Key result
Radiofrequency ablation alters QRS configuration in idiopathic LV tachycardia, suggesting alternative reentrant pathways.
Why the study?
Idiopathic left ventricular tachycardia can demonstrate changes in QRS morphology during radiofrequency catheter ablation, suggesting alternative pathways within the reentrant circuit.
Case Report (n=1)
Idiopathic left ventricular tachycardia may have alternative pathways within the reentrant circuit leading to different exits during ablation.
Variable QRS in ILVT ablation signals possible alternative exits; leaves open optimal mapping strategies for future studies.
Idiopathic left ventricular tachycardia is a distinct clinical entity with a typical ECG of right bundle branch block and left axis deviation. We presented a 39-year-old man with idiopathic left ventricular tachycardia, which demonstrated change in the configuration of QRS complex during successive radiofrequency catheter ablation. We proposed that this idiopathic left ventricular tachycardia may have alternative pathways within the reentrant circuit leading to different exits.
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Chen et al. (1998) conducted a case report in Idiopathic left ventricular tachycardia (n=1). Radiofrequency catheter ablation was evaluated on Change in the configuration of QRS complex. Radiofrequency catheter ablation in a patient with idiopathic left ventricular tachycardia demonstrated a change in QRS complex configuration, suggesting alternative pathways in the reentrant circuit.
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