Catheter ablation using very high frequency current: effects on the atrioventricular junction and ventricular myocardium in sheep.


BACKGROUND Radiofrequency ablation is currently used in the treatment of various cardiac arrhythmias. However, this technique is limited by impedance rise, leading to coagulum formation and desiccation of tissue. We developed a new generator, providing very high frequency (27 MHz) current, which is in the intermediate range between radiofrequency and… (More)


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