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A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Natural history of acute HCV infection in hemodialysis patients
M Espinosa1, A Martin-Malo, M A Alvarez de Lara
1Servicios de Nefrologia, Hospital Universitario Reina Sofia, Cordoba, Spain. espinosahe@supercable.com
Insights
Hepatitis C virus (HCV) infection frequently leads to chronic liver disease in hemodialysis patients. Over half of acute cases progressed to chronic hepatopathy, though some patients achieved spontaneous HCV clearance.
Area of Science:
- Hepatology
- Virology
- Nephrology
Background:
- Hepatitis C virus (HCV) infection is a significant concern in hemodialysis patients, often leading to chronic liver disease.
- Understanding the progression of acute HCV to chronic hepatopathy in this vulnerable population is crucial for patient management.
Purpose of the Study:
- To analyze the long-term outcomes of acute hepatitis C in hemodialysis patients.
- To determine the rate of evolution to chronic liver disease and identify risk factors.
Main Methods:
- A prospective follow-up study of 19 hemodialysis patients with acute hepatitis C was conducted over 11 years.
- Patients were monitored monthly for alanine aminotransferase (ALT) and HCV-RNA.
- Evolution to chronic liver disease was assessed using biochemical and virological markers.
Main Results:
- The majority of patients (78.9%) developed chronic viremia, and 57.8% progressed to chronic liver disease within a median follow-up of 3 years.
- Liver biopsies in five patients revealed histologic signs of chronic active hepatitis, with one progressing to cirrhosis.
- HCV infection resolved spontaneously in 21% of patients; however, mortality was high (36.8%) though not directly linked to acute HCV as an independent risk factor.
Conclusions:
- A significant proportion of hemodialysis patients with acute hepatitis C develop chronic liver disease, with 56.2% progressing within three years.
- Spontaneous clearance of HCV infection occurred in 21% of cases, highlighting variability in disease outcomes.
- Close monitoring and management strategies are essential for hemodialysis patients with HCV infection to mitigate long-term complications.
Aims:
Chronic liver disease develops in the majority of non-uremic patients with hepatitis C virus (HCV) infection. The aim of this study was to analyze the evolution towards chronic hepatopathy in 19 cases of acute hepatitis C observed in hemodialysis patients from 1990 to 2001.
Methods:
A prospective follow-up study on HCV infection was conducted in 3 HD units from April 1990 to June 2001 to study clinical outcomes after acute hepatitis C. A total of 781 patients were tested monthly for alanine aminotransferase and anti-HCV in serum. In this period, 19 patients suffered from acute hepatitis C. Evolution to chronic liver disease in the follow-up was evaluated by means of biochemical (increased ALT) and virological criteria (HCV-RNA+). The transmission mechanism, the apparition of anti-HCV, clinical manifestations and mortality were also investigated.
Results:
In 15 (78.9%) of the 19 patients, the viremia remained positive (chronic viremia) and 11 patients (57.8%) evolved to chronic liver disease (chronic viremia and high transaminase levels) with a median follow-up of 3 years (range 1 - 6). Five of them who underwent liver biopsies had histologic signs of chronic active hepatitis. One of them (5.2%) evolved to liver cirrhosis in the follow-up. In 4 out of 19 patients (21%) the HCV infection resolved. Although 7 (36.8%) of them died in the follow-up, acute hepatitis C infection was not a short-term independent risk factor of death.
Conclusions:
Three years after acute hepatitis C, 87.5% of the hemodialysis patients remained HCV-RNA positive and 56.2% evolved to chronic liver disease. It is important to stress that HCV infection spontaneously cleared in 4 out of 19 patients (21%).
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