Journal of cardiovascular electrophysiology · 2022
A very unusual wide QRS tachycardia: VT or SVT?
Клинический случайСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Verbeet Thierry, Nguyen Thomas, Castro Jose
Аннотация
INTRODUCTION: A 13 old girl presented with recurrent wide QRS tachycardia since she was 4.
METHODS: An electrophysiologic study was performed.
RESULTS: The electrophysiologic study showed that QRS complexes identical to those of the tachycardia could be elicited with premature atrial extrastimuli but with a shorter atrioventricular (AV) delay when the QRS was wide compared with narrow QRS complexes. The tachycardia was ablated at 9 o'clock on the tricuspid annulus demonstrating the presence of an atriofascicular fiber.
CONCLUSION: We believe that this atypical behavior can be explained by AV nodal like longitudinal dissociation of a slowly conducting accessory pathway.
METHODS: An electrophysiologic study was performed.
RESULTS: The electrophysiologic study showed that QRS complexes identical to those of the tachycardia could be elicited with premature atrial extrastimuli but with a shorter atrioventricular (AV) delay when the QRS was wide compared with narrow QRS complexes. The tachycardia was ablated at 9 o'clock on the tricuspid annulus demonstrating the presence of an atriofascicular fiber.
CONCLUSION: We believe that this atypical behavior can be explained by AV nodal like longitudinal dissociation of a slowly conducting accessory pathway.