A patient was referred for a generator for an unknown reason.After the surgery, it was reported that the patient had high impedance identified.The explanted lead and generator were both sent back to the manufacturer for review.The explanted generator had product analysis completed on 10/31/2016.Per the pa results, the generator performed according to functional specifications and showed the ability to properly measure resistance values.The returned portions of the lead were also analyzed and had analysis completed on 10/31/2016 as well.The set screw marks found on the lead connector pins proved that at one point in time a good mechanical and electrical connection was present.A lead fracture was identified in the connector pin quadfilar coil.Scanning electron microscopy was performed and identified the area on one of the broken coil strands as having evidence of a stress induced fracture.Abraded openings were identified on the lead's outer silicone tubing as well.
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