A very unusual wide QRS tachycardia: VT or SVT?

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 w...

Full description

Saved in:
Bibliographic Details
Published in:Journal of cardiovascular electrophysiology 2023-01, Vol.34 (1), p.231-234
Main Authors: Verbeet, Thierry, Nguyen, Thomas, Castro, Jose
Format: Article
Language:English
Subjects:
Accessory Atrioventricular Bundle - diagnosis
Accessory Atrioventricular Bundle - surgery
Atrioventricular Node - surgery
atypical atriofascicular fiber
Bundle of His
Electrocardiography
Female
Heart Atria
Humans
longitudinal dissociation
Tachycardia
wide QRS tachycardia
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1045-3873
1540-8167
DOI:10.1111/jce.15793