Copyright © 1994 by the European Society of Cardiology.
© 1994 The European Society of Cardiology
Immunohistological Characterization of Infiltrating Lymphocytes in Biopsies of Patients with Clinically Suspected Dilated Cardiomyopathy
Med. Klinik für Kardiologie, Pulmonologie und Angiologie, Universtiat Düsseldorf 40225 Düsseldorf, Germany
Correspondence: Dr Uwe Kühl, Med. Clinic of Internal Medicine. Dept. of Cardiology, University of Düsseldorf, Moorenstr. 5. 40225 Düsseldorf 1. Germany
Experimental and clinical data suggest a relationship between myocarditis and dilated cardiomyopathy. One postulated mechanism is a viral infection triggering a host response with autoimmune features directed against the heart, resulting in an initial myocarditis which is followed by dilated cardiomyopathy. Until now, the importance of myocarditis as an aetiological factor in the pathogenesis of isiopathic cardiomyopathy has been unknown. This investigation was undertaken to determine immunohistologically the frequency of lymphocytic infiltrations in endomyocardial biopsies of patients with clinically suspected dilated cardiomyopathy. T-lymphocytic subsets and other immunological features were also analysed to explore possible relationships between immunohistologically documented myocarditis and dilated cardiomyopathy.
Key Words: Dilated cardiomyopathy chronic myocarditis autoimmunology immunohistology
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