Abstract
A patient is presented who had two paroxysmal supraventricular tachycardias, one slow and incessant and the other fast. Both paroxysmal tachycardias appeared to be atrioventricular (A-V) reentrant, with anterograde conduction by way of a normal A-V pathway. Two pathways conducting in retrograde manner were demonstrated, characterized by different conduction times (fast and slow), identical abnormal atrial activation sequence and A-V nodal-like properties (retrograde Wenckebach periodicity with rapid ventricular pacing, and depression with ouabain and propranolol). Thus, there appeared to be two anomalous A-V bundles with nodal-like properties conducting in retrograde fashion. Whether the paroxysmal tachycardia was fast or slow depended on which of these pathways was utilized. Spontaneous cure of incessant paroxysmal tachycardia was observed and coincided with unexplained total loss of ability for ventriculoatrial conduction.
Original language | English (US) |
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Pages (from-to) | 162-170 |
Number of pages | 9 |
Journal | The American journal of cardiology |
Volume | 44 |
Issue number | 1 |
DOIs | |
State | Published - Jul 1979 |
Funding
From the Section of Cardiology, Department of Medicine, Abraham Lincoln School of Medicine, University of Illinois College of Medicine, Chicago, Illinois. This study was supported in part by Training Grant HL 07387 and Research Grants HL 18794 and HL 23566 from the National Institutes of Health, Bethesda, Maryland. Manuscript received December 12, 1978; revised manuscript received February 13. 1979, accepted February 14, 1979. Address for reprints. Pablo Denes, MD, Professor of Medicine, Cardiology Department, Presbyterian-St. Luke’s Hospital, 1753 West Congress Parkway, Chicago, Illinois 60612.
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine