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  • Title: [Cytomegalovirus associated diseases of the heart].
    Author: Schönian U, Maisch B.
    Journal: Herz; 1992 Apr; 17(2):85-90. PubMed ID: 1315712.
    Abstract:
    Latent cytomegalovirus (CMV) infection is not uncommon in the juvenile and adult population. The full blown disease is mostly restricted to immunosuppressed and immunodeficient patients, but may also occur in healthy individuals. The acute CMV-myocarditis often takes a mild course with only transient changes of left ventricular hemodynamics or a pericardial effusion as assessed by echocardiography. In our patient population it was characterized by the presence of anti-interfibrillary antibodies. In acute myocarditis the virus genome can be detected by in-situ hybridization in 42% (40% in the myocytes, 21% in the interstitial cells and 41% in endothelial cells). In patients with perimyocarditis CMV-DNA is found in 24% of patients in the myocytes, in 24% of patients in the interstitial cells and in 50% of patients in the endothelium. In healthy controls CMV-DNA could be assessed only in interstitial and endothelial cells (70% and of the infected 30% of positive cases) but not in the myocytes. In dilated cardiomyopathy (DC) CMV-DNA can be found in 48%. Particularly in myocytes in 45% of cases, in interstitial cells in 50% and in the endothelium of small vessels in 68%. An induction of the disease by a chronic local stimulation of the immune system is a likely pathogenetic explanation of the immuno phenomena observed in parallel to the viral persistence. Additive damage by chronic CMV infection can be caused by the infection of the endothelium and smooth muscle cells of the intima of coronary arteries. There are some reports of CMV-DNA detection in the arterial walls or atherosclerotic plaques of patients with atherosclerosis.(ABSTRACT TRUNCATED AT 250 WORDS)
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