Copyright © 1992 by the European Society of Cardiology.
© 1992 The European Society of Cardiology
Histopathological findings in three children with His bundle tachycardia occurring subsequent to cardiac surgery

*Departments of Paediatrics, National Heart and Lung Institute London
Departments of Cardiology, National Heart and Lung Institute Dovehouse Street, London
Received 21 January 1991; revised 30 July 1991; .
Correspondence: Dr J A. Till, Department of Paediatrics, Royal Brompton National Heart and Lung Hospital, Chelsea, Sydney Street, London SW3 6NP.
Abstract
This report concerns three children with His bundle tachycardia who died following cardiac surgery. At autopsy the conduction system was examined in detail. In all three, the sinus node was intact and supplied by a well-formed artery. Haemorrhagic tracks were identified invading the penetrating atrioventricular bundle. The tracks originated from stitches placed close to the conduction tissue. The hypothesis that disruption of the conduction tissue results in an arrhythmogenic focus is discussed.
Key Words: His bundle tachycardia post surgery histopathological findings
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