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Is there an isolated arrhythmogenic right atrial myocarditis?

April 26, 2017arrhythmogenic atrial myocarditis right

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Is there an isolated arrhythmogenic right atrial myocarditis?

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M. FROMER, C. GENTON, J. SCHLAEPFER*, JJ. GOY and L. KAPPENBERGER Division of Cardiology, Medical Clinic, University Hospital, University of Lausanne Lausanne *Institute of Pathology, University of Lausanne Switzerland Received 9 August 1989; revised 26 September 1989; . Address for Correspondence: M. Fromer, MD. Division of Cardiology, Centre Hospitalier University Vaudois, CHUV, 1011 Lausanne. Switzerland. Abstract Two cases with drug refractory ectopic atrial tachycardia are described. A map-guided partial resection of the right atrium (RA) was done after preoperative endocardial catheter mapping hadshown well-defined areas of fractionated RA potentials. Intraoperatively, there were no aneurysmal formations present as described by other authors. Histopathologic examination of the resected tissue showed atrial myocarditis in both patients. Postoperative right ventricular myocardial biopsies revealed no inflammatory tissue. A minor elevation of antibodies against echoviruses was found