted to elucidate the specific mechanisms and clinical implications.
Background/Aims:
Liver cirrhosis is a significant cause of death in Italy and one of the most frequent causes of hospitalization. Acute peptic ulcer and upper gastrointestinal bleeding reportedly occur in over one-third of cirrhotic patients. Since Helicobacter pylori (H. pylori) infection strongly correlates with peptic ulcer, we sought to ascertain the prevalence of H. pylori infection in cirrhotic patients.
Methods:
In a case-control study, we examined 254 consecutive patients (127 male and 127 female, age range 30-82 years) suffering from hepatitis C virus (HCV)-related cirrhosis and 463 sex- and age-matched patients admitted to the Department of Emergency Care of our hospital (254 male, 209 female, age range 30-79 years) resident in the same area.
Results:
Antibodies to H. pylori were present in 226/254 (89%) cirrhotic patients and in 275/463 (59%) controls (p<0.0001). The difference was significant both in males and in females.
Conclusions:
The very high prevalence of H. pylori infection may explain the frequent occurrence of gastroduodenal ulcer in cirrhotic patients and may possibly determine the prognosis of those who are also infected with HCV.
Related Concept Videos
Hepatitis
Gastritis II: Pathophysiology
Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy
Peptic Ulcer
Viral Hepatitis I: Introduction
Cirrhosis II: Pathophysiology