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Stroke volume changes during focal pulsed field vs. radiofrequency ablation for ventricular substrate using Sphere-9 catheter assessed by arterial waveform analysis: a prospective case series.

2026-02-25 cardiovascular medicine Title + abstract only
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AimsCatheter ablation using radiofrequency (RF) or pulsed field (PF) energy is an effective treatment method for ventricular arrhythmia (VA). PF offers advantages in lesion formation in anatomically challenging regions. However, its acute effects on ventricular contractility during substrate modification require further elucidation. This study aimed to compare real-time hemodynamic changes associated with PF versus radiofrequency ablation in the left ventricle using stroke volume (SV) as a surro...

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