Copyright © 1980 by the European Society of Cardiology.
© 1980 The European Society of Cardiology
Alternating Wenckebach phenomenon in the His-Purkinje system: a case report
Clinique Cardiologique Hôpital Lariboisiere, 2 rue A. Pare, 75475 Paris, Cedex 10, France
Received 25 March 1980; revised 1 May 1980; .
This report describes a case of distal AV block with a 2/1 conduction in basal conditions. Atrial stimulation induced an alternating Wenckebach phenomenon (AWP), always distal to the His bundle spike, with 8/3 or 6/2 conduction at an atrial rate of 88/min, and 12/3, 8/2 or 9/2 conduction at 130/min. Models for these conduction disturbances are presented, based on previous work on AW in the AV node. The clinical significance of the distal AWP is discussed.
Key Words: AV block atrial stimulation rate