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Factors influencing natural history of chronic hepatitis C
W Kryczka1, E Brojer, D Zarebska-Michaluk
1Probationary Infectious Diseases Department, Voivoid Hospital in Kielce, ul. Radiowa 7, 25-317 Kielce, Poland.
Insights
Advanced age and transfusion history significantly worsen chronic hepatitis C (CHC) outcomes, increasing liver inflammation and fibrosis. Hepatitis B virus (HBV) infection history is also a risk factor for cirrhosis in CHC patients.
Area of Science:
- Hepatology
- Virology
- Epidemiology
Background:
- Chronic hepatitis C (CHC) is a significant global health concern.
- Understanding factors influencing CHC progression is crucial for patient management.
- Epidemiologic and virologic factors play a role in CHC disease course.
Purpose of the Study:
- To assess the influence of selected epidemiologic and virologic factors on the course of chronic hepatitis C.
- To identify risk factors for liver disease progression and hepatic cirrhosis in CHC patients.
Main Methods:
- Analysis of clinical and histological data from 550 CHC patients.
- Assessment of liver disease progression using maximal ALT activity, cirrhosis symptoms, and liver biopsy results.
- Statistical analysis including t-Student and chi-squared tests.
Main Results:
- Patients over 40 years old and those with a history of transfusion showed significantly higher inflammatory activity and liver fibrosis.
- Advanced age, history of blood transfusion, and history of HBV infection were identified as risk factors for hepatic cirrhosis development.
- Neither patient sex nor HCV genotype significantly influenced the course of CHC.
Conclusions:
- Age, transfusion history, and HBV infection history are critical factors in CHC progression and cirrhosis development.
- These findings highlight the importance of considering patient demographics and co-infections in managing CHC.
- Further research may explore targeted interventions based on these identified risk factors.
Abstract:
The aim of the study was to asses influence of selected epidemiologic and virusologic factors on the course of chronic hepatitis C (CHC). Data obtained from 550 CHC patients was analyzed (F/M: 241/309; age: 14-87, average age: 44.9 +/- 15.6). HbsAg and HIV-positive, as well as patients taking drugs were excluded from the study. Progression of the liver disease was assessed by the maximal ALT activity, presence of clinical or histopathological symptoms of hepatic cirrhosis, and 363 liver biopsy results. Clinical and histological data was analyzed depending on: patients sex, age (= 40, and > 40 years old), portal of infection (history data on transfusion or another source of infection), history of HBV infection (presence or absence of anti-HBc antibodies), and HCV genotype (1b or no-1b group). HCV genotype was determined in 170 patients by the use of commercial InnoLipa kit (Innogenetics). Statistical analysis was based on t-Student test and chi-squared test with or without Yates correction. It was proved that in patients over 40 years old or with history of transfusion inflammatory activity and liver fibrosis activity are significantly higher than in the rest of patients. More advanced age, transfusion and history of HBV infection are risk factors for hepatic cirrhosis development in CHC patients. Neither patient's sex nor HCV genotype were found to have significant influence on the course of CHC.