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Double Response of the Ventricle During Transient Entrainment in a Common Atrioventricular Nodal Reentrant Tachycardia
Author(s) -
SHIMIZU AKIHIKO,
FUKATANI MASAHIKO,
CENTURION OSMAR A.,
KONOE ATSUSHI,
ISOMOTO SHOJIRO,
KAIBARA MUNESHIGE,
YANO KATSUSUKE
Publication year - 1993
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1993.tb01533.x
Subject(s) - medicine , cardiology , reentrancy , nodal , ventricle , entrainment (biomusicology) , tachycardia , atrioventricular reentrant tachycardia , transient (computer programming) , reentry , atrioventricular node , catheter ablation , accessory pathway , ablation , operating system , computer science , rhythm , programming language
We report a patient with slow‐fast atrioventricuiar (AV)nodal reentrant tachycardia, in which double ventricuJar response was demonstrated during rapid pacing at cycle length of 300 msec or less from the high right atrium. The determinants of double ventricular response during transient entrainment in the present case were: (1)a crucial conduction delay in the slow pathway; (2)the collision between the activation via the antegrade fast pathway (antidromically)of the last paced beat and the activation via the antegrade slow pathway (orthodromically)of the previous paced beat, instead of the unidirectional block in the slow pathway; and (3)the enhanced AV nodal conduction over the antegrade fast pathway.