Key result
Ablation strategies for ventricular tachycardia in nonischemic cardiomyopathies are guided by advances in cardiac imaging and mapping that characterize arrhythmogenic scar locations.
Why the study?
An increasing number of patients with nonischemic cardiomyopathies require therapy to reduce scar-related ventricular arrhythmias, though the pathophysiology of scar development is not well understood.
This review highlights how advances in cardiac imaging and mapping characterize scar locations to inform ablation strategies for ventricular tachycardia in nonischemic cardiomyopathies.
May inform ablation planning in NICM VT; leaves open prospective trials to validate imaging-guided outcomes.
As the population of patients with implanted defibrillators has grown, an increasing number of patients nonischemic cardiomyopathies are requiring therapy to reduce ventricular arrhythmias. Most of these arrhythmias are related to areas of ventricular scar. Although the pathophysiology of scar development is not well understood in these diseases, advances in cardiac imaging and mapping are better characterizing the scar locations that give rise to the arrhythmias. Here, we review the pathophysiologic and electrocardiographic correlations that inform ablation strategies for ventricular tachycardia in these diseases.
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Kanagasundram et al. (2019) conducted a review in Sustained Monomorphic Ventricular Tachycardia in Nonischemic Heart Disease. Ablation strategies was evaluated. Ablation strategies for ventricular tachycardia in nonischemic cardiomyopathies are guided by advances in cardiac imaging and mapping that characterize arrhythmogenic scar locations.
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