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Enteroviral RNA in dilated cardiomyopathy
1Department of Pathology, Iwate Medical University School of Medicine, Japan.
European Heart Journal
|July 1, 1994
Summary
Enteroviral infection may play a role in dilated cardiomyopathy (DCM). Researchers found enteroviral RNA in nearly half of DCM patients, correlating with rapid cardiac failure and significant myocardial changes.
Area of Science:
- Cardiology
- Virology
- Pathology
Background:
- Dilated cardiomyopathy (DCM) etiology is often unclear.
- A potential link between coxsackievirus myocarditis and DCM has been hypothesized.
- Enteroviral infections are implicated in various cardiac conditions.
Purpose of the Study:
- To investigate the role of enteroviral infection in the development of dilated cardiomyopathy.
- To determine the prevalence of enteroviral RNA in endomyocardial biopsy samples from DCM patients.
Main Methods:
- Nested reverse transcriptase polymerase chain reaction (nRT-PCR) was employed.
- Endomyocardial biopsy tissues from 35 DCM patients and 10 controls were analyzed.
- Detection of enteroviral RNA served as the primary outcome measure.
Main Results:
- Enteroviral RNA was detected in 17 out of 35 (49%) DCM patients.
- No enteroviral RNA was found in the control group.
- DCM patients with detectable enteroviral RNA showed rapid progression to cardiac failure (within 12 months) and marked myocardial fibrosis and hypertrophy.
Conclusions:
- Enteroviral infection is a potential contributing factor in the pathogenesis of dilated cardiomyopathy.
- The presence of enteroviral RNA in myocardial tissue is associated with aggressive disease progression and cardiac remodeling.
- Further research is warranted to elucidate the precise mechanisms linking enteroviruses to DCM.
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