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Cardiovascular outcomes in hepatitis C virus infected patients treated with direct acting antiviral therapy: a
Victor Chien-Chia Wu1,2, Chien-Hao Huang2,3, Chun-Li Wang1,2
1Division of Cardiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taoyuan City 333423, Taiwan.
Insights
Direct acting antiviral (DAA) treatment significantly reduces cardiovascular events and mortality in chronic hepatitis C virus (HCV) patients. DAA therapy showed the most significant impact in reducing venous thromboembolism (VTE) among cardiovascular outcomes.
Area of Science:
- Hepatology
- Cardiology
- Infectious Diseases
Background:
- Chronic hepatitis C virus (HCV) infection is a known risk factor for cardiovascular diseases.
- Understanding the impact of antiviral therapies on cardiovascular outcomes in HCV patients is crucial.
Purpose of the Study:
- To investigate the effect of direct-acting antiviral (DAA) treatment on cardiovascular events in patients with chronic HCV infection.
- To compare cardiovascular outcomes between HCV patients who received DAA treatment and those who did not.
Main Methods:
- Retrospective cohort study utilizing multi-institutional electronic medical records.
- Patients with chronic HCV were divided into DAA treatment and non-DAA treatment groups.
- Primary outcomes included acute coronary syndrome, heart failure, venous thromboembolism, stroke, cardiovascular death, MACE, and all-cause mortality, analyzed using inverse probability of treatment weighting.
Main Results:
- DAA treatment was associated with significantly decreased rates of heart failure (HR: 0.65), venous thromboembolism (HR: 0.19), major adverse cardiovascular events (HR: 0.73), and all-cause mortality (HR: 0.50) at 3-year follow-up.
- The study included 1984 patients in the DAA group and 413 in the non-DAA group after exclusions.
- The reduction in venous thromboembolism (VTE) was the most pronounced cardiovascular benefit observed with DAA treatment.
Conclusions:
- Direct-acting antiviral (DAA) treatment in chronic HCV patients leads to lower incidence of cardiovascular events and all-cause mortality compared to untreated patients.
- DAA therapy demonstrates a significant protective effect against major adverse cardiovascular events and mortality in the HCV population.
- The most substantial benefit of DAA treatment among cardiovascular outcomes was the significant reduction in venous thromboembolism (VTE).
Background:
Chronic hepatitis C virus (HCV) infection is associated with increased cardiovascular risks. We aimed to investigate the impact of direct acting antiviral (DAA) on HCV-associated cardiovascular events.
Methods:
In this retrospective cohort study, patients with the diagnosis of chronic HCV were retrieved from multi-institutional electronic medical records, where diagnosis of HCV was based on serum HCV antibody and HCV-RNA test. The patients eligible for analysis were then separated into patients with DAA treatment and patient without DAA treatment. Primary outcomes included acute coronary syndrome, heart failure (HF), venous thromboembolism (VTE), stroke, cardiovascular death, major adverse cardiovascular event (MACE), and all-cause mortality. Outcomes developed during follow-up were compared between DAA treatment and non-DAA treatment groups.
Results:
There were 41 565 patients with chronic HCV infection identified. After exclusion criteria applied, 1984 patients in the DAA treatment group and 413 patients in the non-DAA treatment group were compared for outcomes using inverse probability of treatment weighting. Compared to patients in non-DAA treatment group, patients in DAA treatment group were associated with significantly decreased HF (hazard ratio [HR]: 0.65, 95% confidence interval [CI]: 0.44-0.97, P = 0.035), VTE (HR: 0.19, 95% CI: 0.07-0.49, P = 0.001), MACE (HR: 0.73, 95% CI 0.59-0.92, P = 0.007), and all-cause mortality (HR: 0.50, 95% CI: 0.38-0.67, P < 0.001) at 3-year follow-up.
Conclusions:
Chronic HCV patients treated with DAA experienced lower rates of cardiovascular events and all-cause mortality than those without treatment. The reduction of VTE was the most significant impact of DAA treatment among the cardiovascular outcomes.
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