Figure Legends
Figure 1: Schematic showing lesion geometry with standard (low
power long duration) versus high power short duration (HPSD) ablation.
In homogenous tissue, radiofrequency ablation at conventional setting
using low to moderate power and relatively long duration results in a
smaller zone (yellow arrows) of resistive heating (red circle). The
deeper tissue is largely heated because of conductive heating (curved
black arrows).
High power and short duration ablation results in a larger zone
(yellow arrows) of direct resistive heating (red circles). Due to
shorter duration of ablation, there is a shorter temperature decay
resulting in less conductive heating. The bidirectional dotted arrows
represent irreversible tissue damage (modified from an illustration by
Leshem et al. J Am Coll Cardiol EP 2018;4:467–79).
Figure 2: Average radiofrequency (RF) times in high power short
duration (HPSD) ablation compared to low power long duration (LPLD)
ablation across different studies.
*Values reported as mean +/- standard deviation, except Yavin et al
(reported as median with interquartile range).
Figure 3: Average fluoroscopy times in high power short
duration (HPSD) ablation compared to low power long duration (LPLD)
ablation across different studies.
Values reported as mean +/- standard deviation.