Advanced Electroanatomic Mapping with the TriDeca™ Catheter in Left Ventricular Assist Device-associated Ventricular
Chandler O' Leary1, Alexander Bosley1, Ali Saad Al-Shammari2
1Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA.
Abstract:
Ventricular tachycardia (VT) in patients with left ventricular assist devices (LVADs) poses significant procedural challenges for catheter ablation due to altered cardiac anatomy, mechanical interference, and hemodynamic instability. High-density (HD) mapping technologies may improve procedural efficacy and safety in this complex population. We present two cases of drug-refractory monomorphic VT in patients supported by HeartMate 3™ LVADs (Abbott, Chicago, IL, USA), successfully managed using the TriDeca™ HD linear mapping catheter (Stereotaxis, St. Louis, MO, USA). In both cases, precise localization of slow conduction zones and targeted substrate ablation resulted in sustained arrhythmia suppression without recurrence during follow-up. These cases highlight the value of advanced mapping systems in overcoming LVAD-related limitations and optimizing ablation outcomes.
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