Field Medical Inc. continues to reap funding from investors for its pulsed field ablation (PFA) system with a $35 million oversubscribed series B financing round. With treatment of atrial fibrillation already upended by PFA technology, Field sees ventricular tachycardia as a fertile new territory for transformation.

Presentations at Heart Rhythm 2025 for Field Medical Inc. and Adagio Medical Holdings Inc. demonstrated success in two very different types of ablation for ventricular tachycardia, potentially offering new options for a harder-to-treat type of arrhythmia.

Field Medical Inc. reaped $40 million in its series A fundraising via $20 million in new capital and conversion of $20 million in seed-round debt to support development of its next-generation pulsed field ablation technology. Field Medical’s Fieldforce ablation system targets ventricular tachycardia as its initial use, but also has a study in process for atrial fibrillation.

The force is with Field Medical Inc. as it celebrates the U.S. FDA’s decisions to grant breakthrough device designation (BDD) to its Fieldforce ablation system and to accept it into the agency’s Total Product Life Cycle Advisory Program pilot. Field Medical designed the Fieldforce pulsed field ablation catheter specifically to treat ventricular tachycardia. The BDD applies to its use in monomorphic scar-related VT.

Medtronic plc received U.S. FDA approval to undertake an early feasibility study of its dual-energy Affera cardiac ablation system in sustained ventricular tachycardia. Affera combines both radiofrequency and pulsed field ablation technologies in the Sphere-9 catheter along with high-density mapping.

Field Medical Inc. kicked off its first-in-human study for its Fieldforce ablation system, designed for use in ventricular arrhythmias. The Ventricular Catheter Ablation Study study will enroll 60 patients in five centers around the world, most recently kicking off in the Na Homolce Hospital in Prague, Czech Republic.