Tissue Puncture Site Comparison
There were visually larger defects with a greater amount of tissue
charring, and non-homogeneous morphology at puncture sites made by
0.014” and 0.032” electrified guidewires compared to the RF wire
(Figure 4). These qualitative differences between electrified guidewires
and RF wire septal defects were observed at all power settings and
dilator-wire tip distances. Within electrified guidewire groups, the
size of puncture defects appeared larger, and more charring was observed
with increasing power.