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Prevalence of hepatitis C virus infection in patients with cardiomyopathy
Vijaya Boyella1, Ikenna Onyebueke, Najabh Farraj
1Kings County Hospital Center, New York, New York, USA.
Insights
This study found chronic hepatitis C (HCV) is not prevalent in patients with reduced ejection fraction cardiomyopathy. However, the single chronic HCV case had non-ischemic cardiomyopathy, suggesting a potential link needing further research.
Area of Science:
- Cardiology
- Infectious Diseases
- Hepatology
Background:
- Extrahepatic manifestations of chronic hepatitis C (HCV) are recognized.
- Dilated cardiomyopathy is a serious cardiac condition affecting ejection fraction.
- The potential association between HCV and cardiomyopathy requires further investigation.
Purpose of the Study:
- To explore the association between chronic hepatitis C infection and dilated cardiomyopathy in patients with reduced cardiac ejection fraction.
Main Methods:
- A prospective study involving sixty-three patients with an ejection fraction <40% determined by echocardiogram.
- Serological testing for hepatitis C virus antibodies and RNA was performed.
- Patients were categorized based on cardiomyopathy type: ischemic vs. non-ischemic.
Main Results:
- Chronic hepatitis C was not prevalent in the study group (2.4% prevalence).
- One patient (4.8%) with non-ischemic cardiomyopathy had chronic HCV.
- One patient (4.5%) with ischemic cardiomyopathy had evidence of prior HCV infection, not chronic.
- The only patient with chronic HCV presented with non-ischemic cardiomyopathy.
Conclusions:
- Chronic hepatitis C is not a prevalent finding in patients with reduced ejection fraction cardiomyopathy.
- A potential link between chronic hepatitis C and non-ischemic cardiomyopathy is suggested by this case.
- Further research, including diverse populations, is warranted to investigate genetic predispositions and the impact of hepatitis treatment on cardiomyopathy resolution.
Abstract:
Chronic hepatitis C can be associated with extrahepatic manifestations; thus, we explored the association of this viral infection with dilated cardiomyopathy in a group of sixty-three patients with a cardiac ejection fraction of less than 40% determined by an echocardiogram in a prospective study. Two of the forty-one patients with non-ischemic cardiomyopathy (4.8%) had serum antibodies to the hepatitis C virus and one of those had hepatitis C virus RNA (2.4%) in serum, consistent with chronic hepatitis C. One of the 22 patients with ischemic cardiomyopathy (4.5%) had serum antibodies to the hepatitis C virus but the hepatitis C virus RNA was not detected in their serum, consistent with prior infection but not chronic hepatitis C. In this study, chronic hepatitis C was not prevalent in the group of patients, although the only patient with chronic hepatitis C had non-ischemic cardiomyopathy. As a genetic predisposition to develop cardiomyopathy secondary to chronic hepatitis C has been suggested to be relevant in this type of complication, studies that include different racial and ethnic groups are warranted, as treatment of the hepatitis may lead to resolution of the cardiomyopathy.
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