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Retrograde Cycle Length Alternans During Supraventricular Tachycardia:
Author(s) -
CHIAMVIMONVAT NIPAVAN,
CAIN JIM,
GLATTER KATHRYN A.
Publication year - 2004
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.1540-8159.2004.00578.x
Subject(s) - medicine , supraventricular tachycardia , cardiology , supraventricular arrhythmia , tachycardia , atrial fibrillation
Cycle length alternans is occasionally seen during supraventricular tachycardia due to oscillations in the antegrade atrioventricular nodal (AVN) refractoriness. However, alternans due to retrograde variation in AVN conduction has not been reported. This report describes the case of a 36‐year‐old man with atypical AVN reentry tachycardia (AVNRT) whose episodes of tachycardia were characterized by continuous oscillations in retrograde AVN conduction. Ablation at one spot eliminated the tachycardia. Cycle length alternans due to oscillations in retrograde AVN conduction, although rare, can be seen during atypical AVNRT and should be considered. (PACE 2004; 27:1017–1019)