Premium
Ventriculoatrial Block During Atrioventricular Nodal Reentrant Tachycardia Utilizing Multiple Retrograde Pathways
Author(s) -
INO TAKESHI,
TADERA TAKESHI,
MIYAMOTO SHINJIROH,
TANAKA KOTOKO,
OHNO TADAAKI,
NAGASAWA KOICHI,
HAYAKAWA HIROKAZU
Publication year - 1998
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.1998.tb00093.x
Subject(s) - medicine , reentry , tachycardia , cardiology , nodal , qrs complex , anesthesia , electrocardiography , heart block
VA Block During Multiple AVNRT. A rare case of narrow QRS tachycardia continuing despite the occurrence of VA block is reported. Right ventricular stimulation suggested dual AV nodal physiology. The tachycardia was induced by ventricular premature stimulation, which failed to depolarize the atrium. Two types of tachycardia that had different retrograde conduction sequences, HA intervals, and cycle lengths were induced. The occurrence of VA block did not terminate the tachycardia but transiently prolonged the tachycardia cycle length. These findings suggest the mechanism is AV nodal reentry utilizing multiple retrograde pathways with intranodal reentry bridging the VA block and maintaining the tachycardia.