Conclusion
A dedicated RF wire had greater success and consistency in achieving TSP
compared to electrified metal guidewires, which required higher power,
were more dependent on the distance between the wire tip and dilator
tip, and required more RF applications to perforate tissues. Use of
electrified guidewires for TSP was associated with damage to the
guidewire and dilator and may present electrosurgical hazards, as well
as risks of thrombus, thermal injury, and tissue scarring. Further
studies are needed to identify the clinical implications of these
findings and assess cost considerations related to routine use of
dedicated RF wires for TSP.