September 10, 2009Pacing and Clinical Electrophysiology
Two Ventricular Tachycardias with Cycle Length and QRS Alternans: Insights into the Mechanism from Mapping and Ablation of the Tachycardias
Population
1 patient with two separate foci of idiopathic ventricular tachycardia in the right ventricle manifesting…
Design
Case_report
Authors
Discussion
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Member takes
Implication
VT with alternans may reflect self-entraining modulated parasystole amenable to ablation; leaves open prevalence and validation in prospective series.
Structured PICO
P
Population
1 patient with two separate foci of idiopathic ventricular tachycardia in the right ventricle manifesting cycle length and QRS alternans
I
Intervention
Electrophysiologic study and ablation
O
Outcome
Successful ablation and determination of tachycardia mechanism
This case demonstrates that ventricular tachycardias with cycle length and QRS alternans can be successfully ablated and may be explained by self-entraining modulated parasystole.
Cite This Study
Kalbfleisch et al. (2009) studied this question.