An electrically conductive sheath introducer is provided which functions as a unipolar electrode as well as a percutaneous vascular sheath introducer for a catheter. Typically, the catheter will include an electrode at its distal portion, and a circuit will be developed which includes the electrode of the catheter and the electrically conductive sheath introducer. Various electrical procedures are thus possible, including recording and energy delivery. The sheath introducer is rendered electrically conductive by ion process deposition treatment of the polymeric material sheath with a metallic material or materials. The resulting electrically conductive sheath introducer exhibits an incredibly low resistivity and resistance.