Incessant non-reentrant supraventricular tachycardia interrupted by apparent simultaneous wenckebach sequences along both nodal pathways.
We report a new case of non-reentrant supraventricular tachycardia, associated with tachycardia-induced cardiomyopathy fully reversible after radiofrequency (RF) ablation, together with striking features of apparent concomitant Mobitz type 1 atrioventricular (AV) block in both AV node pathways. Further analysis of the conduction patterns during the incessant non-reentrant tachycardia raised unresolved hypothesis about the involved mechanisms and further interrogations on AV node physiology.
Fédération de Cardiologie, University Hospital Rangueil, Toulouse, France. mauryjphil@hotmail.com
Philippe
P
Maury
Aurelien
A
Hebrard
Alexandre
A
Duparc
Anthony
A
Fontan
Kedi
K
Adegnon
Marc
M
Delay
D000368:Aged; D054537:Atrioventricular Block / Q000209:etiology* / Q000601:surgery*; D009202:Cardiomyopathies / Q000209:etiology* / Q000517:prevention & control*; D017115:Catheter Ablation / Q000379:methods*; D006801:Humans; D008297:Male; D013617:Tachycardia, Supraventricular / Q000150:complications* / Q000601:surgery*; D016896:Treatment Outcome