The Annals of Thoracic Surgery, Vol 54, 306-310, Copyright © 1992 by The Society of Thoracic Surgeons
Accessory atrioventricular node and bundle: a cause of antidromic reentry tachycardia
WC Sealy, HE Kopelman and DA Murphy
Department of Surgery, Mercer University School of Medicine, Macon, Georgia.
Two patients are described with antidromic reentry tachycardia successfully
treated by interruption of an anterior septal accessory atrioventricular
node and bundle. This anomalous connection resembles an atrioventricular
conduction sling seen in complex congenital heart malformations. It has
atrioventricular node-like properties, is located in the anterior septal
area, will only conduct antegrade, and has an insulated connection to the
right bundle branch. Rather than nodoventricular, nodofascicular,
atriofascicular, or Mahaim, a more appropriate label for the connection is
accessory atrioventricular node and bundle.