Moving the Needle: Tissue Characterization and Lesion Formation During Infusion-Needle Ablation

Identifying targets for the successful ablation of ventricular tachycardia is a major challenge despite recent advances such as targeting zones of conduction slowing or MRI-identified fibrosis1,2. Once targets are identified, impediments to successful catheter ablation include deep substrates, mid-myocardial locations, and ill-defined anatomic barriers. In an effort to ablate intramural arrhythmia substrates deep to the endocardium, irrigated radiofrequency needle catheters have recently been developed.

Source: Heart Rhythm - October 11, 2019 Category: Cardiology Authors: Duy T. Nguyen, Sanjiv M. Narayan Source Type: research