Novel Mapping Techniques and Ablation Technologies for VT Ablation-Novel Mapping Techniques and Ablation Technologies for VT Ablation

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Video Summary

At the Heart Rhythm 2025 meeting in San Diego, a series of sessions focused on novel mapping and ablation technologies for ventricular tachycardia (VT) ablation were held. Andrea Kiethler chaired the session, which began with Katcha Jirga discussing preclinical evaluations of an ultra-low temperature cryoablation catheter. This device uses nitrogen at high-pressure and low-temperature states to achieve rapid cooling for effective cell destruction. The catheter is designed to reach depths of 10mm or more, benefiting patients sensitive to volumetric changes.<br /><br />The session continued with discussions on pulse field ablation (PFA) and its application in VT treatment, with Arway Eunice presenting early series results from using a pentaspline catheter. This approach promises fewer complications and decreased procedure times. The importance of combining peak frequency mapping with electro-anatomical mapping for identifying critical VT pathways was emphasized by Daisuke Togashi.<br /><br />Atul Verma concluded with long-term outcomes of ultra-low temperature cryoablation from the CryoCure VT trial, highlighting enduring efficacy, particularly in ischemic VT, with reduced recurrences and reliance on antiarrhythmics. He also introduced the Fulcrum VT US Pivotal trial, aimed at further assessing these techniques. Overall, the session accentuated advances in VT ablation technology aiming for more effective and safer procedures.

Keywords

ventricular tachycardia

cryoablation catheter

ultra-low temperature

pulse field ablation

electro-anatomical mapping

CryoCure VT trial

Fulcrum VT US Pivotal trial

novel mapping technologies

ablation techniques