Tissue cutting systems and methods

A kit for performing an electrosurgical procedure comprising:

• an electrosurgical guidewire including:
• a core wire having a proximal end, and a distal end and being defined by an outer surface between the proximal end and the distal end of the core wire, said core wire having a centerline that traverses the length of the core wire from the proximal end to the distal end of the core wire;
• a dielectric coating disposed about the core wire, wherein the proximal end and distal end of the core wire are electrically exposed and the proximal end of the core wire is configured to be coupled to an electrosurgical generator;
• a radiopaque marker pattern disposed over the core wire to indicate a location proximate a middle section of the guidewire to be kinked and partially denuded by removing the dielectric coating to electrically expose the core wire;
• and a pair of guiding catheters, each said guiding catheter having a proximal end and a distal end and defining an elongate lumen along its length, wherein a distal opening defined in each guiding catheter is configured to receive the proximal end of the core wire therethrough or the distal end of the core wire therethrough;
• a pair of grippers, each said gripper being configured to be coupled to a respective proximal end of each said guiding catheter, wherein each said gripper is further configured to be selectively coupled to the guidewire to permit the relative position of the guidewire and the guiding catheters to be fixed;
• and
• a kinking and denuding device that is configured to kink and denude the core wire proximate the radiopaque marker.