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Two Accessory Pathways, Dual AV Nodal Conduction, and 1:2 Ventriculoatrial Conduction in a Patient with Multiple Supraventricular Tachycardias
Author(s) -
ROSENFELD LYNDA E.,
BATSFORD WILLIAM P.
Publication year - 1990
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.1540-8159.1990.tb05067.x
Subject(s) - medicine , supraventricular tachycardia , nodal , dual (grammatical number) , thermal conduction , cardiology , tachycardia , materials science , composite material , art , literature
Multiple Supraventricular tachycardias were induced in a patient with two left posterior accessory pathways and dual afrioventricular nodal conduction. One of the accessory pathways conducts slowly and exhibits decremental conduction. A “double retrograde response” (2:1 ventriculoatrial conduction) due to simuJtaneous retrograde propagation of a single ventricular depolarization over two longitudinally dissociated pathways plays a role not only in tachycardia initiation, but in the maintenance of a unique, irregular tachycardia.