Figure 3. (A) Overall effectiveness of RF wire compared to
electrified guidewires (EG) (B) 0.032” EG requires significantly more
RF applications and both EGs have more variability between tissue
samples than the dedicated RF wire. (C) TSP using the RF wire was 100%
successful regardless of the distance between the wire tip and dilator
tip, whereas effectiveness of EG declined with distance. Data reported
as mean attempts to perforate each sample, up to 8 RF applications
(Significance shown for electrified guidewires vs. RF wire.
*p<0.05, **p<0.01, ***p<0.0001 for means
between each group; #p < 0.0001 for sample
variance within each group).