Key result
High-resolution mapping using a mini-basket catheter delineated the entire macroreentrant ventricular tachycardia circuit around a left ventricular aneurysm, allowing termination with a single ablation.
Case Report (n=1)
No
High-resolution mapping with a mini-basket catheter allows rapid and detailed delineation of complex postinfarction macroreentrant VT circuits, facilitating successful targeted ablation.
High-resolution mapping may facilitate efficient ablation of postinfarction macroreentrant VT; hypothesis-generating pending prospective validation.
Activation mapping of ventricular tachycardia (VT) is rarely accomplished owing to limited temporal and spatial resolution, unacceptably long mapping time, and hemodynamic instability.1 Entrainment mapping is a reasonable approach to identify targets for ablation in patients with tolerated postinfarction reentrant VTs; however, it often does not allow delineation of the entire VT circuit.2,3 Introduction of newer mapping technologies capable of rapid and high-resolution electroanatomic mapping may allow detailed activation mapping of macroreentrant VTs, enhancing our understanding of macroreentrant circuit geometry and electrophysiology to facilitate ablation.
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Anter et al. (2015) conducted a case report in Recurrent monomorphic ventricular tachycardia (n=1). High-resolution electroanatomic mapping and radiofrequency ablation was evaluated on Termination of ventricular tachycardia. High-resolution mapping using a mini-basket catheter delineated the entire macroreentrant ventricular tachycardia circuit around a left ventricular aneurysm, allowing termination with a single ablation.
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