Irrigation of Pulsed Field Ablation Electrodes Mitigates Joule Heating and Heat Stacking Phenomena
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WH Sauer, D Campos-Villarreal, NA Steiger
JACC: Clinical …, 2025
Elsevier
Condensed Abstract: Pulsed field ablation (PFA) has emerged as a non-thermal method for cardiac ablation for the treatment of arrhythmias. Several packets of high-voltage biphasic pulses result in the irreversible electroporation of targeted myocytes, rendering the tissue electrically inert. Although the ablation is non-thermal, the temperature of the metal electrodes used to deliver high-voltage pulses will rise due to Joule heating. Additionally, the successive delivery of high-voltage pulses will lead to further increases in temperature …
