Wide QRS complex tachycardia and alternating bundle branch block aberration: What is the mechanism?

A 70‐year‐old man was referred for evaluation and treatment of wide QRS complex tachycardia with left bundle branch block morphology. Electrocardiography showed atrial bigeminy with an alternating bundle branch block (ABBB) aberration. Atrial burst stimulation reproducibly demonstrated ABBB. What is...

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Veröffentlicht in:	Journal of arrhythmia 2022-06, Vol.38 (3), p.478-481
Hauptverfasser:	Iwakawa, Hidehiro, Terata, Ken, Tashiro, Haruwo, Abe, Yoshihisa, Watanabe, Hiroyuki
Format:	Artikel
Sprache:	eng
Schlagworte:	aberration Anti-arrhythmia drugs atrial tachycardia Cardiac arrhythmia Care and treatment Electrocardiogram Electrocardiography left bundle branch block Morphology refractory period right bundle branch block Spotlight Tachycardia
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Zusammenfassung:	A 70‐year‐old man was referred for evaluation and treatment of wide QRS complex tachycardia with left bundle branch block morphology. Electrocardiography showed atrial bigeminy with an alternating bundle branch block (ABBB) aberration. Atrial burst stimulation reproducibly demonstrated ABBB. What is the mechanism?
ISSN:	1880-4276 1883-2148
DOI:	10.1002/joa3.12704